Sofa audio system, audio adjusting method, storage medium and program product

Abstract

The application discloses a sofa audio system, an audio adjusting method, a storage medium and a program product. The sofa audio system comprises a power amplifier box, at least one distribution box and an audio playing device. Each seat of the sofa corresponds to one distribution box. The power amplifier box is connected with any one or more of the at least one distribution box. The distribution boxes are connected in communication. Each distribution box is connected with the corresponding audio playing device. The power amplifier box is used for transmitting the received audio signal to each distribution box. The distribution box is used for transmitting the audio signal output by the power amplifier box to the corresponding audio playing device for playing. The application solves the technical problem of poor user experience effect of the multi-seat audio system in the related art when playing audio synchronously.

Description

Technical Field

[0001] This application relates to the field of audio equipment technology, and more specifically, to a sofa audio system, an audio adjustment method, a storage medium, and a program product. Background Technology

[0002] With the upgrading of home entertainment needs, electric sofas are no longer just seating, but have become the core carrier of audio-visual experience. Existing sofa audio systems mainly adopt two architectures: one is to configure each sofa with an independent amplifier module, and realize multi-device wireless networking for synchronized playback via Bluetooth or Wi-Fi; the other is to use audio cables or optical fibers to connect the amplifier units of multiple sofas in series to achieve wired signal transmission. Although the former supports multi-device linkage, it has problems such as cumbersome pairing, inconsistent latency between devices, easy misconnection of nearby devices, and susceptibility to wireless transmission interference; although the latter avoids the defects of wireless synchronization, it suffers from signal attenuation, background noise introduction, complex wiring, poor scalability, and difficulty in adapting to different sofa combination configurations due to long-distance transmission.

[0003] More importantly, existing sofa audio systems can only provide a standardized listening experience across the entire system, resulting in poor user experience when audio is played simultaneously in multiple seats.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] This application provides a sofa audio system, an audio adjustment method, a storage medium, and a program product to at least solve the technical problem of poor user experience in multi-seat audio systems when multiple seats play audio synchronously.

[0006] According to one aspect of the embodiments of this application, a sofa audio system is provided, comprising: a power amplifier box, at least one splitter box, and an audio playback device; each sofa position in the sofa corresponds to a splitter box; the power amplifier box is connected to any one or more of the at least one splitter box, the splitter boxes are communicatively connected to each other, and each splitter box is connected to its corresponding audio playback device; the power amplifier box is used to process and amplify the received audio signal before sending it to each splitter box; the splitter box is used to send the audio signal output by the power amplifier box to its corresponding audio playback device for playback.

[0007] Optionally, the power amplifier box includes: an audio receiving module, a digital signal processing chip, and a power amplifier module. The audio receiving module is used to receive audio signals output from an audio source. The digital signal processing chip is used to perform channel mapping and frequency division processing on the audio signals according to the current audio mode to generate multi-channel audio signals. The audio mode is used to indicate the channel allocation rules and frequency division parameters of the audio signals. The power amplifier module is used to amplify the audio signals of each channel and send them to each splitter box to drive the corresponding audio playback devices.

[0008] Optionally, audio signals from different channels are used to drive audio playback devices in different locations, and multiple audio playback devices in the same location play audio at the same or different frequencies; the multi-channel audio signals include at least one of the following: full-range main channel signal, left channel signal, right channel signal, and subwoofer channel signal, wherein the full-range main channel signal is used to drive one or more full-range speakers located at the armrest position of each sofa seat; the left channel signal is used to drive one or more full-range speakers located at the left side of the headrest position of each sofa seat; the right channel signal is used to drive one or more full-range speakers located at the right side of the headrest position of each sofa seat; and the subwoofer channel signal is used to drive one or more subwoofers located at the coffee table of the sofa, wherein the coffee table is located between two adjacent sofa seats.

[0009] Optionally, the multi-channel audio signal also includes: an oscillator channel signal, and the sofa audio system further includes: a low-frequency oscillator for converting the audio signal into physical vibrations, and the oscillator channel signal for driving one or more low-frequency oscillators located at the bottom and / or backrest of each sofa position.

[0010] Optionally, the digital signal processing chip is further configured to extract a first low-frequency component from the audio signal output from the audio source, and to independently equalize and adjust the first low-frequency component to generate a subwoofer channel signal, wherein the first low-frequency component is a low-frequency component in the audio signal whose frequency is lower than a first frequency threshold; and to extract a second low-frequency component from the audio signal, and to scale the second low-frequency component with an intensity coefficient to generate an oscillator channel signal, wherein the second low-frequency component is a low-frequency component in the audio signal whose frequency is lower than a second frequency threshold, and the second frequency threshold is less than the first frequency threshold.

[0011] Optionally, the digital signal processing chip is further configured to determine the audio scene type corresponding to the audio signal output from the audio source, wherein the audio scene type is determined by receiving a user instruction or by analyzing the spectral characteristics of the audio signal, and the audio scene type includes at least one of the following: music scene, movie scene, game scene; based on the audio scene type, a first frequency threshold and / or a second frequency threshold are determined, and the intensity coefficient scaling ratio corresponding to the second low-frequency component under the audio scene type is determined, wherein the first frequency threshold and / or the second frequency threshold are different under different audio scene types, and the intensity coefficient scaling ratio is used to adjust the tactile vibration intensity of the oscillator channel signal.

[0012] Optionally, each splitter box includes an independent control unit. The independent control unit is used to adjust the audio signal output by the power amplifier box according to the status parameters corresponding to the sofa position where the splitter box is located, and to send the adjusted audio signal to the audio playback device for playback. The status parameters are used to characterize the operating condition of the sofa position where the splitter box is located.

[0013] Optionally, the sofa audio system also includes at least one pressure sensor disposed on each sofa position; an independent control unit is further configured to acquire pressure data detected by the pressure sensor and the corresponding position identification information of the pressure sensor, and determine a pressure distribution heat map based on the pressure data and the position identification information, wherein the position identification information is used to characterize the position of the pressure sensor on the sofa position, and the pressure distribution heat map is used to characterize the spatial distribution of pressure intensity in the area where the user's body contacts the sofa position; based on the pressure distribution heat map, determine the usage status information corresponding to the sofa position, wherein the usage status information includes at least one of the following: whether the sofa position is currently used by a user, the user's weight range, and the user's sitting posture type; if the usage status information indicates that the sofa position is currently used by a user, determine the oscillator gain reference value corresponding to the user's weight range, and supplement the oscillator gain reference value with the gain compensation value corresponding to the user's sitting posture type to obtain a target oscillator gain value; based on the target oscillator gain value, further adjust the oscillator channel signal received by the current sofa position, wherein the oscillator channel signal is used to drive one or more low-frequency oscillators disposed at the bottom and / or backrest positions of each sofa position.

[0014] Optionally, the sofa audio system also includes at least one microphone located on each sofa position; an independent control unit, which is further used to play a preset test audio signal through the audio playback device corresponding to the sofa position, and to collect the acoustic response signal corresponding to the test audio signal through the microphone, wherein the acoustic response signal is the actual sound pressure signal of the test audio signal reaching the microphone after reflection and absorption by the acoustic environment of the space where the sofa position is located; by analyzing the acoustic response signal, a low-frequency response curve corresponding to the sofa position is determined, wherein the low-frequency response curve is used to characterize the amplitude response characteristics of the low-frequency sound pressure at the location of the sofa position as a function of frequency; based on the low-frequency response curve, a low-frequency compensation curve corresponding to the sofa position is generated, wherein the low-frequency compensation curve is used to indicate the amount of gain adjustment required to equalize the peak or peak-valley caused by the room boundary effect in the low-frequency response curve; and based on the low-frequency compensation curve, the low-frequency signal in the audio signal received by the sofa position is compensated.

[0015] Optionally, the sofa audio system further includes: at least one pressure sensor disposed on each sofa position, and infrared sensors disposed on both sides of the headrest of each sofa position; an independent control unit, further configured to acquire pressure data detected by the pressure sensors and distance data detected by the infrared sensors, and determine the head position information of the user on the sofa position based on the pressure data and distance data, wherein the pressure data is used to determine the contact state and contact area between the user's head and the headrest, and the distance data is used to determine the offset distance of the user's head relative to the left and right sides of the headrest; based on the head position information, determine the acoustic path difference from the full-range speakers disposed on the left and right sides of the headrest to the user's ears, wherein the acoustic path difference is used to characterize the difference in the propagation distance of sound from the left and right full-range speakers to the user's ears due to the offset of the user's head; based on the acoustic path difference, determine the compensation delay amount corresponding to the full-range speakers disposed on the left and right sides of the headrest, and further adjust the left channel signal used to drive the full-range speaker on the left side of the headrest and / or the right channel signal used to drive the full-range speaker on the right side of the headrest based on the compensation delay amount to ensure that the sound image is located in the center of the user's head.

[0016] According to another aspect of the embodiments of this application, an audio adjustment method is also provided, applied to a sofa audio system. The sofa audio system includes: a power amplifier box, at least one splitter box, and an audio playback device; each sofa position in the sofa corresponds to a splitter box; the power amplifier box is connected to any one or more of the at least one splitter box, the splitter boxes are communicatively connected to each other, and each splitter box is connected to its corresponding audio playback device; the method includes: obtaining a state parameter corresponding to the sofa position where the splitter box is located, wherein the state parameter is used to characterize the operating condition of the sofa position where the splitter box is located; adjusting the audio signal after audio processing and power amplification by the power amplifier box according to the state parameter, and sending the adjusted audio signal to the audio playback device for playback.

[0017] According to another aspect of the embodiments of this application, a non-volatile storage medium is also provided, the non-volatile storage medium including a stored computer program, wherein the device where the non-volatile storage medium is located executes an audio adjustment method by running the computer program.

[0018] According to another aspect of the embodiments of this application, a computer program product is also provided, including a computer program that, when executed by a processor, implements the steps of an audio adjustment method.

[0019] According to another aspect of the embodiments of this application, a music sofa is also provided, including a sofa body containing multiple sofa seats. The sofa body includes: an interactive controller, a power amplifier box, multiple splitter boxes corresponding to each sofa seat, and an audio playback device. The power amplifier box is connected to any one or more of the at least one splitter box, and the splitter boxes are communicatively connected to each other. Each splitter box is also connected to its corresponding audio playback device. The power amplifier box processes and amplifies the received audio signal before sending it to each splitter box. The splitter boxes send the audio signal output from the power amplifier box to their respective audio playback devices for playback. The interactive controller is communicatively connected to the power amplifier box and receives user input commands, generating control signals based on the user input commands and sending them to the power amplifier box to control the audio playback function.

[0020] Optionally, the music sofa also includes a main control box. The interactive controller and the power amplifier box establish a communication connection through the main control box, and the main control box has a built-in sofa function control module or is connected to the sofa function control box. The main control box is used to receive control signals sent by the interactive controller and send the control signals to the power amplifier box to control the audio playback function, and / or send the control signals to the sofa function control module or the sofa function control box to control the sofa function. The sofa function includes at least one of the following: sofa posture adjustment function, airbag massage function, and seat heating function.

[0021] Optionally, the main control box is also used to receive audio playback status information fed back by the power amplifier box and / or sofa function status information fed back by the sofa function control box, and send the audio playback status information and / or sofa function status information to the interactive controller.

[0022] Optionally, the interactive controller includes a touch screen and a hinge mechanism, wherein the touch screen is angle-adjustable via the hinge mechanism, the touch screen has a folded state and a displayed state, and the touch screen is used to display current audio playback information and / or the status of various sofa functions.

[0023] Optionally, the user input command includes: a first control command, wherein the first control command is used to set the audio scene type corresponding to the audio playback and to set the airbag massage function to be activated in conjunction with the audio playback; and a main control box, which, upon receiving a control signal generated based on the first control command, determines the target airbag massage mode according to the audio scene type indicated by the first control command, and controls the airbag massage control box to perform airbag inflation and deflation operations according to the massage parameters corresponding to the target airbag massage mode. Different audio scene types correspond to different airbag massage modes, and different airbag massage modes correspond to different massage parameters, which include at least one of the following: airbag inflation and deflation frequency, airbag inflation and deflation intensity, airbag inflation and deflation timing mode, and airbag action area.

[0024] In this embodiment, a sofa audio system is adopted, comprising a power amplifier box, at least one splitter box, and audio playback devices. Each sofa seat corresponds to a splitter box. The power amplifier box is connected to any one or more of the at least one splitter box, and the splitter boxes are communicatively connected to each other. Each splitter box is also connected to its corresponding audio playback device. The power amplifier box processes and amplifies the received audio signal before sending it to each splitter box. The splitter box sends the audio signal output from the power amplifier box to its corresponding audio playback device for playback. By adopting a cascaded architecture of a centralized power amplifier box and distributed splitter boxes, the system solves the problems of complex networking, inconsistent latency, and cumbersome wiring in traditional sofa audio systems in related technologies. It also achieves centralized processing, unified driving, and flexible adjustment of audio signals from multiple seats, thereby solving the technical problem of poor user experience when multiple seats simultaneously play audio in multi-seat audio systems in related technologies. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0026] Figure 1 This is a schematic diagram of the architecture of a sofa audio system according to an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the architecture of a sofa multi-position audio system based on a centralized power amplifier and a junction box cascaded, according to an embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the internal modules of a power amplifier box and their signal flow according to an embodiment of this application;

[0029] Figure 4This is a schematic diagram of the internal structure of a junction box and its local wiring according to an embodiment of this application;

[0030] Figure 5 This is a schematic diagram illustrating the configuration of the sound-generating and vibration units in a sofa audio system according to an embodiment of this application;

[0031] Figure 6 This is a schematic diagram of the circuit connection structure of an electric sofa and its audio system according to an embodiment of this application;

[0032] Figure 7 This is a schematic diagram of an audio adjustment method according to an embodiment of this application;

[0033] Figure 8 This is a hardware structure block diagram of a computer terminal (or electronic device) for implementing an audio adjustment method according to an embodiment of this application;

[0034] Figure 9 This is a schematic diagram of the structure of an interactive controller in a display state according to an embodiment of this application;

[0035] Figure 10 This is a schematic diagram of the structure of an interactive controller in a folded state according to an embodiment of this application. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] In related technologies, due to the dispersed audio signal processing and power drive, non-standardized channel layout, lack of decoupling of low-frequency signals, and lack of perception and parameter linkage mechanism for seat operation status, multi-seat audio systems cannot achieve personalized adjustment of audio signals according to the operating conditions of different sofa positions (such as human posture, spatial position, user identity, etc.), which seriously affects the consistency and relevance of immersive experience and restricts the application value of smart sofas in high-end home audio-visual scenarios.

[0039] To address the aforementioned issues, this application provides a solution that integrates an electric sofa into an audio system. This system employs a centralized amplifier and distributed junction box architecture, with a full-range speaker zonal layout at its core, and supports independent immersive listening for multiple sofa positions. The details are described below.

[0040] According to an embodiment of this application, an embodiment of a sofa audio system is provided. Figure 1 This is a schematic diagram of the architecture of a sofa audio system according to an embodiment of this application, as shown below. Figure 1 As shown, the system includes: an amplifier box, at least one splitter box, and an audio playback device, wherein,

[0041] Each sofa seat in the sofa has a corresponding junction box; the amplifier box is connected to any one of the junction boxes, the junction boxes are connected to each other by connecting cables, and each junction box is connected to its corresponding audio playback device.

[0042] A power amplifier box is used to process and amplify the received audio signals before sending them to various junction boxes.

[0043] The splitter box is used to transmit the audio signal output by the power amplifier box to the corresponding audio playback device for playback.

[0044] In this embodiment, the power amplifier box, as the core processing unit, can receive audio input from the audio source and establish a physical connection with the splitter box through the signal output link; while the splitter box, as the intermediate wiring unit, can receive multi-channel audio signals from the power amplifier box and distribute them to the sound-generating unit (i.e., audio playback device) and vibration unit of the corresponding seat.

[0045] In this embodiment, the junction box also supports cascading expansion to adapt to the deployment needs of multiple sofa positions. Specifically, the power amplifier box can establish a communication connection (wireless or wired) with any one or more of the at least one junction box to form the initial signal transmission link of the system;

[0046] For example, in one embodiment of this application, the power amplifier box can establish a connection with the first splitter box through a single communication interface. The splitter box is then connected to subsequent splitter boxes in a cascading manner to form a chain topology. This connection method has simple wiring and low cost, and is suitable for layout scenarios where sofa positions are arranged linearly.

[0047] In another embodiment of this application, the power amplifier box can be configured with two independent communication interfaces, which are respectively connected to the first junction box on the two branches to form a tree-like branching topology. This connection method distributes the bus load to dual-path parallel transmission, effectively reducing signal attenuation and delay accumulation caused by long-distance transmission on a single line, improving overall transmission efficiency and communication reliability. At the same time, when a junction box in one branch fails, the other branch can independently maintain normal operation, significantly enhancing the system's fault tolerance and maintenance convenience.

[0048] Each junction box is connected in series with connecting cables (such as standard speaker cables / signal cables), or they can be connected wirelessly to form a continuous signal transmission path, so that the audio signal output from the power amplifier box can be transmitted step by step to the subsequent junction boxes. Each junction box is electrically connected to its corresponding audio playback device, ensuring that the signal output from the power amplifier box and transmitted to the junction box via the connecting cable can be distributed and drive the sound or vibration unit of that device, thereby establishing a complete signal path from the centralized power amplifier box to the distributed terminal load.

[0049] Furthermore, to achieve seat-level audio adjustment for each sofa position, this embodiment of the application can also equip each splitter box with an independent control unit. Specifically, each splitter box includes an independent control unit, which is used to adjust the audio signal output by the power amplifier box according to the status parameters corresponding to the sofa position where the splitter box is located, and then send the adjusted audio signal to the audio playback device for playback. The status parameters are used to characterize the operating condition of the sofa position where the splitter box is located.

[0050] The aforementioned independent control unit can further adjust the audio signal from the power amplifier box based on the status parameters corresponding to its location on the sofa, and then send the adjusted signal to the audio playback device of that seat. The status parameters characterize the operating condition of the sofa, and the independent control unit processes the audio signal accordingly to ensure that the signal output to the speaker or vibrator is adapted to the actual operating state of the current sofa, thereby achieving localized adjustment of the playback content.

[0051] Through the above architecture, by setting up a junction box corresponding to each sofa seat in the sofa audio system, and integrating an independent control unit in each junction box, the unified audio signal output by the power amplifier box can be differentiated and readjusted according to the real-time status parameters of each sofa seat. This enables personalized and precise control of the audio output of different seats, thereby solving the technical problem of poor user experience when multiple seats play audio synchronously in multi-seat audio systems in related technologies.

[0052] The following describes the embodiments of this application. Figure 1 The sofa audio system shown will be further described.

[0053] Figure 2 This is a schematic diagram of the architecture of a sofa multi-position audio system based on a centralized power amplifier and a cascaded junction box, according to an embodiment of this application. Figure 2 As shown, after receiving external audio signals, the power amplifier box performs audio processing and power amplification on them. Then, the processed and amplified signals are output to the junction box through multi-core speaker cables. The junction box, as a terminal wiring unit, receives audio and vibration signals from the centralized power amplifier box and distributes these signals locally according to the required full-range channels of the armrest, left channel of the headrest, right channel of the headrest, and bass vibrator channel of the seat. At the same time, it maintains the continuity of the signal transmission path, so that the signals can be transmitted sequentially to the junction box of the next sofa position. Thus, without changing the uniformity of the signal source, the distributed access and cascaded transmission of audio and vibration signals from multiple seats can be achieved.

[0054] The internal modules and working principle of the power amplifier box are as follows.

[0055] In some embodiments of this application, the power amplifier box includes: an audio receiving module, a digital signal processing chip, and a power amplifier module. The audio receiving module is used to receive audio signals output from an audio source. The digital signal processing chip is used to perform channel mapping and frequency division processing on the audio signals according to the current audio mode to generate multi-channel audio signals. The audio mode is used to indicate the channel allocation rules and frequency division parameters of the audio signals. The power amplifier module is used to amplify the audio signals of each channel and send them to each splitter box to drive the corresponding audio playback device.

[0056] Specifically, such as Figure 3 As shown, the amplifier box, serving as the audio processing and power drive center of the entire system, can be installed below the main sofa or in a separate, hidden space. This amplifier box may contain, but is not limited to, the following modules:

[0057] 1) Audio receiving module, used to acquire raw audio signals from audio sources, and can support one or more input methods such as Bluetooth, Wi-Fi, AUX, optical fiber, and HDMI ARC;

[0058] 2) Digital Signal Processing (DSP) chip, used to complete channel mapping and frequency division processing according to preset audio modes, and generate multi-channel audio signals. Its processing functions include, but are not limited to: audio decoding, channel mapping, EQ adjustment, bass crossover, etc. The audio modes may include, but are not limited to: stereo mode or surround sound mode, etc. The channel allocation rules and crossover parameters corresponding to different audio modes may be different. For example, in stereo mode, channel mapping may include: mixing the left and right channels and outputting them to the armrest channel, outputting the left channel to the left channel of the headrest, and outputting the right channel to the right channel of the headrest.

[0059] 3) Power amplifier module (power amplifier array), used for multi-channel digital / analog power amplifiers, can output multiple independent channels of audio signals;

[0060] 4) The main control MCU is used for logic control and communication management. Its functions include, but are not limited to: logic control, mode management, network communication, and user command parsing.

[0061] 5) Wireless communication module, used for wireless networking between multiple amplifier boxes (can utilize Bluetooth Mesh / Wi-Fi / 2.4G proprietary protocol, etc.). This module is used to wirelessly network multiple amplifier boxes, thereby enabling the connection between the sofa in this space and the sofa in the next space.

[0062] 6) Storage module, used to store the device's unique ID, music mode parameter set, and user configuration;

[0063] 7) Power module, used to supply power to the whole machine.

[0064] In this embodiment of the application, the multi-channel signals output from the power amplifier box to the splitter box may include, but are not limited to: full-range main channel signal, left channel signal, right channel signal, subwoofer channel signal, and vibrator channel signal, etc. These signals will be mapped by the splitter box to audio playback devices or vibration units (vibrators) located at different positions on the sofa, as detailed below.

[0065] In some embodiments of this application, audio signals from different channels are used to drive audio playback devices at different locations, and multiple audio playback devices at the same location play audio at the same or different frequencies; the multi-channel audio signals include at least one of the following: a full-range main channel signal, a left channel signal, a right channel signal, and a subwoofer channel signal, wherein the full-range main channel signal is used to drive one or more full-range speakers located at the armrest position of each sofa seat; the left channel signal is used to drive one or more full-range speakers located at the left side of the headrest position of each sofa seat; the right channel signal is used to drive one or more full-range speakers located at the right side of the headrest position of each sofa seat; and the subwoofer channel signal is used to drive one or more subwoofers located at the coffee table of the sofa, wherein the coffee table is located between two adjacent sofa seats.

[0066] In some embodiments of this application, the multi-channel audio signal further includes: a vibrator channel signal, and the sofa audio system further includes: a low-frequency vibrator for converting the audio signal into physical vibrations, and the vibrator channel signal is used to drive one or more low-frequency vibrators located at the bottom and / or backrest of each sofa position.

[0067] Specifically, such as Figure 4 As shown, the multi-core speaker wires output from the power amplifier box (including the armrests, headrest L / R, and vibrator channels required for this seat) are sequentially connected to the junction box and cascaded to the next seat. The local wiring terminals inside the junction box will distribute the channel signals from the power amplifier box to the corresponding sound or vibration unit of this seat.

[0068] For example, such as Figure 5 The sofa shown includes: a main control unit (i.e., an amplifier box) 501, a splitter box 502 installed on each sofa, headrest speakers 503 installed on the left and right sides of the headrest, a 3-inch speaker 504 installed on the armrest of the sofa, a vibrator 505 installed at the bottom of the sofa, and a subwoofer 506 installed on the coffee table. The sofa uses a multi-channel audio signal to precisely map the full-range main channel signal (usually an L+R mix or center channel), left channel signal, right channel signal, and subwoofer channel signal to the audio playback devices on the armrests, left side of the headrest, right side of the headrest, and coffee table. This ensures that the full-range main sound is output uniformly from the speakers on the armrests, the left and right sound fields are presented independently by the speakers on both sides of the headrest, and the low-frequency energy is concentrated and radiated by the subwoofers on the coffee table between adjacent sofa positions. This avoids problems such as blurred sound images and uneven low-frequency distribution caused by chaotic channel allocation. In addition, the oscillator channel signal can also be output to the low-frequency oscillators located at the bottom and / or back of each sofa position, driving the low-frequency oscillators to generate physical vibration feedback that matches the audio content.

[0069] like Figure 6 As shown, Figure 5The specific circuit connection structure of the electric sofa and its audio system shown in the figure ( Figure 6 (Only the circuit connection structure of the leftmost sofa seat and coffee table section is shown in the image). In this embodiment, one or more full-range speakers at the armrest position of the aforementioned sofa seat can be 3-inch full-range speakers; one or more full-range speakers on the left and right sides of the headrest can be 2-inch / 2.5-inch full-range speakers (left and right channels); the aforementioned subwoofer can be independently installed at the coffee table or sofa armrest position, and directly driven from the amplifier box through a dedicated subwoofer channel, or it can be connected through an end junction box. In this embodiment, the subwoofer can be a 6.5-inch / 8-inch subwoofer; at the same time, in this embodiment, an independent bass vibrator can also be installed at the bottom / backrest of each sofa seat, decoupled from the subwoofer signal, and can be adjusted independently.

[0070] With the above configuration, the main armrest speaker provides full-range sound, and the headrest dual speakers create left and right channel separation, forming a near-field stereo sound field centered on the seat, which can create a sense of surround sound and provide users with an immersive experience.

[0071] Since multiple audio playback devices can be deployed at each location in this embodiment, the frequencies of the audio played by multiple audio playback devices at the same location can be adjusted to be the same or different according to actual needs. For example, in this embodiment, each independent channel (left channel as an example) can contain one or more audio signals. When the left channel signal drives multiple full-range speakers at the left side of the headrest of the current sofa, multiple speakers can synchronously output the same music effect on the left channel, or multiple speakers can output different music effects on the left channel. For example, one speaker outputs high frequencies, and another speaker outputs mid frequencies.

[0072] To address the issue of interference between bass frequencies and haptic feedback, which leads to a poor user experience, in this embodiment, the subwoofer and the vibrator can be driven independently. For example, the subwoofer in the coffee table is dedicated to low-frequency hearing, while the vibrator in the seat is dedicated to haptic feedback. Therefore, to achieve the above effect, the digital signal processing chip (DSP) extracts low frequencies from the input audio signal in two channels during channel mapping and frequency division to generate subwoofer channel signals and vibrator channel signals respectively, as detailed below.

[0073] In some embodiments of this application, the digital signal processing chip is further configured to extract a first low-frequency component from the audio signal output from the audio source and to independently equalize and adjust the first low-frequency component to generate a subwoofer channel signal, wherein the first low-frequency component is a low-frequency component in the audio signal whose frequency is lower than a first frequency threshold; and to extract a second low-frequency component from the audio signal and to scale the second low-frequency component with an intensity coefficient to generate an oscillator channel signal, wherein the second low-frequency component is a low-frequency component in the audio signal whose frequency is lower than a second frequency threshold, and the second frequency threshold is less than the first frequency threshold.

[0074] Specifically, the digital signal processing chip can extract a first low-frequency component (e.g., 120Hz) and a second low-frequency component (e.g., 80Hz) from the audio signal, with the second frequency threshold set to be less than the first frequency threshold. This results in a wider low-frequency range (e.g., 20Hz~120Hz) that is output after independent EQ adjustment (independent equalization adjustment) to provide auditory low frequencies. Meanwhile, the oscillator channel focuses only on the ultra-low frequency range (e.g., 20Hz~80Hz), and outputs it after intensity scaling to precisely drive the vibration unit at the bottom or back of the sofa to generate tactile feedback. This achieves frequency domain isolation and functional decoupling between auditory and tactile low frequencies, effectively avoiding the auditory muddiness and tactile interference problems caused by the mixing of low-frequency components in traditional systems.

[0075] The aforementioned independent equalization adjustment includes gain adjustment and filtering for the first low-frequency component, and the aforementioned intensity coefficient scaling includes amplitude ratio adjustment for the second low-frequency component.

[0076] To further enhance the user experience, embodiments of this application can dynamically adjust the first frequency threshold and the second frequency threshold according to the characteristics or type of the current audio, as detailed below.

[0077] In some embodiments of this application, the digital signal processing chip is further configured to determine the audio scene type corresponding to the audio signal output from the audio source, wherein the audio scene type is determined by receiving a user instruction or by analyzing the spectral characteristics of the audio signal, and the audio scene type includes at least one of the following: music scene, movie scene, game scene; based on the audio scene type, a first frequency threshold and / or a second frequency threshold are determined, and the intensity coefficient scaling ratio corresponding to the second low-frequency component under the audio scene type is determined, wherein the first frequency threshold and / or the second frequency threshold are different under different audio scene types, and the intensity coefficient scaling ratio is used to adjust the tactile vibration intensity of the oscillator channel signal.

[0078] Specifically, the digital signal processing chip can identify different audio scene types, such as music, movies, or games, based on the spectral characteristics of the audio source output signal or user-initiated commands. It then dynamically adjusts the first frequency threshold for subwoofer channel signal generation and the second frequency threshold for oscillator channel signal generation. Simultaneously, it adaptively sets the intensity scaling factor of the second low-frequency component according to the scene type, enabling precise separation and weighted processing of low-frequency components in different application scenarios. For example, in music scenes, it enhances low-frequency extension and tactile detail; in movie scenes, it strengthens the immersive experience of explosions or deep sound effects; and in game scenes, it enhances the response intensity of rhythmic vibration feedback. This achieves intelligent collaborative matching of subwoofer and oscillator output parameters with the audio content scene, effectively overcoming the problem of low-frequency response being out of sync with user perception needs caused by traditional systems using fixed crossover thresholds and constant vibration intensity. Ultimately, it achieves personalized, scene-adaptive audio and tactile experience optimization.

[0079] For example, in music scenarios, digital signal processing chips typically set the first frequency threshold in the range of 80Hz to 120Hz and the second frequency threshold in the range of 40Hz to 80Hz, with the intensity scaling factor controlled between 0.4 and 0.6. The advantage of this configuration is that it allows the subwoofer channel to cover the main energy distribution area of ​​the music's fundamental frequency, fully preserving the warm texture and harmonic details of instruments such as the double bass and electric bass. Simultaneously, it allows the oscillator channel to focus on the rhythmic ultra-low frequency components, following the music's rhythm with a soft and delicate vibration, avoiding excessive physical sensation that masks the mid-to-high frequency timbre, thus achieving comfortable immersion during extended listening. In movie scenarios, the first frequency threshold can be appropriately increased to 120Hz to 180Hz, the second frequency threshold to 80Hz to 120Hz, and the intensity scaling factor set at a higher level of 0.7 to 0.9. This expands the subwoofer's low-frequency response width to fully reproduce explosions and impacts. The transient energy of special effects allows the oscillator to respond to ultra-low frequency components across a wider frequency range, enhancing the sense of presence and impact through strong body vibrations. Combined with dynamic range control technology, the oscillator output automatically decreases in dialogue scenarios to avoid interfering with voice clarity, while it releases full power in action scenarios to enhance immersion. In game scenarios, the first frequency threshold can be set between 100Hz and 140Hz, and the second frequency threshold between 60Hz and 100Hz, with the base intensity scaling factor maintained between 0.6 and 0.8. It also supports dynamic adjustment to above 0.85 based on combat events. This design better balances the dual needs of environmental atmosphere rendering and precise operational feedback. It uses moderate low-frequency rendering to create a game atmosphere under normal conditions, and rapidly increases the oscillator intensity to provide immediate feedback when combat events such as continuous explosions or skill releases are detected. Simultaneously, it reduces interference with footstep location by optimizing filter roll-off characteristics, ensuring precise control and fatigue management for players during extended gameplay.

[0080] In addition, each junction box in this application embodiment has a built-in independent control unit (such as MCU) and a storage unit. Therefore, it can receive independent EQ / vibrator intensity parameters sent by the power amplifier box through a single-wire protocol to realize personalized listening experience for each seat. Furthermore, the independent control unit can also independently and adaptively adjust the local speaker / vibrator output of the current sofa seat by analyzing various data collected by the sensors in its corresponding sofa seat, so as to realize seat-level personalized experience with the same sound source but different listening experience. The following is a detailed introduction.

[0081] In this embodiment of the application, the independent control unit (such as MCU) in the junction box can combine data such as pressure sensors and analyze information such as the user's weight / sitting posture to adjust the gain of the oscillator, so as to achieve seat-level personalized adaptive haptic intensity, as follows.

[0082] In some embodiments of this application, the sofa audio system further includes at least one pressure sensor disposed on each sofa position; an independent control unit is further configured to acquire pressure data detected by the pressure sensor and position identification information corresponding to the pressure sensor, and determine a pressure distribution heat map based on the pressure data and position identification information, wherein the position identification information is used to characterize the position of the pressure sensor on the sofa position, and the pressure distribution heat map is used to characterize the spatial distribution of pressure intensity in the area where the user's body contacts the sofa position; based on the pressure distribution heat map, determine the usage status information corresponding to the sofa position, wherein the usage status information includes at least one of the following: whether the sofa position is currently used by a user, the user's weight range, and the user's sitting posture type; if the usage status information indicates that the sofa position is currently used by a user, determine the oscillator gain reference value corresponding to the user's weight range, and supplement the oscillator gain reference value with the gain compensation value corresponding to the user's sitting posture type to obtain a target oscillator gain value; based on the target oscillator gain value, further adjust the oscillator channel signal received by the current sofa position.

[0083] Specifically, multiple pressure sensors can be installed on each sofa to collect pressure data of the area where the user's body contacts the sofa and the corresponding spatial location information in real time. The independent control unit in each junction box can then use this data to construct a pressure distribution heat map that reflects the spatial distribution of pressure intensity, thereby accurately identifying the usage status of the sofa, including whether someone is sitting there, the user's weight range, and the type of sitting posture.

[0084] For example, when the total pressure exceeds a threshold (e.g., 20kg), it can be determined that someone is seated (the vibrator automatically shuts off when no one is seated, saving energy and ensuring safety). Furthermore, the user's weight can be estimated based on the total pressure value, such as lightweight (<60kg), medium-weight (60-80kg), heavyweight (>80kg), etc. At the same time, the sitting posture type (upright sitting, side sitting, leaning back, forward leaning, etc.) can also be identified based on the pressure distribution characteristics (center of mass position, distribution range). For example, when the pressure center of mass offset is > ±5cm, it can be identified as side sitting; when the pressure distribution area is > the upper limit of the threshold, it can be identified as leaning back (large contact area), etc.

[0085] After obtaining information on the user's weight and sitting posture, the independent control unit can retrieve the corresponding oscillator gain reference value from the local memory and dynamically superimpose it with the gain compensation value preset for the sitting posture to generate a target oscillator gain value that adapts to the current user's physiological characteristics. Based on this, the local oscillator channel signal is adjusted in a personalized manner so that the low-frequency vibration intensity is precisely matched with the user's actual weight and sitting posture.

[0086] For example, the specific compensation logic in this embodiment may include: when leaning back, the body is in closer contact with the oscillator, the vibration transmission efficiency increases, and the gain needs to be reduced to avoid being too strong; when leaning forward, the contact is loose, the transmission efficiency decreases, and the gain compensation needs to be increased; when sitting sideways, there is only one-sided contact, the vibration distribution is uneven, and the overall gain can be appropriately reduced.

[0087] The above methods can effectively solve the problem of rigid and uncomfortable vibration experience caused by the inability of existing systems to dynamically adjust haptic feedback according to the user's actual usage status, and realize a personalized and adaptive audio vibration experience, significantly improving the user's immersion and comfort in multi-seat audio systems.

[0088] On the other hand, since different seats are at different distances from the wall, their low-frequency responses also differ. In this embodiment, the independent control unit inside the junction box can also independently calculate and apply a low-frequency room correction filter to compensate for the differences in low-frequency response caused by the different distances between the seats and the wall, thereby achieving adaptive optimization of the seat-level acoustic environment, as detailed below.

[0089] In some embodiments of this application, the sofa audio system further includes at least one microphone disposed on each sofa position; an independent control unit, which is further configured to play a preset test audio signal through an audio playback device corresponding to the sofa position, and to collect the acoustic response signal corresponding to the test audio signal through the microphone, wherein the acoustic response signal is the actual sound pressure signal of the test audio signal reaching the microphone after reflection and absorption by the acoustic environment of the space where the sofa position is located; by analyzing the acoustic response signal, a low-frequency response curve corresponding to the sofa position is determined, wherein the low-frequency response curve is used to characterize the amplitude response characteristics of the low-frequency sound pressure at the location of the sofa position as a function of frequency; based on the low-frequency response curve, a low-frequency compensation curve corresponding to the sofa position is generated, wherein the low-frequency compensation curve is used to indicate the gain adjustment amount required to equalize the peak or peak-valley caused by the room boundary effect in the low-frequency response curve; and based on the low-frequency compensation curve, the low-frequency signal in the audio signal received by the sofa position is compensated.

[0090] Specifically, at specific times (such as when the sofa is first installed, every month / quarter, or when a significant deviation from the historical benchmark is detected in the frequency response), the independent control unit in each junction box can drive the corresponding audio playback device to play preset test audio signals, including but not limited to: log sweep sine wave for accurate measurement of low-frequency response curve; pink noise for quick evaluation of overall frequency response; and single-frequency sine wave sequence for fine measurement of key frequency points.

[0091] Simultaneously, it is necessary to acquire the actual sound pressure response signal formed after the test audio signal is reflected and absorbed by the acoustic environment of the space where the sofa is located through a microphone. Then, the acoustic response signal is analyzed to construct a low-frequency response curve characterizing the characteristics of low-frequency sound pressure as a function of frequency. For example, the low-frequency response curve can be obtained by performing a fast Fourier transform on the microphone signal, calculating the transfer function, and then extracting the amplitude frequency response and phase frequency response.

[0092] Subsequently, based on the sound pressure peaks or valleys caused by room boundary effects in the low-frequency response curve (such as the low-frequency boundary gain peak caused by the distance between the sofa and the wall being less than a preset distance threshold, or the comb filter valley caused by sound wave interference, etc.), acoustic problems caused by the distance between the seat and the wall can be identified, a targeted low-frequency compensation curve can be generated, and the low-frequency component of the audio signal input to the sofa can be dynamically adjusted accordingly. This effectively balances the inconsistency in low-frequency response caused by position differences among the sofas, realizes personalized audio compensation based on the actual acoustic environment, and improves the listening experience and immersion of users in different seats.

[0093] In addition, the independent control unit inside the junction box in this embodiment can also determine the head position (height, offset, etc.) of the user on the corresponding sofa position through pressure / infrared sensors, calculate the L / R delay difference of the headrest in real time, and make adjustments to ensure that the sound image is always centered when the user's head moves, as detailed below.

[0094] In some embodiments of this application, the sofa audio system further includes: at least one pressure sensor disposed on each sofa position, and infrared sensors disposed on both sides of the headrest of each sofa position; an independent control unit, further configured to acquire pressure data detected by the pressure sensor and distance data detected by the infrared sensor, and determine the head position information of the user on the sofa position based on the pressure data and distance data, wherein the pressure data is used to determine the contact state and contact area between the user's head and the headrest, and the distance data is used to determine the offset distance of the user's head relative to the left and right sides of the headrest; based on the head position information, determine the acoustic path difference from the full-range speakers disposed on the left and right sides of the headrest to the user's ears, wherein the acoustic path difference is used to characterize the difference in the propagation distance of sound from the left and right full-range speakers to the user's ears caused by the user's head offset; based on the acoustic path difference, determine the compensation delay amount corresponding to the full-range speakers disposed on the left and right sides of the headrest, and further adjust the left channel signal and / or right channel signal based on the compensation delay amount to ensure that the sound image is located in the center of the user's head.

[0095] Specifically, pressure sensors and infrared sensors on both sides of the headrest can be installed on each sofa position to collect the contact status of the user's head with the headrest and the left and right offset distance, respectively. The independent control unit can determine whether the user's head is in the headrest area and its contact range based on the pressure data. Combined with the precise distance between the ears and the sides of the headrest obtained by the infrared sensors, the real-time position information of the user's head in three-dimensional space can be determined. Furthermore, based on this position information, the acoustic path difference from the headrest L / R speaker to the ears can be calculated, thereby accurately identifying the difference in propagation delay between the left and right channels caused by head offset.

[0096] Subsequently, the independent control unit dynamically generates the corresponding compensation delay based on the acoustic path difference and precisely adjusts the delay of the left or right channel audio signal, so that the left and right sound channels arrive at the user's ears synchronously. This effectively corrects the sound image shift caused by the user's sitting posture shift, ensuring that the sound image is always stably positioned in the center of the user's head. This significantly improves the immersion and positioning accuracy of the stereo field in multi-seat environments, and solves the technical defect of existing systems that cannot adaptively adjust the audio signal according to individual sitting posture, resulting in inaccurate sound images.

[0097] In this embodiment, the independent control unit can also perform smoothing filtering on the compensation delay amount to limit the delay change amplitude per unit time and avoid sudden changes in sound image; and when the pressure data indicates that the user's head has left the headrest, the independent control unit can restore the compensation delay amount to the default value.

[0098] This application's solution involves setting up a junction box corresponding to each sofa seat in the sofa audio system, and integrating an independent control unit within each junction box. This allows the unified audio signal output from the power amplifier box to be readjusted differently based on the real-time status parameters of each sofa seat, thereby achieving personalized and precise control of the audio output for different seats. This structural design breaks through the limitations of traditional multi-seat audio systems that use a unified signal output in related technologies. It enables each audio playback device to independently optimize audio characteristics such as volume, equalization, or delay according to the actual usage environment of its seat. This effectively solves the technical problem that multi-seat audio systems in related technologies cannot achieve personalized audio adjustment based on the operating conditions of the sofa seats, thereby improving the consistency and comfort of the user's listening experience and enhancing the system's intelligent response capabilities.

[0099] According to an embodiment of this application, an embodiment of an audio adjustment method is also provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0100] Figure 7 This is a schematic diagram of an audio adjustment method flow according to an embodiment of this application, such as... Figure 7 As shown, the method includes the following steps:

[0101] Step S702: Obtain the status parameters corresponding to the sofa position where the junction box is located, wherein the status parameters are used to characterize the operating conditions of the sofa position where the junction box is located.

[0102] Step S704: Based on the status parameters, adjust the audio signal after audio processing and power amplification by the power amplifier box, and send the adjusted audio signal to the audio playback device for playback.

[0103] Optionally, the sofa audio system also includes at least one pressure sensor disposed on each sofa position; adjusting the audio signal after audio processing and power amplification by the power amplifier box includes: acquiring pressure data detected by the pressure sensor and the corresponding position identification information of the pressure sensor, and determining a pressure distribution heat map based on the pressure data and position identification information, wherein the position identification information is used to characterize the position of the pressure sensor on the sofa position, and the pressure distribution heat map is used to characterize the spatial distribution of pressure intensity in the area where the user's body contacts the sofa position; determining the usage status information corresponding to the sofa position based on the pressure distribution heat map, wherein the usage status information includes at least one of the following: whether the sofa position is currently used by a user, the user's weight range, and the user's sitting posture type; if the usage status information indicates that the sofa position is currently used by a user, determining the oscillator gain reference value corresponding to the user's weight range, and supplementing the oscillator gain reference value with the gain compensation value corresponding to the user's sitting posture type to obtain the target oscillator gain value; and further adjusting the oscillator channel signal received by the current sofa position based on the target oscillator gain value.

[0104] Optionally, the sofa audio system also includes at least one microphone located at each sofa position; adjusting the audio signal after audio processing and power amplification by the power amplifier box includes: playing a preset test audio signal through the audio playback device corresponding to the sofa position, and collecting the acoustic response signal corresponding to the test audio signal through the microphone, wherein the acoustic response signal is the actual sound pressure signal reaching the microphone after the test audio signal is reflected and absorbed by the acoustic environment of the space where the sofa position is located; determining the low-frequency response curve corresponding to the sofa position by analyzing the acoustic response signal, wherein the low-frequency response curve is used to characterize the amplitude response characteristics of the low-frequency sound pressure at the location of the sofa position as a function of frequency; generating a low-frequency compensation curve corresponding to the sofa position based on the low-frequency response curve, wherein the low-frequency compensation curve is used to indicate the amount of gain adjustment required to equalize the peak or peak-valley caused by the room boundary effect in the low-frequency response curve; and compensating the low-frequency signal in the audio signal received by the sofa position based on the low-frequency compensation curve.

[0105] Optionally, the sofa audio system further includes: at least one pressure sensor disposed on each sofa position, and infrared sensors disposed on both sides of the headrest of each sofa position; adjusting the audio signal after audio processing and power amplification by the power amplifier box includes: acquiring pressure data detected by the pressure sensor and distance data detected by the infrared sensor, and determining the head position information of the user on the sofa position based on the pressure data and distance data, wherein the pressure data is used to determine the contact state and contact area between the user's head and the headrest, and the distance data is used to determine the offset distance of the user's head relative to the left and right sides of the headrest; determining the acoustic path difference from the full-range speakers disposed on the left and right sides of the headrest to the user's ears based on the head position information, wherein the acoustic path difference is used to characterize the difference in the propagation distance of sound from the left and right full-range speakers to the user's ears due to the offset of the user's head; determining the compensation delay amount corresponding to the full-range speakers disposed on the left and right sides of the headrest based on the acoustic path difference, and further adjusting the left channel signal and / or right channel signal based on the compensation delay amount to ensure that the sound image is located in the center of the user's head.

[0106] This application solution integrates independent control units in each junction box, and performs localized reprocessing of the original audio signal from the centralized power amplifier box based on the status parameters of the respective sofa position (such as seat tilt angle, human contact detection, etc.). This enables fine adjustments to audio frequency response, gain, or vibration intensity, thereby improving the listening experience adaptability for individual users in different sitting postures or usage scenarios while maintaining the consistency of phase and delay across the entire system. It also avoids problems such as excessive volume or low-frequency overload caused by uniform output, and enhances the consistency of personalized experience in multi-user environments.

[0107] It should be noted that the audio adjustment method provided in this embodiment can be applied to... Figure 1 Therefore, the relevant explanations and descriptions of the sofa audio system shown above also apply to the embodiments of this application, and will not be repeated here.

[0108] The methods and embodiments provided in this application can be executed on mobile terminals, computer terminals, or similar computing devices. Figure 8 A hardware block diagram of a computer terminal (or electronic device) for implementing an audio adjustment method is shown. Figure 8As shown, a computer terminal 80 (or electronic device) may include one or more processors 802 (shown as 802a, 802b, ..., 802n in the figure) 802 (processor 802 may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.), a memory 804 for storing data, and a transmission device 806 for communication functions. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of a BUS bus), a network interface, a power supply, and / or a camera. Those skilled in the art will understand that... Figure 8 The structure shown is for illustrative purposes only and does not limit the structure of the aforementioned electronic device. For example, the computer terminal 80 may also include... Figure 8 The more or fewer components shown, or having the same Figure 8 The different configurations shown.

[0109] It should be noted that the aforementioned one or more processors 802 and / or other data processing circuits are generally referred to herein as "data processing circuits". These data processing circuits may be embodied, in whole or in part, in software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuits may be a single, independent processing module, or may be wholly or partially integrated into any other element within the computer terminal 80 (or electronic device). As involved in the embodiments of this application, the data processing circuits serve as a processor control mechanism (e.g., selection of a variable resistor termination path connected to an interface).

[0110] The memory 804 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the audio adjustment method in this embodiment. The processor 802 executes various functional applications and data processing by running the software programs and modules stored in the memory 804, thereby realizing the aforementioned audio adjustment method. The memory 804 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 804 may further include memory remotely located relative to the processor 802, and these remote memories can be connected to the computer terminal 80 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0111] The transmission device 806 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of the computer terminal 80. In one example, the transmission device 806 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device 806 may be a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0112] The display can be, for example, a touchscreen liquid crystal display (LCD), which allows the user to interact with the user interface of a computer terminal 80 (or electronic device).

[0113] This application embodiment also provides a non-volatile storage medium, which includes a stored computer program. The device containing the non-volatile storage medium executes the following audio adjustment method by running the computer program: obtaining the status parameters corresponding to the sofa position where the splitter box is located, wherein the status parameters are used to characterize the operating conditions of the sofa position where the splitter box is located; adjusting the audio signal after audio processing and power amplification by the power amplifier box according to the status parameters; and sending the adjusted audio signal to the audio playback device for playback.

[0114] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the audio adjustment method described in various embodiments of this application: obtaining the status parameters corresponding to the sofa position where the splitter box is located, wherein the status parameters are used to characterize the operating conditions of the sofa position where the splitter box is located; adjusting the audio signal after audio processing and power amplification by the power amplifier box according to the status parameters, and sending the adjusted audio signal to the audio playback device for playback.

[0115] According to an embodiment of this application, an embodiment of a music sofa is also provided. The music sofa includes a sofa body, which contains multiple sofa seats. The sofa body is provided with an interactive controller, a power amplifier box, multiple split boxes corresponding to each sofa seat, and an audio playback device. The power amplifier box is connected to any one or more of the at least one split box, the split boxes are communicatively connected to each other, and each split box is connected to its corresponding audio playback device.

[0116] A power amplifier box is used to process and amplify the received audio signals before sending them to various junction boxes.

[0117] A splitter box is used to transmit the audio signals output from the power amplifier box to their respective audio playback devices for playback.

[0118] The interactive controller communicates with the amplifier box. The interactive controller receives user input commands and generates control signals based on the user input commands, which are then sent to the amplifier box to control the audio playback function.

[0119] For example, the music sofa in this embodiment may include three sofa seats. Each sofa seat is equipped with a junction box and a corresponding audio playback device (including full-range speakers on the left and right sides of the headrest, full-range speakers on the armrests, and a subwoofer on the seat). The power amplifier box is located below the main sofa seat and is connected to the first junction box via a multi-core audio cable. The three junction boxes are connected in series to form a signal transmission link. The power amplifier box receives audio signals from Bluetooth or optical fiber input, and after decoding, frequency division, and equalization processing by the internal DSP chip, it outputs five independent signals (left headrest, right headrest, armrest, subwoofer, and subwoofer) through a multi-channel power amplifier module. These signals are transmitted sequentially to each junction box via cascaded multi-core cables. Each junction box extracts the channel signal required for its seat and drives the corresponding speaker and subwoofer to produce sound. An interactive controller is embedded in the sofa armrest. After the user selects the cinema mode via the touch screen, the interactive controller sends control commands to the power amplifier box, which then adjusts the DSP parameters to optimize the surround sound effect and increase the subwoofer channel gain.

[0120] In some embodiments of this application, the music sofa also includes a main control box. The interactive controller and the power amplifier box establish a communication connection through the main control box, and the main control box has a built-in sofa function control module or is communicatively connected to the sofa function control box. The main control box is used to receive control signals sent by the interactive controller and send the control signals to the power amplifier box to realize the control of audio playback function, and / or send the control signals to the sofa function control module or the sofa function control box to realize the control of sofa functions, wherein the sofa functions include at least one of the following: sofa posture adjustment function, airbag massage function, and seat heating function.

[0121] For example, the main control box mentioned above can be a Bluetooth control box, that is, a control box that can communicate via the Bluetooth protocol. It can have built-in sofa control functionality (i.e., a built-in sofa function control module), or it can be an external sofa function control box, allowing the interactive controller to establish a communication connection with the sofa function control box via Bluetooth. In this embodiment, user input commands may include, but are not limited to: volume adjustment commands input via knob rotation, play / pause commands input via knob pressing, function mode switching commands input via screen touch, backrest angle and footrest angle memory and recall commands input via memory button, function start / stop commands input via massage / heating button, and audio source switching and device networking commands input via Bluetooth / cascade button.

[0122] For example, the interactive controller can establish wireless communication with the main control box using Bluetooth Low Energy protocol. The main control box integrates a protocol conversion module, which converts the received Bluetooth protocol control signal into a CAN bus protocol signal and distributes it to two branches. When the user adjusts the volume using the interactive controller's knob, the main control box receives the volume adjustment command. On one hand, it converts the command into an analog voltage control signal and sends it to the volume control port of the power amplifier box to achieve smooth audio gain adjustment. On the other hand, it simultaneously forwards the command to the sofa function control box to maintain the consistency of the system state. When the user turns on the seat heating function, the main control box sends the heating start / stop command to the sofa function control box, which drives the heating pad power supply module. This centralized protocol conversion and signal distribution mechanism eliminates the need for the interactive controller to adapt multiple communication protocols for different functional modules, simplifying the hardware design complexity. At the same time, the main control box, as an independent module, facilitates subsequent protocol upgrades and function expansion, improving the system's maintainability and compatibility.

[0123] In addition, the embodiments of this application can also receive and aggregate the status information fed back by the power amplifier box and the sofa function control box, and forward it to the interactive controller for analysis and / or display, as follows.

[0124] In some embodiments of this application, the main control box is also used to receive audio playback status information fed back by the power amplifier box and / or sofa function status information fed back by the sofa function control box, and send the audio playback status information and / or sofa function status information to the interactive controller.

[0125] For example, the power amplifier box monitors the output status of each channel in real time (including output level, temperature, and overload protection status), and reports the audio playback status information to the main control box via the UART interface. The sofa function control box collects the current posture angle of the seat (backrest tilt angle 35 degrees, footrest extension length 20 cm), the surface temperature of the heating pad 42 degrees Celsius, and the current working mode of the airbag massage is lumbar wave massage. This information is aggregated by the main control box and sent to the interactive controller via Bluetooth. When the interactive controller includes a display module or status indicator module, the user can grasp all the function statuses through the screen without getting up to observe the actual sofa. This centralized collection, aggregation, and visualization of information improves the intuitiveness and convenience of human-computer interaction and reduces the user's cognitive load and operating threshold.

[0126] As an optional implementation, the interactive controller in this application embodiment may include: a touch screen and a hinge mechanism, wherein the touch screen is angle-adjustable through the hinge mechanism, the touch screen has a folded state and a display state, and the touch screen is used to display current audio playback information and / or various sofa function states.

[0127] Specifically, in this embodiment, the interactive controller can be installed at the front end of the sofa armrest, and its touch screen is connected to the controller base via a damping hinge. The user can apply external force or issue a command to rotate the screen around the hinge (manual or electric control is possible). When the user is seated on the sofa, the screen can be unfolded to a certain angle with the horizontal plane (e.g., 60 degrees). Figure 9 As shown, the screen is currently facing the user's face for easy touch operation and information reading. When the user gets up or needs to save space, the display screen can be folded parallel to the armrest surface, as shown. Figure 10 As shown, the screen can either maintain its original display information or enter a sleep state to avoid accidental damage. The hinge mechanism has a multi-positioning structure that can stably hover at three positions: 0 degrees (folded), 30 degrees (view from above), and 60 degrees (view from the front). This angle-adjustable mechanical structure adapts to the different needs of users with different heights, sitting postures, and usage scenarios. While ensuring ease of operation, it also takes into account space utilization efficiency and equipment protection, thus improving the applicability and durability of the product.

[0128] In addition, the embodiment of this application can also realize the function of linking audio scene with airbag massage, as follows.

[0129] In some embodiments of this application, the user input instruction includes: a first control instruction, wherein the first control instruction is used to set the audio scene type corresponding to the audio playback and to set the airbag massage function to be activated in conjunction with the audio playback; a main control box, which, upon receiving a control signal generated based on the first control instruction, determines the target airbag massage mode according to the audio scene type indicated by the first control instruction, and controls the airbag massage control box to perform airbag inflation and deflation operations according to the massage parameters corresponding to the target airbag massage mode, wherein different audio scene types correspond to different airbag massage modes, and different airbag massage modes correspond to different massage parameters, which include at least one of the following: airbag inflation and deflation frequency, airbag inflation and deflation intensity, airbag inflation and deflation timing mode, and airbag action area.

[0130] Specifically, users can select a viewing scene via the interactive controller's touchscreen and check the airbag massage linkage option to generate the first control command. Upon receiving this command, the main control box parses the audio scene type as viewing mode and then calls the locally stored viewing mode massage parameter configuration: the airbag inflation / deflation frequency is set to 0.5 Hz (corresponding to a slow rhythm of 30 times per minute), the airbag inflation / deflation intensity is set to 0.8 (80% of maximum pressure), the airbag inflation / deflation timing mode is set to pulse mode (rapid inflation for 0.3 seconds, followed by a 1-second hold before slow deflation), and the airbag action area is set to synchronized application to both the back and waist areas. When the amplifier box detects a low-frequency transient event (such as an explosion sound effect) in the input audio, it sends a trigger signal to the airbag massage control box via the main control box. The airbag massage control box immediately drives the air pump at 0... The back airbags are rapidly inflated at an intensity of 0.8, giving the user a tactile impact as they hear an explosion and feel pressure on their back. After the event, the inflator automatically returns to a slow, wave-like rhythm of 0.5 Hz. If the user switches to a music scene, the main control box automatically adjusts the parameters to a 1.5 Hz inflation / deflation frequency (90 times per minute, matching the rhythm of typical pop music), an intensity of 0.5 Hz, a wave pattern (inflating and deflation sequentially to create a sense of flow), and a single area on the waist, synchronizing the massage rhythm with the music beat, causing the body to undulate slightly with the rhythm. This dynamic mapping of airbag massage parameters driven by audio characteristics deeply couples auditory and tactile sensations in terms of time and intensity, creating an immersive entertainment experience that transcends a single sensory channel. At the same time, the scenario-based parameter presets avoid the hassle of manual adjustment by the user, achieving a balance between personalization and convenience.

[0131] Simultaneously, real-time feature extraction of audio signals can generate airbag massage parameters that are synchronized with music. For example, the amplifier box can convert rhythm signals into massage frequency commands, synchronizing the airbag inflation and deflation cycle with the music beat, mapping low-frequency energy intensity to massage intensity, and achieving an immersive experience where the body moves in rhythm with the music; when the music enters a climax, the low-frequency transient density exceeds the threshold, triggering a pulse mode for a rapid response, simulating the impact of the music beat; when the music transitions to a soothing section, it automatically switches to a wave mode, creating a relaxing atmosphere with a slow, undulating inflation and deflation rhythm.

[0132] Alternatively, in a movie-watching scenario, the amplifier box can extract low-frequency transient events (explosions, impacts, earthquakes, etc.) and convert the transient peaks into pulse-type massage trigger signals, causing the airbags to inflate rapidly at the moment the event occurs, creating a push-back sensation. The airbags automatically deflate and return to normal between events, enhancing the immersive experience through the temporal alignment of touch and hearing. For continuous engine roars or ambient bass, it switches to low-frequency follow mode, making the airbag pressure positively correlated with the subwoofer sound pressure level, creating a continuous immersive and enveloping feeling.

[0133] It should be noted that the music sofa provided in this embodiment may include Figure 1The sofa audio system shown is operational. Figure 7 The audio adjustment method shown above is also applicable to the embodiments of this application, and will not be repeated here.

[0134] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0135] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0136] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0137] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0138] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0139] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0140] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A sofa audio system, characterized in that, The sofa audio system includes: an amplifier box, at least one splitter box, and an audio playback device; each sofa position in the sofa corresponds to one of the splitter boxes; the amplifier box is connected to any one or more of the at least one splitter box, the splitter boxes are communicatively connected to each other, and each splitter box is connected to its corresponding audio playback device. The power amplifier box is used to process and amplify the received audio signal before sending it to each of the splitter boxes. The splitter box is used to transmit the audio signal output by the power amplifier box to the corresponding audio playback device for playback.

2. The sofa audio system according to claim 1, characterized in that, The power amplifier box includes: an audio receiving module, a digital signal processing chip, and a power amplifier module, wherein... The audio receiving module is used to receive audio signals output from an audio source; The digital signal processing chip is used to perform channel mapping and frequency division processing on the audio signal according to the current audio mode to generate a multi-channel audio signal, wherein the audio mode is used to indicate the channel allocation rules and frequency division parameters of the audio signal. The power amplifier module is used to amplify the audio signals from each channel and then send them to each of the splitter boxes to drive the corresponding audio playback devices.

3. The sofa audio system according to claim 2, characterized in that, The audio signals from different channels are used to drive audio playback devices at different locations, and the audio played by multiple audio playback devices at the same location may have the same or different frequencies; the multi-channel audio signals include at least one of the following: full-range main channel signal, left channel signal, right channel signal, and subwoofer channel signal, wherein, The full-range main channel signal is used to drive one or more full-range speakers located at the armrest position of each sofa seat; The left channel signal is used to drive one or more full-range speakers located on the left side of the headrest in each sofa position; The right channel signal is used to drive one or more full-range speakers located on the right side of the headrest in each sofa position; The subwoofer channel signal is used to drive one or more subwoofers positioned at the coffee table of the sofa, wherein the coffee table is positioned between two adjacent sofa positions.

4. The sofa audio system according to claim 3, characterized in that, The multi-channel audio signal also includes: a vibrator channel signal. The sofa audio system further includes: a low-frequency vibrator for converting the audio signal into physical vibration. The vibrator channel signal is used to drive one or more low-frequency vibrators located at the bottom and / or backrest of each sofa position.

5. The sofa audio system according to claim 4, characterized in that, The digital signal processing chip is also used for A first low-frequency component is extracted from the audio signal output from the audio source, and the first low-frequency component is independently equalized to generate the subwoofer channel signal, wherein the first low-frequency component is a low-frequency component in the audio signal whose frequency is lower than a first frequency threshold; and, The second low-frequency component is extracted from the audio signal and the intensity coefficient of the second low-frequency component is scaled to generate the oscillator channel signal, wherein the second low-frequency component is a low-frequency component in the audio signal whose frequency is lower than a second frequency threshold, and the second frequency threshold is less than the first frequency threshold.

6. The sofa audio system according to claim 5, characterized in that, The digital signal processing chip is also used for The audio scene type corresponding to the audio signal output from the audio source is determined, wherein the audio scene type is determined by receiving a user instruction or by analyzing the spectral characteristics of the audio signal, and the audio scene type includes at least one of the following: music scene, movie scene, game scene; Based on the audio scene type, a first frequency threshold and / or a second frequency threshold are determined, and the intensity coefficient scaling ratio corresponding to the second low-frequency component under the audio scene type is determined, wherein the first frequency threshold and / or the second frequency threshold are different under different audio scene types, and the intensity coefficient scaling ratio is used to adjust the tactile vibration intensity of the oscillator channel signal.

7. The sofa audio system according to claim 1, characterized in that, Each of the junction boxes contains an independent control unit. The independent control unit is used to adjust the audio signal output by the power amplifier box according to the status parameters corresponding to the sofa position where the junction box is located, and to send the adjusted audio signal to the audio playback device for playback. The status parameters are used to characterize the operating condition of the sofa position where the junction box is located.

8. The sofa audio system according to claim 7, characterized in that, The sofa audio system also includes at least one pressure sensor installed on each sofa seat; the independent control unit is further used for The pressure data detected by the pressure sensor and the location identification information corresponding to the pressure sensor are obtained, and a pressure distribution heat map is determined based on the pressure data and the location identification information. The location identification information is used to characterize the position of the pressure sensor on the sofa, and the pressure distribution heat map is used to characterize the spatial distribution of pressure intensity in the area where the user's body contacts the sofa. Based on the pressure distribution heat map, the usage status information corresponding to the sofa position is determined, wherein the usage status information includes at least one of the following: whether the sofa position is currently in use by a user, the user's weight range, and the user's sitting posture type; When the usage status information indicates that the sofa position is currently in use by a user, a reference value for oscillator gain corresponding to the user's weight range is determined, and a gain compensation value corresponding to the user's sitting posture type is used to supplement the reference value for oscillator gain to obtain the target oscillator gain value. Based on the target oscillator gain value, the oscillator channel signal received at the current sofa position is further adjusted, wherein the oscillator channel signal is used to drive one or more low-frequency oscillators located at the bottom and / or backrest of each sofa position.

9. The sofa audio system according to claim 7, characterized in that, The sofa audio system also includes at least one microphone located on each sofa seat; the independent control unit is further used for A preset test audio signal is played through the audio playback device corresponding to the sofa position, and the acoustic response signal corresponding to the test audio signal is collected through the microphone. The acoustic response signal is the actual sound pressure signal of the test audio signal after being reflected and absorbed by the acoustic environment of the space where the sofa position is located and reaching the microphone. By analyzing the acoustic response signal, the low-frequency response curve corresponding to the sofa position is determined, wherein the low-frequency response curve is used to characterize the amplitude response characteristics of the low-frequency sound pressure at the location of the sofa position as a function of frequency. Based on the low-frequency response curve, a low-frequency compensation curve corresponding to the sofa position is generated, wherein the low-frequency compensation curve is used to indicate the amount of gain adjustment required to equalize and compensate for the peak or valley caused by the room boundary effect in the low-frequency response curve. Based on the low-frequency compensation curve, the low-frequency signal in the audio signal received by the sofa position is compensated.

10. The sofa audio system according to claim 7, characterized in that, The sofa audio system also includes: at least one pressure sensor installed on each sofa seat, and infrared sensors installed on both sides of the headrest of each sofa seat; the independent control unit is further used for The system acquires pressure data detected by the pressure sensor and distance data detected by the infrared sensor, and determines the head position information of the user on the sofa based on the pressure data and the distance data. The pressure data is used to determine the contact state and contact area between the user's head and the headrest, and the distance data is used to determine the offset distance of the user's head relative to the left and right sides of the headrest. Based on the head position information, the acoustic path difference between the full-range speakers located on the left and right sides of the headrest and the user's ears is determined. The acoustic path difference is used to characterize the difference in the propagation distance of sound from the left and right full-range speakers to the user's ears due to the user's head displacement. Based on the acoustic path difference, the compensation delay amount corresponding to the full-range speakers set on the left and right sides of the headrest is determined, and the left channel signal used to drive the full-range speaker on the left side of the headrest and / or the right channel signal used to drive the full-range speaker on the right side of the headrest are further adjusted according to the compensation delay amount to ensure that the sound image is located in the center of the user's head.

11. An audio adjustment method applied to a sofa audio system, characterized in that, The sofa audio system includes: an amplifier box, at least one splitter box, and an audio playback device; each sofa seat in the sofa corresponds to one of the splitter boxes; the amplifier box is connected to any one or more of the at least one splitter box, the splitter boxes are communicatively connected to each other, and each splitter box is connected to its corresponding audio playback device; the method includes: Obtain the status parameters corresponding to the sofa position where the junction box is located, wherein the status parameters are used to characterize the operating conditions of the sofa position where the junction box is located; Based on the state parameters, the audio signal after audio processing and power amplification by the power amplifier box is adjusted, and the adjusted audio signal is sent to the audio playback device for playback.

12. A non-volatile storage medium, characterized in that, The non-volatile storage medium includes a stored computer program, wherein the device containing the non-volatile storage medium executes the audio adjustment method of claim 11 by running the computer program.

13. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the audio adjustment method of claim 11.

14. A music sofa, comprising a sofa body, wherein the sofa body includes a plurality of sofa seats, characterized in that, The sofa body includes: an interactive controller, an amplifier box, multiple split boxes corresponding to each sofa position, and an audio playback device. The amplifier box is connected to any one or more of the at least one split box, the split boxes are communicatively connected to each other, and each split box is connected to its corresponding audio playback device. The power amplifier box is used to process and amplify the received audio signal before sending it to each of the splitter boxes. The splitter box is used to transmit the audio signal output by the power amplifier box to the corresponding audio playback device for playback; The interactive controller is communicatively connected to the amplifier box. The interactive controller is used to receive user input commands and generate control signals based on the user input commands, which are then sent to the amplifier box to control the audio playback function.

15. The music sofa according to claim 14, characterized in that, The music sofa also includes a main control box. The interactive controller and the amplifier box establish a communication connection through the main control box. The main control box has a built-in sofa function control module or is connected to the sofa function control box. The main control box is used to receive the control signal sent by the interactive controller and send the control signal to the power amplifier box to control the audio playback function, and / or send the control signal to the sofa function control module or the sofa function control box to control the sofa function, wherein the sofa function includes at least one of the following: sofa posture adjustment function, airbag massage function, and seat heating function.

16. The music sofa according to claim 15, characterized in that, The main control box is also used to receive audio playback status information fed back by the power amplifier box and / or sofa function status information fed back by the sofa function control box, and send the audio playback status information and / or the sofa function status information to the interactive controller.

17. The music sofa according to claim 16, characterized in that, The interactive controller includes a touch screen and a hinge mechanism. The touch screen is angle-adjustable via the hinge mechanism. The touch screen has a folded state and a display state. The touch screen is used to display current audio playback information and / or the status of various sofa functions.

18. The music sofa according to claim 15, characterized in that, The user input instructions include: a first control instruction, wherein the first control instruction is used to set the audio scene type corresponding to the audio playback, and to set the airbag massage function to be activated in conjunction with the audio playback; The main control box is used to, upon receiving a control signal generated based on the first control command, determine a target airbag massage mode according to the audio scene type indicated by the first control command, and control the airbag massage control box to perform airbag inflation and deflation operations according to the massage parameters corresponding to the target airbag massage mode. Different audio scene types correspond to different airbag massage modes, and the massage parameters corresponding to different airbag massage modes are different. The massage parameters include at least one of the following: airbag inflation and deflation frequency, airbag inflation and deflation intensity, airbag inflation and deflation timing mode, and airbag action area.

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