Audio system control method, device and system

Abstract

The invention discloses an audio system control method, device and system, relates to the technical field of wireless communication, and is applied to an audio system comprising an audio wireless receiving device and a plurality of active sound boxes in wireless communication connection with the audio wireless receiving device. The audio wireless receiving device is used for acquiring a first sound signal, and sending the first sound signal to a plurality of active sound boxes through a first wireless link in a one-transmitting-multiple-receiving mode of analog broadcasting, so that at least two active sound boxes receive the same sound signal and output a corresponding second sound signal. Meanwhile, the audio wireless receiving device obtains a control signal used for adjusting the audio parameters of the plurality of active sound boxes, and sends corresponding audio control information to the plurality of active sound boxes through a second wireless link independent of the first wireless link, so that the plurality of active sound boxes adjust the audio parameters based on the same audio control information. And head-to-tail delay generated by a plurality of sound boxes in a wireless cascade mode is avoided.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a control method, apparatus, and system for an audio system. Background Technology

[0002] Most existing multi-active speaker wireless audio systems rely on digital wireless communication technology for audio signal transmission and control. For example, audio data is sent to multiple active speakers as a digital data stream via Bluetooth or Wi-Fi. However, in practical applications, this type of solution usually requires encoding, packetizing, buffering, and reassembling of the audio signal. This can easily introduce unavoidable transmission delays in multi-device connections or complex network environments. Especially in scenarios where real-time wireless microphones are used with multiple active speakers simultaneously, significant microphone latency, audio-visual asynchrony, or echo from multiple active speakers can easily occur, making it difficult to meet the requirements of high-real-time sound reinforcement applications.

[0003] On the other hand, when adjusting parameters such as volume, sound effects, or reverb of multiple active speakers, existing technologies typically couple audio signal transmission and audio parameter control within the same wireless link. When audio parameters need adjustment, this often consumes bandwidth or processing resources of the audio transmission link, easily causing audio interruptions, jitter, or delays, thus affecting the overall playback quality. In multi-active speaker scenarios, if control commands are sent to each active speaker individually, inconsistent control timing may lead to asynchronous parameter adjustments among the active speakers, thus affecting the consistency of the listening experience.

[0004] In addition, different active speakers often differ in hardware structure, power configuration or acoustic characteristics. Even if they receive the same audio signal and control commands, the lack of a reasonable processing mechanism may lead to inconsistent actual playback effects, further reducing the overall audio experience of a multi-active speaker system.

[0005] Therefore, existing technologies urgently need a new audio system control method that can ensure the real-time wireless transmission of audio signals while achieving unified control of audio parameters of multiple active speakers, avoiding mutual interference between audio signal transmission and parameter control, and maintaining consistent playback effects in multi-active speaker scenarios, so as to meet the practical application requirements for low-latency and high-consistency wireless sound reinforcement. Summary of the Invention

[0006] The main purpose of this application is to provide a control method, device, and system for an audio system, which aims to solve the technical problem of high sound output delay in multi-active speaker systems after audio input.

[0007] To achieve the above objectives, this application provides a control method for an audio system, applied to an audio system including an audio wireless receiving device and an active speaker wirelessly connected to the audio wireless receiving device, the control method comprising: The audio wireless receiving device broadcasts the acquired first sound signal to the active speaker via a first wireless link in a simulated broadcast one-to-many manner, so that at least two active speakers receive the same first sound signal and output the corresponding second sound signal; The audio wireless receiving device, based on the acquired control signal, sends audio control information corresponding to the control signal to the at least two active speakers via a second wireless link, so that the at least two active speakers adjust the corresponding audio parameters based on the audio control information. The first wireless link is used to carry the real-time transmission of the first sound signal, and the second wireless link is used to carry audio parameters, so that the sound signal transmission and audio parameter control are decoupled from each other.

[0008] In one embodiment, the first wireless link is a broadcast link, and the audio wireless receiving device transmits the first sound signal simultaneously to multiple active speakers in the active speaker assembly through the first wireless link in a one-to-many manner, so that the multiple active speakers receive the same first sound signal and emit sound.

[0009] In one embodiment, the first wireless link is configured to broadcast the first audio signal based on an analog wireless transmission method, so that the first audio signal does not undergo data packetization, buffering, or reassembly processing during transmission.

[0010] In one embodiment, the second wireless link is a control link independent of the first wireless link, and the audio wireless receiving device sends audio control information, including at least parameters for adjusting volume, sound effects and reverberation, to a plurality of active speakers in the active speaker assembly via the second wireless link.

[0011] In one embodiment, the first wireless link is used only to carry the transmission of the first audio signal, and the second wireless link is used only to carry audio parameter control information, so that the audio signal transmission process and the audio parameter adjustment process are independent of each other.

[0012] In one embodiment, the audio wireless receiving device sends the same audio control information to multiple active speakers in the active speaker assembly via the second wireless link, so that the multiple active speakers synchronously adjust their corresponding audio parameters based on the same audio control information.

[0013] In one embodiment, after receiving the first sound signal, each active speaker in the active speaker assembly performs local parameter compensation processing on the first sound signal according to the received audio control information, and then drives the corresponding sound-producing module to produce sound.

[0014] Furthermore, to achieve the above objectives, this application also provides an audio wireless receiving device, the audio wireless receiving device comprising: A microphone is used to acquire a first sound signal and transmit the first sound signal to a transmitter; A transmitter, electrically connected to the microphone, is used to broadcast the received first sound signal to the active speaker assembly via a first wireless link; The control module is used to acquire control signals and transmit the control signals to the active speaker assembly via a second wireless link. A wireless communication module for wireless communication connection with the active speaker assembly; A main control circuit, configured to execute the control method described above.

[0015] Furthermore, to achieve the above objectives, this application also provides an active speaker assembly, the active speaker assembly comprising: At least two powered speakers; The active speaker includes a main control circuit, which is configured to execute the control method described above.

[0016] In addition, to achieve the above objectives, this application also provides an audio system, including an audio wireless receiving device and an active speaker assembly wirelessly connected to the audio wireless receiving device; The audio wireless receiving device is configured to perform the control method described above; The active speaker assembly is configured to perform the control method described above. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a flowchart illustrating the control method of the audio system of this application; Figure 2This is a schematic diagram of the system architecture of the audio wireless receiving device of this application; Figure 3 This is a schematic diagram of the system architecture of the audio system in this application.

[0020] Attached image captions: 1. Audio wireless receiving device; 2. Active speaker assembly; 10. Microphone; 20. Transmitter; 30. Wireless communication module; 40. Main control circuit; 50. Control module.

[0021] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0023] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Existing technologies generally employ digital wireless communication methods based on Bluetooth or Wi-Fi to transmit audio signals. These technologies typically require encoding, data packetization, buffering, and reassembly of the audio signal during transmission. In situations with multiple devices accessing simultaneously or complex network environments, this can easily introduce unavoidable system-level latency. This is particularly problematic in scenarios where multiple active speakers are playing the same audio content simultaneously, especially in high-real-time applications using wireless microphones. The timing of audio data reception by each active speaker differs, leading to inconsistencies in the actual sound output. This results in problems such as echo, ghosting, or audio-visual desynchronization, making it difficult to meet the high real-time requirements of applications such as sound reinforcement, conferencing, or performances.

[0025] Secondly, in existing active speaker systems, audio signal transmission and audio parameter control are typically coupled in the same wireless communication link. When users adjust audio parameters such as volume, sound effects, or reverb, the control commands often require the same transmission channel or processing resources as the audio data, easily interfering with the real-time transmission of audio data and leading to audio interruptions, jitter, or delays. This problem is particularly prominent in active speaker scenarios, making it difficult to guarantee the overall stability and playback continuity of the system.

[0026] Furthermore, existing technologies typically use a unicast method to send control commands to each active speaker individually when controlling the parameters of multiple active speakers. This method not only has a high communication load, but also, as the number of active speakers increases, the timing of the control commands being sent can easily differ, leading to inconsistent effective times for audio parameters of different active speakers. This results in significant differences in listening experience during volume changes, sound effect switching, or reverb adjustments, affecting the overall consistency of the multi-active speaker system.

[0027] Furthermore, since different active speakers typically differ in hardware structure, power output capability, and acoustic characteristics, even if they receive the same audio signal and control commands, without a reasonable processing mechanism, each active speaker may directly produce sound according to the received signal, which may still lead to deviations in the actual playback effect and further reduce the collaborative playback quality of a multi-active speaker system.

[0028] The main solution of this application is to provide a new audio system control method, the core of which lies in separating audio signal transmission and audio parameter control at the functional level, and constructing a unified, low-interference control mechanism for multi-active speaker scenarios.

[0029] On the one hand, by using a wireless link independent of audio parameter control to transmit audio signals, the audio signals are not affected by parameter adjustment operations during transmission, thereby improving the real-time performance and continuity of audio signal transmission and reducing the time delay difference when multiple active speakers are playing simultaneously.

[0030] On the other hand, by separating the control information used to adjust audio parameters from the audio signal and sending the same audio control information to multiple active speakers through independent wireless control links, each active speaker can adjust its parameters based on a unified control benchmark, thereby avoiding the timing inconsistency problem caused by sending control commands one by one.

[0031] Meanwhile, after receiving the audio signal, each active speaker performs local parameter compensation processing on the audio signal in conjunction with the received audio control information before outputting sound, so that even with the objective existence of differences in the hardware of active speakers, the playback effect can still be kept consistent in subjective listening experience.

[0032] Through the above-mentioned improvement approach, this application can balance low latency in audio signal transmission and consistency in audio parameter control of multiple active speakers in a wireless environment, effectively improving the collaborative playback performance of multiple active speaker systems in complex application scenarios.

[0033] Based on this, this application proposes a control method for an audio system, please refer to... Figure 1 The control method for the audio system includes steps S100~S400: Step S100: The audio wireless receiving device acquires the first sound signal; Step S200: The first sound signal is broadcast to the active speaker via the first wireless link in a simulated broadcast one-to-many manner, so that at least two active speakers receive the same first sound signal and output the corresponding second sound signal. In step S300, the audio wireless receiving device acquires a control signal for adjusting the audio parameters of the at least two active speakers; Step S400: Send audio control information corresponding to the control signal to the at least two active speakers via the second wireless link, so that the at least two active speakers adjust the corresponding audio parameters based on the audio control information; The first wireless link is used to carry the real-time transmission of the first audio signal, and the second wireless link is used to carry audio parameters, thereby decoupling the audio signal transmission from the audio parameter control.

[0034] The audio system includes an audio wireless receiving device 1 and at least two active speakers that establish a wireless communication connection with the audio wireless receiving device 1. The audio wireless receiving device 1 and the active speakers exchange information wirelessly to transmit audio signals and control audio parameters.

[0035] The audio wireless receiving device 1 acquires a first sound signal during system operation and broadcasts the first sound signal to the active speakers via a first wireless link in a simulated broadcast multi-receiver mode. Through the first wireless link, at least two active speakers can simultaneously receive the same first sound signal and drive their respective sound-producing modules to output corresponding second sound signals based on the first sound signal, thereby achieving synchronous sound production from multiple active speakers.

[0036] It should be noted that the first sound signal refers to the original or processed audio signal acquired by the audio wireless receiving device 1, which may originate from the microphone 10, an audio playback device, or other audio sources. The second sound signal refers to the acoustic signal actually output by the active speaker after receiving the first sound signal and being converted by the sound-generating module.

[0037] It should be noted that the first wireless link uses analog broadcasting to transmit audio signals, eliminating the need for data packetization, buffering, or reassembly during transmission. This reduces transmission latency and meets the requirements for real-time audio transmission. The "one-to-many" method refers to the audio wireless receiving device 1 enabling multiple active speakers to simultaneously receive the same first audio signal through a single broadcast operation.

[0038] While transmitting audio signals, the audio wireless receiving device 1 also acquires control signals for adjusting the audio parameters of at least two active speakers. These control signals characterize the user's or external control device's adjustment needs for the audio playback state, such as volume adjustment, sound effect switching, or reverb adjustment.

[0039] After acquiring the control signal, the audio wireless receiving device 1 sends audio control information corresponding to the control signal to at least two active speakers through a second wireless link, enabling the at least two active speakers to adjust their respective audio parameters based on the same audio control information.

[0040] It should be noted that the audio control information is control data formed by the audio wireless receiving device 1 after parsing the control signal, used to instruct the active speaker to perform corresponding audio parameter adjustment operations. The audio control information is independent of the first sound signal and is transmitted through different wireless links.

[0041] It should be noted that the second wireless link is used to carry audio parameter control information, and its transmission content does not include real-time audio signals, thereby avoiding interference from audio parameter control to real-time audio signal transmission. By decoupling audio signal transmission from audio parameter control, unified adjustment of audio parameters of multiple active speakers can be achieved without affecting real-time audio playback.

[0042] Through the above method, this implementation can simultaneously achieve real-time audio synchronization playback and unified control of audio parameters for multiple active speakers under wireless conditions, avoiding delay or instability caused by the coupling between audio signal transmission and parameter control, thereby improving the overall playback effect and user experience of the audio system in multi-active speaker scenarios.

[0043] Optionally, in one embodiment, the first wireless link is configured as a broadcast link, and the audio wireless receiving device 1 transmits the first sound signal simultaneously to multiple active speakers in the active speaker assembly 2 in a one-to-many manner through the first wireless link, so that multiple active speakers can receive the same first sound signal and emit sound within the same time window.

[0044] Specifically, after acquiring the first audio signal, the audio wireless receiving device 1 does not establish point-to-point transmission connections for each active speaker separately. Instead, it broadcasts the first audio signal to multiple active speakers within its communication coverage area all at once. Through this one-to-many broadcast mechanism, multiple active speakers do not need to receive audio data sequentially but can receive the same first audio signal in parallel, thereby avoiding the problem of accumulated transmission delay caused by sending one by one.

[0045] It should be noted that the broadcast link refers to a wireless transmission method in which multiple active speakers can receive the same audio signal by the audio wireless receiving device 1 through a single transmission. This method does not require the audio wireless receiving device 1 to establish an independent communication session with each active speaker, thereby reducing the communication load and improving the transmission efficiency in multi-active speaker scenarios.

[0046] In this embodiment, the first wireless link is further configured to broadcast the first audio signal based on an analog wireless transmission method. Through the analog wireless transmission method, the first audio signal does not require data packetization, buffering, or reassembly processing when transmitted over the wireless link; instead, it is directly transmitted to each active speaker in the form of a continuous analog signal.

[0047] It should be noted that the analog wireless transmission method is relative to the wireless transmission method based on digital data packets. Its characteristic is that the audio signal does not need to undergo processing such as encoding, packetization, buffering or reassembly during transmission, thereby significantly reducing transmission latency and meeting the needs of real-time audio transmission.

[0048] On each active speaker side, after receiving the first sound signal, the active speaker directly drives the sound-emitting module to emit sound based on the first sound signal, generating a corresponding second sound signal. Since multiple active speakers receive the same first sound signal, and this first sound signal is transmitted in analog mode through a broadcast link, the sound emission process of each active speaker has a high degree of consistency in time, which is beneficial for achieving synchronous playback of multiple active speakers.

[0049] Optionally, in one embodiment, the second wireless link is configured as a control link independent of the first wireless link, for transmitting audio parameter control information between the audio wireless receiving device 1 and the active speaker assembly 2.

[0050] Specifically, after acquiring the control signal used to adjust the audio parameters of the active speakers, the audio wireless receiving device 1 sends audio control information corresponding to the control signal to multiple active speakers in the active speaker assembly 2 via the second wireless link. The audio control information includes at least control content for adjusting volume, sound effects, and reverberation parameters, so that multiple active speakers can adjust their respective audio parameters based on the same audio control information.

[0051] It should be noted that the second wireless link and the first wireless link are functionally independent. The first wireless link is used to carry the real-time transmission of the first audio signal, while the second wireless link is only used to carry audio parameter control information. By separating audio signal transmission and audio parameter control onto different wireless links, interference between the audio parameter control process and the real-time audio transmission can be avoided.

[0052] It should be noted that the audio control information is control data formed by the audio wireless receiving device 1 after parsing the control signal. It does not contain real-time audio signals used to drive the active speakers to produce sound, but rather instructs the active speakers to adjust audio parameters such as volume, sound effects, or reverberation. The audio control information can be transmitted using a signal format suitable for wireless control.

[0053] It should be noted that the volume parameter, sound effect parameter, and reverberation parameter are used to describe the sound output characteristics of the active speaker when playing audio. The volume parameter controls the sound output intensity, the sound effect parameter controls the sound frequency distribution or timbre effect, and the reverberation parameter controls the spatial reflection effect of the sound. By adjusting these audio parameters, flexible control of the audio playback effect in a multi-active speaker system can be achieved.

[0054] Optionally, in one embodiment, the first wireless link and the second wireless link are clearly distinguished in the system architecture and each undertakes different data transmission functions.

[0055] Specifically, the first wireless link is used only for transmitting the first audio signal. After acquiring the first audio signal, the audio wireless receiving device 1 transmits the first audio signal to the speaker through the first wireless link, enabling the active speaker to perform sound processing based on the received first audio signal. During operation, the first wireless link does not carry control information for adjusting audio parameters.

[0056] Meanwhile, the second wireless link is only used to carry audio parameter control information. After acquiring the control signal and parsing the audio control information, the audio wireless receiving device 1 sends the audio control information to the active speaker through the second wireless link, causing the active speaker to adjust the corresponding audio parameters based on the audio control information. During operation, the second wireless link does not carry the real-time audio signal used to drive the active speaker to produce sound.

[0057] It should be noted that the first wireless link and the second wireless link are logically independent of each other. Their independence is reflected in the different data types they carry, the different data processing paths, and the different impacts on the system's real-time performance. By transmitting the first audio signal and audio parameter control information through different wireless links, interference with the real-time transmission of the first audio signal during the audio parameter adjustment process can be avoided.

[0058] It should be noted that the audio signal transmission process refers to the process in which the first sound signal is sent from the audio wireless receiving device 1 to the active speaker and used to drive the sound-generating module to output sound; the audio parameter adjustment process refers to the process in which the active speaker updates audio parameters such as volume, sound effects, or reverb according to the received audio control information. In this embodiment, the above two processes are completed separately through different wireless links, thus achieving mutual independence.

[0059] Optionally, in one embodiment, the audio wireless receiving device 1 sends the same audio control information to multiple active speakers in the speaker assembly via a second wireless link. The audio control information is uniformly generated by the audio wireless receiving device 1 based on user-input control signals and sent to each active speaker with the same data content, enabling the multiple active speakers to adjust their respective audio parameters based on the same audio control information.

[0060] It should be noted that the same audio control information refers to control information that is consistent at the content level. It includes at least audio parameter values ​​for adjusting volume, sound effects, or reverb. Each active speaker does not modify this audio control information differently when receiving it, thereby avoiding differences in listening experience caused by inconsistent control parameters.

[0061] Based on this, each active speaker in the active speaker assembly 2, upon receiving the first sound signal, does not directly drive the sound-producing module to produce sound. Instead, it performs local parameter compensation processing on the first sound signal in conjunction with the received audio control information. The local parameter compensation processing includes adjusting the amplitude, spectrum, or time characteristics of the first sound signal according to the audio control information.

[0062] It should be noted that the local parameter compensation processing is a process that is independently completed by the main control circuit 40 or audio processing module inside each active speaker. The processing is based on the audio control information received through the second wireless link, rather than retransmitting or reacquiring the first sound signal itself.

[0063] After completing the local parameter compensation process, each active speaker then drives its corresponding sound module to emit sound, causing the parameter-compensated first sound signal to be output as a second sound signal. Since multiple active speakers perform local parameter compensation based on the same audio control information, they can maintain a consistent audio parameter state even as audio parameters change, thus achieving synchronized adjustment and consistent playback.

[0064] It should be noted that the aforementioned synchronization adjustment does not require the internal processing of each active speaker to be completed completely simultaneously. Rather, it refers to the time difference between the effective audio parameters being within a range that is difficult for the human ear to perceive, thereby creating a consistent audio effect across multiple active speakers in terms of subjective listening experience.

[0065] Through the above method, this implementation method can achieve synchronous control and consistent effect of audio parameters in a multi-active speaker system without increasing the audio signal transmission load, further improving the collaborative playback performance of the multi-active speaker system in dynamic adjustment scenarios.

[0066] Optionally, in one embodiment, the audio wireless receiving device 1 is used to receive real-time audio signals from a wireless microphone. Specifically, the audio wireless receiving device 1 may include a wireless microphone receiver, which is used to receive sound signals transmitted by the wireless microphone through a wireless channel and input the received sound signals as the first sound signal into the system. Thus, the audio input device may include a wireless microphone or a wireless microphone receiving device used in conjunction with a wireless microphone.

[0067] In practical applications, wireless microphones typically operate on different wireless frequency bands. For example, in some implementations, wireless microphones can operate in the UHF (Ultra High Frequency) band, where the system latency during audio signal transmission is typically around 4ms. In other implementations, wireless microphones can operate in the 2.4GHz band, where the system latency during audio signal transmission is typically around 12ms. These delays mainly originate from wireless modulation / demodulation, signal processing, and internal system processing.

[0068] Studies have shown that when the overall latency of an audio system is below approximately 25ms, the human ear typically cannot perceive the sound delay significantly. Therefore, in this technical solution, the first audio signal is simultaneously transmitted to multiple speakers via the first wireless link in a simulated broadcast multi-receiver manner. This allows multiple speakers to receive and play the audio signal within a small time difference, thus keeping the overall system latency below approximately 25ms. Within this latency range, even if multiple speakers amplify sound simultaneously, the human ear typically cannot distinguish the time difference between different speakers, thereby ensuring the auditory consistency of the multi-speaker system.

[0069] Therefore, by using a wireless microphone as the audio signal source and combining it with the wireless audio transmission and control mechanism described in this application, system latency can be effectively reduced and sound synchronization and real-time performance can be improved in multi-speaker sound reinforcement scenarios. This is particularly suitable for application scenarios with high real-time requirements, such as conference sound reinforcement, stage performances, and live events.

[0070] Optional, refer to Figure 2 In one embodiment, the audio wireless receiving device 1, as the core device for audio signal acquisition and control information generation in the audio system, is configured to wirelessly connect with the active speaker assembly 2.

[0071] Specifically, the audio wireless receiving device 1 includes a microphone 10, a transmitter 20, a control module 50, a wireless communication module 30, and a main control circuit 40. The microphone 10 is used to acquire a first sound signal and output the first sound signal to the transmitter 20 in the form of an electrical signal. The transmitter 20 is electrically connected to the microphone 10 and is used to receive the first sound signal from the microphone 10 and broadcast the first sound signal to the active speaker assembly 2 through a first wireless link.

[0072] It should be noted that the first sound signal can be a voice signal or other audio signal collected by the user through the microphone 10. The broadcast refers to sending the same sound signal to multiple active speakers in the active speaker assembly 2 in a one-to-many manner, so that each active speaker can perform sound processing.

[0073] The control module 50 is used to acquire control signals and transmit the control signals to the active speaker assembly 2 via a second wireless link. The control signals are used to indicate adjustments to the audio parameters of the active speaker, such as volume adjustment, sound effect selection, or reverb parameter adjustment.

[0074] It should be noted that the control module 50 can be a physical button, touch unit or other human-computer interaction component set on the audio wireless receiving device 1, or a signal acquisition unit connected to the main control circuit 40. Its specific implementation is not limited.

[0075] The wireless communication module 30 is used to establish a wireless communication connection between the audio wireless receiving device 1 and the active speaker assembly 2, so that the audio wireless receiving device 1 can send a first sound signal and audio control information to the active speaker assembly 2 through the first wireless link and the second wireless link respectively.

[0076] It should be noted that the main control circuit 40 can be a microcontroller, a processor, or an integrated circuit with control functions, and its internal control logic for each module can be implemented through program instructions.

[0077] Optional, refer to Figure 3 In one embodiment, the active speaker assembly 2 is used to receive a first sound signal and audio control information from the audio wireless receiving device 1, and to complete sound output and audio parameter adjustment based on these signals.

[0078] Specifically, the active speaker assembly 2 includes at least two active speakers, and there is no requirement for a wired connection between the active speakers. Instead, they establish a communication connection with the audio wireless receiving device 1 wirelessly. Each active speaker includes a main control circuit 40, which is configured to execute the control method described above.

[0079] It should be noted that the active speaker assembly 2 refers to a logical collection of multiple active speakers, which can be arranged in a centralized or distributed manner. The active speakers do not need to interact directly with each other, but are controlled uniformly through the audio wireless receiving device 1.

[0080] During operation, after receiving the first sound signal from the audio wireless receiving device 1, the main control circuit 40 of each active speaker performs local parameter compensation processing on the first sound signal according to the received audio control information, and drives the corresponding sound-producing module to produce sound after completing the processing, so that the multiple active speakers maintain a consistent playback effect when the audio parameters change.

[0081] It should be noted that the main control circuit 40 can be a microcontroller, a processor, or an integrated circuit with control functions. It processes the first sound signal and controls the update of audio parameters by executing preset program instructions.

[0082] Based on this, the present invention also provides an audio system, the audio system including an audio wireless receiving device 1 and an active speaker assembly 2 wirelessly connected to the audio wireless receiving device 1. The audio wireless receiving device 1 is configured to execute the control method described above, for acquiring a first sound signal, generating audio control information, and transmitting it wirelessly to the active speaker assembly 2; the active speaker assembly 2 is configured to execute the control method described above, for performing local parameter compensation processing on the first sound signal and completing sound output.

[0083] It should be noted that the audio wireless receiving device 1 and the active speaker component 2 in the audio system cooperate with each other in function. The audio wireless receiving device 1 is responsible for acquiring sound signals and generating unified audio parameter control information, while the active speaker component 2 is responsible for completing specific audio processing and sound production based on the received sound signals and audio control information.

[0084] With the above structural configuration, the audio system can enable multiple active speakers to synchronously adjust audio parameters based on the same audio control information even when there are time delay differences in wireless transmission. This ensures a consistent listening experience during collaborative playback by multiple active speakers and improves the overall collaborative control performance of the system.

[0085] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0086] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0087] The control method provided in this application can be written in one or more programming languages ​​or a combination thereof to perform computer program code for executing the operations of this application. These programming languages ​​include object-oriented programming languages—such as Java, Smalltalk, and C++—and conventional procedural programming languages—such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0088] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0089] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0090] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent scope of this application.

Claims

1. A control method for an audio system, characterized in that, Applied to an audio system, the audio system including an audio wireless receiving device and an active speaker wirelessly connected to the audio wireless receiving device, the control method includes: The audio wireless receiving device broadcasts the acquired first sound signal to the active speaker via a first wireless link in a simulated broadcast one-to-many manner, so that at least two active speakers receive the same first sound signal and output the corresponding second sound signal; The audio wireless receiving device, based on the acquired control signal, sends audio control information corresponding to the control signal to the at least two active speakers via a second wireless link, so that the at least two active speakers adjust the corresponding audio parameters based on the audio control information. The first wireless link is used to carry the real-time transmission of the first sound signal, and the second wireless link is used to carry audio parameters, so that the sound signal transmission and audio parameter control are decoupled from each other.

2. The control method for the audio system as described in claim 1, characterized in that, The first wireless link is a broadcast link. The audio wireless receiving device transmits the first sound signal simultaneously to multiple active speakers in the active speaker assembly through the first wireless link in a one-to-many manner, so that the multiple active speakers receive the same first sound signal and emit sound.

3. The control method for the audio system as described in claim 2, characterized in that, The first wireless link is configured to broadcast the first audio signal based on an analog wireless transmission method, so that the first audio signal does not undergo data packetization, buffering, or reassembly processing during transmission.

4. The control method for the audio system as described in claim 1, characterized in that, The second wireless link is a control link independent of the first wireless link. The audio wireless receiving device sends audio control information, including at least parameters for adjusting volume, sound effects, and reverberation, to multiple active speakers in the active speaker assembly via the second wireless link.

5. The control method for the audio system as described in claim 4, characterized in that, The first wireless link is used only to carry the transmission of the first audio signal, and the second wireless link is used only to carry audio parameter control information, so that the audio signal transmission process and the audio parameter adjustment process are independent of each other.

6. The control method for the audio system as described in claim 1, characterized in that, The audio wireless receiving device sends the same audio control information to multiple active speakers in the active speaker assembly through the second wireless link, so that the multiple active speakers synchronously adjust their corresponding audio parameters based on the same audio control information.

7. The control method for the audio system as described in any one of claims 1 to 6, characterized in that, After receiving the first sound signal, each active speaker in the active speaker assembly performs local parameter compensation processing on the first sound signal according to the received audio control information, and then drives the corresponding sound-emitting module to emit the second sound signal.

8. An audio wireless receiving device, characterized in that, The audio wireless receiving device includes: A microphone is used to acquire a first sound signal and transmit the first sound signal to a transmitter; A transmitter, electrically connected to the microphone, is used to broadcast the received first sound signal to the active speaker assembly via a first wireless link; The control module is used to acquire control signals and transmit the control signals to the active speaker assembly via a second wireless link. A wireless communication module for wireless communication connection with the active speaker assembly; A main control circuit, configured to perform the control method as described in any one of claims 1 to 6.

9. An active speaker assembly, characterized in that, The active speaker assembly includes: At least two active speakers; The active speaker includes a main control circuit, which is configured to perform the control method as described in claim 7.

10. An audio system, characterized in that, Includes an audio wireless receiving device and an active speaker assembly wirelessly connected to the audio wireless receiving device; The audio wireless receiving device is configured to perform the control method as described in any one of claims 1 to 6; The active speaker assembly is configured to perform the control method as described in claim 7.

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