Intelligent frequency-division multi-scene sound effect management and control combined sound system and method

Abstract

The invention discloses an intelligent frequency division multi-scene sound effect management and control combined sound system and method, the system comprises an input module, a loudspeaker unit, an audio signal processing module and a control module, the loudspeaker module comprises at least one super-high pitch audio unit, a high pitch audio unit, a mid-high pitch audio unit and a mega bass audio unit; the audio signal processing module is electrically connected with the input module and the loudspeaker unit, is used for processing an input audio signal and sending the audio signal to the loudspeaker unit, and comprises a frequency division module, a sound effect module and a power amplification module; and the control module is used for presetting and selecting a frequency division strategy, sound effect processing parameters and a power amplification channel of the audio signal according to different scenes so as to play the audio signal received by the system. The intelligent frequency division multi-scene sound effect management and control combined audio system has the advantages of standardization and audio and video integration.

Description

Technical Field

[0001] The present invention relates to the technical field of audio playback, and in particular to an intelligent frequency division multi-scene sound effect control combined audio system and method. Background Art

[0002] In modern home entertainment and commercial audio equipment, the quality and functionality of the sound system are crucial to the user experience. However, traditional sound design has many limitations, especially in terms of operational complexity and usage threshold, which are difficult for ordinary users to master, as shown in the following aspects:

[0003] 1. DIY is required, and installation and debugging are complicated

[0004] Traditional audio systems usually adopt modular design, and users need to select and match different speaker units (such as bass, mid-high and tweeter units) and manually adjust the power amplifier, crossover and sound processing modules. Although this design is flexible, it places high demands on the user's professional knowledge and practical ability.

[0005] The concept of DIY (Do It Yourself) is particularly prominent in traditional audio systems. Users need to purchase different audio components from the market according to their needs and preferences, and then assemble and debug them by themselves. This requires not only certain audio knowledge, but also certain hands-on ability and patience.

[0006] During the debugging process, users often need to use professional instruments to test frequency response and adjust equalization, which further raises the threshold of use. For ordinary users, such a debugging process is time-consuming and laborious, and it is easy to lead to improper configuration and affect the final sound performance.

[0007] 2. The operation is complicated and the experience is not friendly

[0008] Traditional audio systems lack intelligent and integrated functional design. Users need to manually switch sound modes or adjust speaker parameters according to different scenarios. For example, when switching from listening to music to watching movies, users need to switch from music-specific configuration to movie-specific configuration. This switching involves physical adjustments in multiple aspects such as amplifier configuration, speaker configuration, and equalizer configuration. It is not only cumbersome to operate, but also has a very high threshold for use.

[0009] For music enthusiasts and movie lovers, frequent manual adjustments not only waste time, but may also lead to inconsistent sound settings, affecting the overall entertainment experience.

[0010] 3. Inconsistent user experience

[0011] Since traditional audio systems are highly dependent on DIY debugging by users, the final sound performance often depends on the user's experience level. This model leads to large differences in the user experience of different users. Ordinary users find it difficult to obtain high-quality sound performance due to their lack of professional audio knowledge and technology, which affects their entertainment enjoyment.

[0012] In summary, these problems in traditional home audio systems seriously affect the user experience and satisfaction. Therefore, it is urgent to propose a standardized, audio-visual integrated home audio device to solve the shortcomings of traditional home audio systems in installation, debugging, operation and user experience, and provide users with a more convenient and high-quality sound solution. Summary of the invention

[0013] The embodiment of the present application aims to propose a standardized, audio-visual integrated home audio device by providing an intelligent frequency-division multi-scene sound effect control combination audio system.

[0014] To achieve the above purpose, the embodiment of the present application provides an intelligent frequency division multi-scene sound effect control combined audio system, including:

[0015] An input module, used to receive an input of at least one audio signal;

[0016] The speaker unit comprises at least one super high frequency audio unit, at least one treble audio unit, at least one mid-high frequency audio unit and at least one super bass audio unit;

[0017] The audio signal processing module is electrically connected to the input module and the speaker unit respectively, and is used to process the input audio signal and send it to the speaker unit. The audio signal processing module includes a frequency division module, a sound effect module and a power amplifier module, wherein:

[0018] The frequency division module is used to perform frequency division processing on the input audio signal according to different frequency bands.

[0019] The sound effect module is used to perform sound effect enhancement processing on the divided audio signal.

[0020] The power amplifier module has a plurality of independent power amplifier channels, each of which corresponds to an audio unit in the speaker unit, and is used to amplify the audio signal before or after frequency division to a power level matching the corresponding audio unit; and

[0021] The control module is electrically connected to the audio signal processing module and is used to preset and select the frequency division strategy, sound effect processing parameters and power amplifier channels of the audio signal according to different scenarios to play the audio signal received by the system.

[0022] In one embodiment, the frequency division module includes an active frequency division module and a passive frequency division module, wherein:

[0023] The active frequency division module is used to perform frequency division processing on the audio signal before the audio signal enters the power amplifier channel;

[0024] The passive frequency division module is used to perform frequency division processing on the audio signal after the audio signal enters the power amplifier channel.

[0025] In one embodiment, the scene preset includes a movie viewing preset;

[0026] Select the frequency division strategy, sound processing parameters and amplifier channels of the audio signal according to the movie viewing preset to play the audio signal received by the system, including:

[0027] Calling the active frequency division module to divide the audio signal received by the input module into a super bass signal, a mid-high frequency signal and a treble signal;

[0028] According to the preset sound effect processing parameters of the movie, the sound effect module is called to perform independent sound effect enhancement processing for the super bass signal, the mid-high frequency signal and the treble signal respectively;

[0029] Allocate the super bass signal, mid-high frequency signal and treble signal after the sound effect is enhanced to the corresponding power amplifier channels for power amplification;

[0030] The power-amplified super bass signal, mid-high frequency signal and treble signal are sent to the corresponding super bass audio unit, mid-high frequency audio unit and treble audio unit for playback.

[0031] In one embodiment, the scene preset includes a movie viewing preset;

[0032] Select the frequency division strategy, sound processing parameters and amplifier channels of the audio signal according to the movie viewing preset to play the audio signal received by the system, including:

[0033] Copying the audio signal received by the input module into a first audio signal and a second audio signal;

[0034] Invoking an active frequency division module to divide the first audio signal into a subwoofer signal, a mid-high frequency signal and a treble signal;

[0035] According to the preset sound effect processing parameters of the movie, the sound effect module is called to perform independent sound effect enhancement processing for the super bass signal, the mid-high frequency signal and the treble signal respectively;

[0036] Allocate the super bass signal, mid-high frequency signal and treble signal after the sound effect enhancement to the corresponding power amplifier channels for power amplification, and allocate the second audio signal to the power amplifier channel corresponding to the super high frequency audio unit for power amplification;

[0037] Calling the passive frequency division module to divide the second audio signal after power amplification to obtain a super high frequency signal;

[0038] The power-amplified subwoofer signal, mid-high frequency signal and treble signal are sent to the corresponding subwoofer audio unit, mid-high frequency audio unit and treble audio unit for playback, and the super treble signal obtained by passive frequency division is sent to the super treble audio unit for playback.

[0039] In one embodiment, the scene preset includes a singing preset, and when in the singing preset, the input module receives an audio signal including a human voice audio signal and an accompaniment audio signal;

[0040] Select the frequency division strategy, sound effect processing parameters and amplifier channels of the audio signal according to the singing preset to play the audio signal received by the system, including:

[0041] Calling the active frequency division module to divide the accompaniment audio signal into a super bass signal, and to divide the human voice audio signal into a mid-high pitch signal and a treble signal;

[0042] According to the preset sound effect processing parameters for singing, the sound effect module is called to perform independent sound effect enhancement processing for the super bass signal, the mid-high pitch signal and the treble signal respectively;

[0043] Allocate the super bass signal, mid-high frequency signal and treble signal after the sound effect is enhanced to the corresponding power amplifier channels for power amplification;

[0044] The power-amplified super bass signal, mid-high frequency signal and treble signal are sent to the corresponding super bass audio unit, mid-high frequency audio unit and treble audio unit for playback.

[0045] In one embodiment, the scene preset includes a singing preset, and when in the singing preset, the input module receives an audio signal including a human voice audio signal and an accompaniment audio signal;

[0046] Select the frequency division strategy, sound effect processing parameters and amplifier channels of the audio signal according to the singing preset to play the audio signal received by the system, including:

[0047] duplicating the accompaniment audio signal into a first accompaniment audio signal and a second accompaniment audio signal;

[0048] Invoking an active frequency division module to divide the first accompaniment audio signal into a super bass signal, and to divide the human voice audio signal into a mid-high pitch signal and a treble signal;

[0049] According to the preset sound effect processing parameters of singing, the sound effect module is called to perform independent sound effect enhancement processing for the super bass signal, the mid-high pitch signal and the treble signal respectively;

[0050] Allocating the super bass signal, mid-treble signal and treble signal after the sound effect enhancement to the corresponding power amplifier channels for power amplification, and allocating the second accompaniment audio signal to the power amplifier channel corresponding to the super treble audio unit for power amplification;

[0051] Calling the passive frequency division module to divide the second accompaniment audio signal after power amplification to obtain a super high pitch signal;

[0052] The power-amplified subwoofer signal, mid-high frequency signal and treble signal are sent to the corresponding subwoofer audio unit, mid-high frequency audio unit and treble audio unit for playback, and the super treble signal obtained by passive frequency division is sent to the super treble audio unit for playback.

[0053] In one embodiment, the scene preset includes a music preset;

[0054] Select the frequency division strategy, sound effect processing parameters and amplifier channels of the audio signal according to the music preset to play the audio signal received by the system, including:

[0055] Copying the audio signal received by the input module into a first audio signal and a second audio signal;

[0056] Invoke an active frequency division module to divide the first audio signal to obtain a super bass signal;

[0057] According to the preset sound effect processing parameters of the music, calling the sound effect module to perform sound effect enhancement processing on the super bass signal;

[0058] Allocating the super bass signal after the sound effect enhancement to the power amplifier channel corresponding to the super bass audio unit for power amplification, and allocating the second audio signal to the power amplifier channel corresponding to the super tweeter audio unit for power amplification;

[0059] Calling the passive frequency division module to divide the second audio signal after power amplification to obtain a super high frequency signal;

[0060] The power-amplified super bass signal is sent to the corresponding super bass audio unit for playback, and the super treble signal obtained by passive frequency division is sent to the super treble audio unit for playback.

[0061] In one embodiment, at least one of the subwoofer, the mid-high frequency unit, the tweeter, and the super tweeter is configured as a single channel or a dual channel.

[0062] In one embodiment, the system further includes a user interface for receiving scene preset selection instructions and sound effect processing parameter adjustment instructions input by a user, and for displaying the current system status.

[0063] The technical solution of this application also proposes an intelligent frequency division multi-scene sound effect control method, the method comprising:

[0064] receiving audio signals, wherein the audio signals include audio signals from different audio sources;

[0065] Determine the scene preset required for playing audio according to the scene preset selection instruction;

[0066] Selecting a frequency division strategy, sound effect processing parameters, and power amplifier channels for processing audio signals according to the determined scene presets;

[0067] The audio unit corresponding to the selected power amplifier channel is called to play the received audio signal.

[0068] The technical solution of this application adopts software settings based on X86 architecture, DSP intelligent audio presettings and specific power amplifier channel hardware design to realize a sound system that integrates software and hardware. Through intelligent audio presettings and optimized configuration of power amplifier channels, the system can dynamically adjust sound effect parameters in multiple scenarios, significantly improving the sound quality performance and adaptability of the sound system.

[0069] Secondly, through the combination of multiple audio units, and combined with physical passive frequency division and electronic active frequency division technology, this application achieves high-precision audio signal division and restoration. Passive frequency division provides the natural sound coloration effect of traditional audio, while active frequency division combines DSP intelligent algorithm to dynamically optimize frequency band connection and sound effect details, thereby achieving multi-unit, multi-sound effect intelligent audio performance. This frequency division method covers multiple frequency bands while avoiding frequency overlap or loss, and improves the clarity and layering of audio output.

[0070] At the same time, through the special microphone interface (channel), this application further optimizes the sound experience of the user's singing scene, supporting high-quality vocal restoration and reverberation effects. Combined with the scene preset function of the control module, users can switch to a variety of audio and video scenes such as theaters, concerts, meetings, music appreciation, etc. with one click, easily achieving efficient matching and optimization of sound effects in different scenes.

[0071] In addition, this application effectively reduces the space occupied by the audio system through integrated hardware and software design and compact system layout, significantly simplifying the user's equipment placement and usage process.

[0072] It can be seen that compared with the traditional DIY product model, this solution provides higher integration and operational convenience, while maintaining the price advantage of high performance and multi-function, providing users with a more attractive smart audio solution. Therefore, the technical solution of this application not only subverts the production and sales model of the traditional film and television audio industry, but also significantly improves the user experience, sound performance and cost performance of the audio system through integrated software and hardware design and multi-function scene adaptation capabilities. This innovative audio system provides a new choice for home entertainment, commercial applications and personal performances, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0074] Figure 1 This is a module structure diagram of an embodiment of a multi-scene sound effect control device of the present invention;

[0075] Figure 2 This is a flow chart of an embodiment of the intelligent frequency division multi-scene sound effect control method of the present invention.

[0076] Description of Reference Numerals

[0077] 10. Input module;

[0078] 20. Speaker unit; 21. Subwoofer audio unit; 22. Mid-high frequency audio unit; 23. Treble audio unit; 24. Super treble audio unit;

[0079] 30. Audio signal processing module; 31. Frequency division module; 311. Active frequency division module; 312. Passive frequency division module; 32. Sound effect module; 34. Power amplifier module;

[0080] 40. Control module

[0081] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0082] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0083] In order to better understand the above technical solution, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0084] It should be noted that in the claims, any reference symbols placed between brackets shall not be constructed as limitations to the claims. The presence of "comprising" in the text does not exclude the presence of components or steps not listed in the claims. The quantifier "one" or "an" preceding a component does not exclude the presence of a plurality of such components. The present invention can be implemented by means of hardware comprising several different components and by means of appropriately programmed computers. In a unit claim that lists several means, several of these means may be embodied by the same hardware item. The use of "first", "second", and "third" etc. does not indicate any order, and these words may be interpreted as names.

[0085] The present application proposes an intelligent frequency division multi-scene sound effect control combination audio system, which can be applied to but not limited to 2.1-channel, 5.1-channel and 7.1-channel audio systems.

[0086] like Figure 1 As shown, the audio system includes an input module 10 , a speaker unit 20 , an audio signal processing module 30 and a control module 40 .

[0087] Specifically, the input module 10 is used to receive at least one audio signal input. The audio signal can be music, movie soundtracks or call content transmitted via a wired connection (such as AUX, optical fiber, coaxial) or a wireless connection (such as Bluetooth, Wi-Fi).

[0088] The audio signal includes a digital audio signal and an analog audio signal, which can cover various types of content sources and meet the needs of different users. The input module 10 can automatically identify the input signal type and complete the conversion of digital / analog signals, thereby realizing unified signal processing.

[0089] The speaker unit 20 includes at least one super tweeter audio unit 24, at least one treble audio unit 23, at least one mid-treble audio unit 22 and at least one subwoofer audio unit 21. Specifically, the speaker unit 20 is configured to restore audio signals of different frequency bands respectively, wherein the super tweeter audio unit 24 is responsible for reproducing high-frequency details, the treble audio unit 23 is responsible for the main output of the high-frequency band, the mid-treble audio unit 22 is used to play the transition frequency band from the intermediate frequency to the high frequency, and the subwoofer audio unit 21 is used to enhance the shocking effect of the low frequency and the ultra-low frequency.

[0090] The audio signal processing module 30 is electrically connected to the input module 10 and the speaker unit 20 respectively, and is used to process the input audio signal and send it to the speaker unit 20 . The audio signal processing module 30 includes a frequency division module 31 , a sound effect module 32 and a power amplifier module 34 .

[0091] Specifically, the frequency division module 31 is used to perform frequency division processing on the input audio signal according to different frequency bands (preset frequency division points), and split it into multiple frequency band signals. Among them, the selection of the frequency division point is based on the frequency response characteristics of the speaker unit 20. For example, the frequency division range of the tweeter unit can be set to 2kHz to 20kHz, the range of the mid-high unit is 200Hz to 2kHz, and the subwoofer covers 20Hz to 200Hz. Through precise frequency division processing, frequency overlap or loss can be avoided, thereby improving the sound quality effect.

[0092] The sound effect module 32 is used to perform sound effect enhancement processing on the divided audio signal, and apply sound effect enhancement effects such as reverberation, equalization, dynamic compression, stereo expansion, etc. For example, in a cinema scene, the sound effect module 32 uses dynamic range expansion and low-frequency enhancement to make the woofer produce a shocking low-frequency effect and optimize voice clarity; in a music scene, it enhances the high and medium frequencies through equalization to enhance the layering and detail performance of the music.

[0093] The power amplifier module 34 has multiple independent power amplifier channels, each power amplifier channel corresponds to an audio unit in the speaker unit 20, and the power amplifier channel is used to amplify the audio signal before or after frequency division to a power level matching the corresponding audio unit to ensure the stability of the output sound quality and the normal operation of the speaker unit 20.

[0094] In this embodiment, since the power amplifier module 34 adopts an independent power amplifier channel design, it ensures that each audio unit can obtain precise power drive and avoid signal interference, thereby achieving better sound quality performance.

[0095] The control module 40 is electrically connected to the audio signal processing module 30, and is used to select the frequency division strategy, sound effect processing parameters and power amplifier channels of the audio signal according to different scene presets to play the audio signal received by the system. Among them, scene preset refers to a set of audio processing parameters and hardware configuration strategies pre-configured by the sound system according to the needs of different usage scenarios, which are used to dynamically optimize the sound effect performance and user experience. Through scene presets, users do not need to manually adjust complex sound effect parameters, but only need to select the required scene, and the system can automatically load the corresponding sound effect processing solution to achieve the best playback effect.

[0096] Specifically, the control module 40 can store multiple scene modes, such as cinema mode, music mode, singing mode, voice mode, etc. When playing audio, the system can use the corresponding frequency division strategy, sound effect processing parameters and select the corresponding amplifier channel to play the audio received by the system according to the current scene preset. In this way, the audio processing parameters can be dynamically adjusted according to different scenes to meet the personalized needs of users in various scenes.

[0097] The intelligent frequency division multi-scene sound effect control combination audio system of the present application can dynamically select the frequency division strategy, sound effect processing parameters and amplifier channels according to the preset configuration of the current scene when playing audio, process the received audio signal, and accurately match the corresponding speaker unit 20 to play the processed audio signal. This design provides strong support for the optimization of multi-scene sound effects, allowing users to easily achieve sound effect restoration in a variety of professional scenes with only a set of standard equipment and scene selection functions, without the need for professional knowledge or manual debugging of equipment.

[0098] At the same time, compared with the traditional DIY product model, the audio system of this application is not only easy to operate through standardized and highly integrated design, but also can significantly reduce learning costs and equipment costs while maintaining high performance and multi-functions, bringing users a more intelligent, multi-scenario, easy-to-use and cost-effective audio solution.

[0099] It can be seen that compared with the traditional DIY product model, the audio system of the technical solution of this application has the advantages of intelligence, multi-scene sound experience, low learning cost, low cost, and high integration.

[0100] In some embodiments, the control module 40 uses a processor based on the X86 architecture. Through the high-performance processing capabilities of the X86 architecture, the control module 40 can implement complex audio signal processing algorithms, efficient scene switching logic, and precise frequency division and sound effect parameter control. The versatility and scalability of this architecture enable the system to easily support a variety of sound effect processing requirements, while providing a strong hardware foundation for future function upgrades or expansions, thereby further enhancing the intelligence and adaptability of the system.

[0101] In some embodiments, the audio system of the present application further includes a user interface for receiving scene preset selection instructions and sound effect processing parameter adjustment instructions input by a user, and for displaying the current system status.

[0102] Specifically, the user interface can receive scene preset instructions selected by the user, such as cinema mode, music mode, singing mode, etc. Specifically, the user can select the scene preset through physical buttons, touch screen or mobile application. The system automatically loads the corresponding frequency division strategy, sound effect processing parameters and amplifier channel settings according to the preset instructions selected by the user.

[0103] Specifically, the user interface allows the user to customize the sound effect processing parameters and make personalized adjustments to the audio output of the system. Specifically, the user can adjust the sound effect parameters (such as bass enhancement, treble details, equalizer frequency band adjustment, volume balance (left and right channels), sound field width, etc.) through sliders, knobs or digital inputs, and display the adjustment results in real time. The system transmits the adjusted instructions to the sound effect module 32 or the power amplifier module 34 to dynamically update the sound effect performance.

[0104] Specifically, the user interface can be used to display the working status of the sound system in real time to help users understand the system operation status. Specifically, the user interface can display the following system status in the form of graphics or text through an LCD, LED or touch screen:

[0105] The current scene preset status (such as music mode, singing mode).

[0106] Current audio processing parameter values ​​(such as bass intensity, volume level).

[0107] The working state of the speaker unit 20 (such as the working state of the subwoofer unit and the tweeter unit).

[0108] Input signal type (such as Bluetooth, AUX, optical fiber) and connection status.

[0109] It can be understood that the user interface can realize efficient interaction between the sound system and the user, providing users with scene preset selection, sound effect adjustment and system status display functions. In this way, users can quickly select preset scenes and enjoy optimized sound effect experience with one click. In addition, it can also support users to dynamically adjust sound effect parameters according to personal preferences to meet the auditory needs of different scenes; and by displaying the system status in real time, it can enhance the user's controllability of the sound system and improve the operating experience.

[0110] It can be seen that the addition of the user interface not only enhances the intelligence and usability of the audio system, but also improves the flexibility and convenience of user operation, further optimizing the overall user experience.

[0111] It is worth noting that the design of the present application is not limited to this. In some embodiments, the system can also automatically analyze the current sound effect scene according to the source of the audio signal and call the corresponding scene preset.

[0112] Optionally, at least one of the subwoofer, the mid-high frequency unit, the tweeter, and the super tweeter is configured as a mono or dual channel.

[0113] Specifically, the monaural configuration refers to using a single speaker unit 20 to process a corresponding audio signal.

[0114] Specifically, subwoofers are often configured in a mono configuration to ensure the uniformity and shock of low-frequency signals.

[0115] Additionally, in space-constrained or cost-sensitive situations, a mono configuration can provide adequate audio performance while reducing device complexity and manufacturing costs.

[0116] Specifically, the two-channel configuration uses two speaker units 20 to process the audio signals of the left and right channels respectively. In music appreciation and home theater applications, the two-channel configuration helps to enhance the immersion and detail performance of the sound effects, and meets the user's demand for high-quality sound effects.

[0117] Specifically, the tweeter and mid-treble unit adopt a dual-channel configuration, which can accurately display the sound field information of the left and right channels, enhance the spatial sense and layering of the sound effects, and allow users to experience a more realistic stereo effect.

[0118] Exemplarily, the speaker unit 20 of the technical solution of the present application may adopt the following configuration:

[0119] Subwoofer: Mono configuration is adopted to ensure the consistency and impact of low-frequency signals.

[0120] Mid-high frequency unit and tweeter: adopt two-channel configuration to show the stereo effect of music and dialogue.

[0121] Super tweeter: Depending on the scene requirements, you can choose mono to supplement the high-frequency details, or you can choose dual channels to enhance the sense of space and layering.

[0122] It is worth noting that users or manufacturers can flexibly choose mono or dual-channel configuration according to actual needs, and this application does not impose specific restrictions on this.

[0123] It can be understood that by providing optional configurations of mono or dual channels for the subwoofer, mid-high unit, tweeter and super tweeter, the system can flexibly adapt to different sound requirements. In addition, the optional configuration method also optimizes equipment cost and space utilization, providing users with a variety of audio solutions.

[0124] In some embodiments, the frequency division module 31 includes an active frequency division module 311 and a passive frequency division module 312 .

[0125] Specifically, the active frequency division module 311 is used to perform frequency division processing on the audio signal before the audio signal enters the power amplifier channel.

[0126] Specifically, active crossover uses digital signal processing technology (such as DSP algorithm) to accurately divide the frequency bands of audio signals, which can avoid signal attenuation and flexibly adjust the crossover point, thereby providing more accurate signal processing for each frequency band before the power amplifier, significantly improving the delicacy and dynamic range of the sound performance.

[0127] Specifically, the passive frequency division module 312 is used to perform frequency division processing on the input audio signal after the audio signal enters the power amplifier channel.

[0128] Specifically, passive frequency division uses circuit elements (such as inductors, capacitors, etc.) to achieve natural frequency division of signals, which can be combined with the physical characteristics of the speaker unit 20 to further optimize the stability and matching of the frequency band division and enhance the natural sound coloration effect of the audio output, especially in scenarios with high fidelity and high sound quality requirements.

[0129] It can be understood that the combination of active and passive frequency division takes into account the accuracy of digital frequency division and the naturalness of physical frequency division, and provides a comprehensive optimization solution for the frequency division and sound performance of multi-unit speakers. This frequency division mode can not only effectively avoid the distortion caused by frequency crossover, but also fully tap the performance potential of the speaker unit 20, ensuring that the sound quality performance of signals in different frequency bands is optimal, thereby further improving the auditory experience of the system.

[0130] In some embodiments, the scene presets include movie viewing presets.

[0131] Accordingly, the frequency division strategy, sound effect processing parameters and amplifier channels of the audio signal are selected according to the movie viewing preset to play the audio signal received by the system, including the following steps:

[0132] S10, calling the active frequency division module 311 to divide the audio signal received by the input module 10 into a super bass signal, a mid-high frequency signal and a treble signal.

[0133] Specifically, the control module 40 calls the active frequency division module 311 to divide the audio signal received by the input module 10 into a super bass signal, a mid-high frequency signal and a treble signal.

[0134] The active frequency division module 311 divides the signal of 20Hz-200Hz into sub-bass, 200Hz-2kHz into mid-high frequency, and above 2kHz into treble based on the preset frequency division points.

[0135] S11. According to the preset sound effect processing parameters for watching movies, the sound effect module 32 is called to perform independent sound effect enhancement processing for the subwoofer signal, the mid-high frequency signal and the treble signal.

[0136] Specifically, according to the preset sound effect processing parameters for movie watching, the sound effect module 32 is called to perform independent sound effect enhancement processing for the subwoofer signal, the mid-high frequency signal and the treble signal respectively.

[0137] Specifically, under the movie viewing preset, the sound effect module 32 performs the following processing:

[0138] For super bass signals, it enhances the low-frequency dynamic range and impact, and highlights the shocking bass effect.

[0139] For mid-range and high-frequency signals, the clarity of speech and the expressiveness of dialogue are optimized to ensure that the dialogue content is clearly discernible.

[0140] For treble signals, it improves audio details and spatial sense, and enhances the layering of ambient and background sounds.

[0141] The sound effect module 32 performs the above processing through digital signal processing (DSP) technology, thereby achieving comprehensive optimization of the movie-watching sound effect.

[0142] S12, allocating the super bass signal, mid-high frequency signal and treble signal after the sound effect is enhanced to corresponding power amplifier channels for power amplification.

[0143] Among them, the independent design of the power amplifier channel ensures that each frequency band signal can be amplified to a power level suitable for the corresponding speaker unit 20, avoiding signal distortion or attenuation, thereby ensuring the consistency and stability of the sound quality.

[0144] S13, sending the power-amplified super bass signal, mid-high frequency signal and treble signal to the corresponding super bass audio unit 21, mid-high frequency audio unit 22 and treble audio unit 23 for playing.

[0145] Specifically, in the movie viewing mode, the subwoofer signal that has been processed and amplified by the subwoofer audio unit 21 can reproduce the shocking low-frequency effect. It is usually equipped with a large-diameter subwoofer or a low-frequency diaphragm to ensure the strong performance of the low-frequency signal.

[0146] The mid-high frequency signals after sound effect processing and power amplification are played through the mid-high frequency audio unit 22, which can accurately restore and enhance voice clarity and music expression.

[0147] The treble signal after sound effect processing and power amplification is played through the treble audio unit 23, which can show the ambient sound, background sound and high-frequency details, making the overall sound effect more layered. Optionally, the tweeter unit is made of paper membrane material and plays high-frequency band (2kHz-20kHz) signals. The paper membrane unit, with its lightweight characteristics, can quickly respond to signal changes, bringing soft and realistic sound performance, which is suitable for showing details in music and dialogue.

[0148] It can be understood that since this embodiment adopts the preset of the viewing scene and combines the active frequency division module 311, the sound effect module 32 and the collaborative processing of the power amplifier channel, the low-frequency, medium-high-frequency and high-frequency signals in the movie soundtrack are accurately optimized. This design ensures the shocking bass, clear dialogue and rich details in the viewing scene, providing users with an immersive and high-quality viewing sound experience. Users can enjoy cinema-level sound effects by switching to the viewing mode with one click, without manually adjusting the equipment, which significantly improves the convenience and intelligence level of the system.

[0149] In some embodiments, the scene presets include movie viewing presets.

[0150] Accordingly, the frequency division strategy, sound effect processing parameters and amplifier channels of the audio signal are selected according to the movie viewing preset to play the audio signal received by the system, including the following steps:

[0151] S20: Copy the audio signal received by the input module 10 into a first audio signal and a second audio signal.

[0152] Among them, the first audio signal is used for active frequency division and main frequency band sound enhancement processing, and the second audio signal is reserved as an independent processing preparation signal for the ultra-high frequency band, thereby realizing the coordinated work of active frequency division and passive frequency division.

[0153] Specifically, if the input audio signal is a digital signal, a digital signal processing module (DSP) in the system processes the received audio data and implements signal replication by creating two independent buffers of the audio data.

[0154] If the input audio signal is an analog signal, the system distributes the input signal to two output paths by using a signal distribution circuit (such as an operational amplifier or a shunt circuit). Path one sends the first signal to the active frequency division module 311; path two directly sends the second signal to the power amplifier channel corresponding to the super tweeter audio unit 24.

[0155] S21, calling the active frequency division module 311 to divide the first audio signal into a super bass signal, a mid-high frequency signal and a treble signal.

[0156] Specifically, the active frequency division module 311 divides the first audio signal into multiple frequency bands according to preset frequency division points (such as below 200Hz for subwoofer, 200Hz-2kHz for mid-high frequency, and above 2kHz for treble), ensuring the accuracy of frequency band division to optimize the audio performance of each unit.

[0157] S22, according to the preset sound effect processing parameters of the movie, calling the sound effect module 32 to perform independent sound effect enhancement processing for the subwoofer signal, the mid-high frequency signal and the treble signal respectively.

[0158] Specifically, according to the preset sound effect processing parameters for movie watching, the sound effect module 32 is called to perform independent sound effect enhancement processing for the subwoofer signal, the mid-high frequency signal and the treble signal respectively.

[0159] Specifically, under the movie viewing preset, the sound effect module 32 performs the following processing:

[0160] For super bass signals, it enhances the low-frequency dynamic range and impact, and highlights the shocking bass effect.

[0161] For mid-range and high-frequency signals, the clarity of speech and the expressiveness of dialogue are optimized to ensure that the dialogue content is clearly discernible.

[0162] For treble signals, it improves audio details and spatial sense, and enhances the layering of ambient and background sounds.

[0163] The sound effect module 32 performs the above processing through digital signal processing (DSP) technology, thereby achieving comprehensive optimization of the movie-watching sound effect.

[0164] S23, allocating the super bass signal, mid-high frequency signal and treble signal after the sound effect enhancement to the corresponding power amplifier channels for power amplification, and allocating the second audio signal to the power amplifier channel corresponding to the super high frequency audio unit 24 for power amplification.

[0165] Among them, the independent design of the power amplifier channel ensures that each frequency band signal can be amplified to a power level suitable for the corresponding speaker unit 20, avoiding signal distortion or attenuation, thereby ensuring the consistency and stability of the sound quality.

[0166] S24, calling the passive frequency division module 312 to divide the second audio signal after power amplification to obtain a super high frequency signal.

[0167] Specifically, the passive frequency division module 312 physically divides the signal through components such as inductors and capacitors, which can naturally isolate the ultra-high frequency band signal and provide high-fidelity audio input for the ultra-tweeter unit.

[0168] S25, sending the power-amplified subwoofer signal, mid-high frequency signal and treble signal to the corresponding subwoofer audio unit 21, mid-high frequency audio unit 22 and treble audio unit 23 for playback, and sending the super treble signal obtained by passive frequency division to the super treble audio unit 24 for playback.

[0169] Specifically, in the movie viewing mode, the subwoofer signal that has been processed and amplified by the subwoofer audio unit 21 can reproduce the shocking low-frequency effect. It is usually equipped with a large-diameter subwoofer or a low-frequency diaphragm to ensure the strong performance of the low-frequency signal.

[0170] The mid-high frequency signals after sound effect processing and power amplification are played through the mid-high frequency audio unit 22, which can accurately restore and enhance voice clarity and music expression.

[0171] The treble signal after sound effect processing and power amplification is played through the treble audio unit 23, which can show the ambient sound, background sound and high-frequency details, making the overall sound effect more layered. Optionally, the tweeter unit is made of paper membrane material and plays high-frequency band (2kHz-20kHz) signals. The paper membrane unit, with its lightweight characteristics, can quickly respond to signal changes, bringing soft and realistic sound performance, which is suitable for showing details in music and dialogue.

[0172] The super tweeter audio unit 24 plays the super tweeter signal obtained by power amplification and then passive frequency division, which can show delicate ambient sound and spatial sense, making the sound field performance more realistic. Optionally, the super tweeter unit is made of silk membrane material. The silk membrane unit has excellent flexibility and damping characteristics, which can effectively eliminate the sharp feeling of high frequency, while showing more delicate high frequency details and spatial sense, making the background sound and ambient sound more real and natural.

[0173] It can be understood that, because this embodiment uses the collaborative processing of active and passive frequency division to allocate the low-frequency, medium-frequency, high-frequency and ultra-high-frequency signals of the movie audio signal to the corresponding audio units respectively, and combines independent sound enhancement and power amplifier amplification strategies to achieve accurate optimization and playback of multi-band signals. In this way, users can enjoy a cinema-level high-fidelity sound experience through simple movie scene presets without complicated settings and debugging, which significantly improves the system's intelligence level, convenience and auditory expressiveness.

[0174] In some embodiments, the scene preset includes a singing preset. When in the singing preset, the input module 10 receives an audio signal including a vocal audio signal and an accompaniment audio signal.

[0175] Among them, the accompaniment audio signal refers to the background music signal used to assist singing, which is usually composed of various musical instrument sounds or music mixes to enhance the singing atmosphere and rhythm. The accompaniment audio signal can be input into the system in a variety of ways, such as a local storage device, a streaming platform, or through a wired connection, such as receiving the accompaniment signal from a player or a mixing console through an AUX, optical fiber, or coaxial input interface.

[0176] The human voice audio signal refers to the sound signal transmitted by the user through the microphone when singing or speaking. The human voice audio signal can be received through a dedicated microphone input channel. The system can receive the human voice audio signal through a microphone input interface (such as XLR, TRS or 3.5mm audio interface), a wireless microphone (such as UHF, VHF or Bluetooth), a built-in microphone and other interfaces.

[0177] Further, the frequency division strategy, sound effect processing parameters and power amplifier channels of the audio signal are selected according to the singing preset to play the audio signal received by the system, including the following steps:

[0178] S30, calling the active frequency division module 311 to divide the accompaniment audio signal into a super bass signal, and to divide the human voice audio signal into a mid-high frequency signal and a treble signal.

[0179] Specifically, in singing mode, the subwoofer signal (20Hz-200Hz) is mainly used to express the low-frequency instrument sound effects of the accompaniment, such as drums and bass, to enhance the rhythm and shock of the accompaniment.

[0180] The mid-high frequency signal (200Hz-2kHz) highlights the main part of the human voice, covers the main timbre range of the human voice, and ensures clarity and fullness.

[0181] The treble signal (above 2kHz) shows the details of the human voice, such as articulation and treble parts, and enhances the layering of the sound quality.

[0182] S31, according to the preset sound effect processing parameters for singing, calling the sound effect module 32 to perform independent sound effect enhancement processing for the sub-bass signal, the mid-high pitch signal and the treble signal respectively.

[0183] Specifically, according to the preset sound effect processing parameters of singing, the sound effect module 32 is called to independently enhance the divided audio signal.

[0184] For super bass signals, it enhances low-frequency dynamics and strength, highlights the bass performance of the accompaniment, and makes the rhythm more impactful.

[0185] For mid- and high-frequency signals, by improving clarity and equalization, the vocal performance is made fuller and more pleasant, and the voice and tone are clear and distinct.

[0186] For treble signals, the expressiveness and brightness of the human voice are enhanced by enhancing details and space sense, making the treble part more transparent.

[0187] S32, allocating the super bass signal, mid-high frequency signal and treble signal after the sound effect is enhanced to corresponding power amplifier channels for power amplification.

[0188] Among them, the independent design of the power amplifier channel ensures that the signal of each frequency band is accurately amplified and matched with the power requirement of the corresponding speaker unit 20 to avoid distortion or insufficient energy.

[0189] S33, sending the super bass signal, the mid-high frequency signal and the treble signal after the power amplification to the corresponding super bass audio unit 21, the mid-high frequency audio unit 22 and the treble audio unit 23 for playing.

[0190] Specifically, in the singing mode, the subwoofer signal after sound effect processing and power amplification is played through the subwoofer audio unit 21, which can provide a thick and shocking bass performance and enhance the rhythm and immersion of the accompaniment.

[0191] The mid-high frequency signal after sound effect processing and power amplification is played through the mid-high frequency audio unit 22, which can reproduce the main part of the human voice and ensure that the singing is clear and natural with full timbre.

[0192] The treble signal after sound effect processing and power amplification is played through the treble audio unit 23, which can present the treble details of the human voice, highlight the brightness and expressiveness of the treble area, and make the singing more pleasant to the ears.

[0193] It can be understood that this embodiment optimizes the accompaniment audio signal and the vocal audio signal respectively through the preset frequency division strategy and sound enhancement parameters for singing, making the accompaniment more impactful and rhythmic, and the vocal performance clearer, fuller and more detailed. The independent channel design of the power amplifier ensures the high-fidelity output of signals in different frequency bands. Each speaker unit 20 has a clear division of labor and works together to provide a high-quality singing experience. Users can achieve professional-level sound optimization through simple scene preset selection without complex adjustments, which significantly improves the intelligence level of the system and user experience.

[0194] In some embodiments, selecting a frequency division strategy, sound effect processing parameters, and a power amplifier channel of an audio signal according to a singing preset to play an audio signal received by the system includes:

[0195] S40: Copy the accompaniment audio signal into a first accompaniment audio signal and a second accompaniment audio signal.

[0196] Among them, the first accompaniment audio signal is used for active frequency division and main frequency band sound enhancement processing, and the second accompaniment audio signal is reserved as an independent processing preparation signal for the ultra-high frequency band, thereby realizing the coordinated work of active frequency division and passive frequency division.

[0197] Specifically, if the input accompaniment audio signal is a digital signal, a digital signal processing module (DSP) in the system processes the received audio data and implements signal duplication by creating two independent buffers of the audio data.

[0198] If the input accompaniment audio signal is an analog signal, the system distributes the input signal to two output paths by using a signal distribution circuit (such as an operational amplifier or a shunt circuit). Path one sends the first signal to the active frequency division module 311; path two directly sends the second signal to the power amplifier channel corresponding to the super tweeter audio unit 24.

[0199] S41, calling the active frequency division module 311 to divide the first accompaniment audio signal into a super bass signal, and to divide the human voice audio signal into a mid-high frequency signal and a treble signal.

[0200] Specifically, the active frequency division module 311 divides the first accompaniment audio signal into multiple frequency bands according to preset frequency division points (such as below 200Hz for subwoofer, 200Hz-2kHz for mid-high frequency, and above 2kHz for treble), ensuring the accuracy of frequency band division to optimize the audio performance of each unit.

[0201] S42, according to the preset sound effect processing parameters for singing, calling the sound effect module 32 to perform independent sound effect enhancement processing for the sub-bass signal, the mid-high pitch signal and the treble signal respectively.

[0202] Specifically, according to the preset sound effect processing parameters of singing, the sound effect module 32 is called to independently enhance the divided audio signal.

[0203] For super bass signals, it enhances low-frequency dynamics and strength, highlights the bass performance of the accompaniment, and makes the rhythm more impactful.

[0204] For mid- and high-frequency signals, by improving clarity and equalization, the vocal performance is made fuller and more pleasant, and the voice and tone are clear and distinct.

[0205] For treble signals, the expressiveness and brightness of the human voice are enhanced by enhancing details and space sense, making the treble part more transparent.

[0206] S43, allocating the super bass signal, mid-high frequency signal and treble signal after the sound effect enhancement to the corresponding power amplifier channels for power amplification, and allocating the second accompaniment audio signal to the power amplifier channel corresponding to the super high frequency audio unit 24 for power amplification.

[0207] Among them, the independent design of the power amplifier channel ensures that the signal of each frequency band is accurately amplified and matched with the power requirement of the corresponding speaker unit 20 to avoid distortion or insufficient energy.

[0208] S44, calling the passive frequency division module 312 to divide the second accompaniment audio signal after power amplification to obtain a super high pitch signal.

[0209] Specifically, the ultra-high frequency band (usually above 20kHz) is naturally isolated through the passive frequency division circuit (components such as inductors and capacitors) for the ultra-high frequency unit to play. The ultra-high frequency unit obtained by the passive frequency division can cooperate to enhance the high-frequency details of the accompaniment.

[0210] S45, sending the power-amplified super bass signal, mid-high frequency signal and treble signal to the corresponding super bass audio unit 21, mid-high frequency audio unit 22 and treble audio unit 23 for playback, and sending the super treble signal obtained by passive frequency division to the super treble audio unit 24 for playback.

[0211] Specifically, in the singing mode, the subwoofer signal after sound effect processing and power amplification is played through the subwoofer audio unit 21, which can provide a thick and shocking bass performance and enhance the rhythm and immersion of the accompaniment.

[0212] The mid-high frequency signal after sound effect processing and power amplification is played through the mid-high frequency audio unit 22, which can reproduce the main part of the human voice and ensure that the singing is clear and natural with full timbre.

[0213] The treble signal after sound effect processing and power amplification is played through the treble audio unit 23, which can present the treble details of the human voice, highlight the brightness and expressiveness of the treble area, and make the singing more pleasant to the ears.

[0214] The super tweeter audio unit 24 plays the super tweeter signal obtained by power amplification and then passive frequency division, which can enhance the details of the high-frequency accompaniment and enhance the sense of space and the layering of the overall sound effect.

[0215] It can be understood that this embodiment, through the independent division and processing of the accompaniment audio signal and the vocal audio signal, through the combination of active division and passive division, and the efficient collaboration of the independent power amplifier channel and the speaker unit 20, the user can obtain a professional singing experience in the singing scene without complicated debugging, which significantly improves the convenience and intelligence level of the system.

[0216] In some embodiments, the scene presets include music presets.

[0217] Accordingly, the frequency division strategy, sound effect processing parameters and amplifier channels of the audio signal are selected according to the music preset to play the audio signal received by the system, including:

[0218] S50: Copy the audio signal received by the input module 10 into a first audio signal and a second audio signal.

[0219] Among them, the first audio signal is used for active frequency division and main frequency band sound enhancement processing, and the second audio signal is reserved as an independent processing preparation signal for the ultra-high frequency band, thereby realizing the coordinated work of active frequency division and passive frequency division.

[0220] Specifically, if the input audio signal is a digital signal, a digital signal processing module (DSP) in the system processes the received audio data and implements signal replication by creating two independent buffers of the audio data.

[0221] If the input audio signal is an analog signal, the system distributes the input signal to two output paths by using a signal distribution circuit (such as an operational amplifier or a shunt circuit). Path one sends the first signal to the active frequency division module 311; path two directly sends the second signal to the power amplifier channel corresponding to the super tweeter audio unit 24.

[0222] 51. Call the active frequency division module 311 to divide the first audio signal to obtain a super bass signal.

[0223] Specifically, the active frequency division module 311 is called to perform frequency division processing on the first audio signal to extract the super bass signal. The frequency division point of the super bass is usually set below 200 Hz, covering the frequency band required by bass instruments (such as drums and bass). Among them, the super bass signal is the core of the low-frequency performance of the music, enhancing the shock and rhythm of the music.

[0224] S52: According to the preset sound effect processing parameters of the music, the sound effect module 32 is called to perform sound effect enhancement processing on the super bass signal.

[0225] Specifically, the sound effect enhancement of the subwoofer signal can be performed as follows according to the sound effect processing parameters:

[0226] Dynamic Extension: Improve the dynamic range of low frequencies and enhance the layering of bass.

[0227] Equalization optimization: Smooth low-frequency response curve to ensure natural and full bass performance.

[0228] Low frequency enhancement: Enhance the bass impact and make the music rhythm more distinct.

[0229] S53, allocating the super bass signal after the sound effect enhancement to the power amplifier channel corresponding to the super bass audio unit 21 for power amplification, and allocating the second audio signal to the power amplifier channel corresponding to the super tweeter audio unit 24 for power amplification.

[0230] S54, calling the passive frequency division module 312 to divide the second audio signal after power amplification to obtain a super high frequency signal.

[0231] Specifically, the passive frequency division module 312 uses inductance and capacitance elements to physically divide the signal, isolate the ultra-high frequency band (above 20kHz), and ensure the purity and delicacy of the high frequency content.

[0232] S55, sending the power-amplified super bass signal to the corresponding super bass audio unit 21 for playing, and sending the super treble signal obtained by passive frequency division to the super treble audio unit 24 for playing.

[0233] Specifically, in the music mode, the subwoofer audio unit 21 plays the subwoofer signal after sound effect processing and power amplification, which can provide a strong and shocking bass performance and enhance the immersive feeling of music.

[0234] The ultra-treble signal obtained by passive frequency division after power amplification through the ultra-treble audio unit 24 can accurately restore the high-frequency details of the music, such as treble elements such as strings and cymbals, making the sound quality more transparent and layered.

[0235] It can be understood that this embodiment divides, enhances and plays audio signals in high fidelity through music presets, significantly improving the low-frequency shock and high-frequency detail performance of music. In addition, by selecting music scene presets, users can get professional-level music appreciation effects with one click without manually adjusting the device, which significantly improves the intelligence level of the system and user experience.

[0236] like Figure 2 As shown, based on the hardware architecture of the intelligent frequency division multi-scene sound effect control combined audio system of the above embodiment, the technical solution of the present application also proposes an intelligent frequency division multi-scene sound effect control method, comprising the following steps:

[0237] S110: Receive audio signals, where the audio signals include audio signals from different audio sources.

[0238] Among them, audio signals from different audio sources include digital audio signals and analog audio signals.

[0239] Specifically, the system supports multiple input methods, such as AUX, optical fiber, Bluetooth, Wi-Fi, etc., to receive audio signals from players, streaming devices or microphones. The input module can perform compatible analysis of multiple audio formats, including digital signals and analog signals.

[0240] S120, determining a scene preset required for playing audio according to a scene preset selection instruction;

[0241] Among them, scene preset refers to a set of audio processing parameters and hardware configuration strategies pre-configured by the sound system according to the needs of different usage scenarios, which is used to dynamically optimize the sound performance and user experience. Through scene preset, users do not need to manually adjust complex sound parameters, just select the required scene, and the system will automatically load the corresponding sound processing solution to achieve the best playback effect.

[0242] Specifically, the preset scenes include music mode, movie mode, singing mode, game mode, etc. Each scene preset corresponds to a specific frequency division strategy, sound effect processing parameters and amplifier channel configuration.

[0243] It can be understood that through scene presets, users only need to select the scene with one click, and the system can load the optimal configuration. It is easy to operate and has wide applicability.

[0244] Optionally, users can select scene presets through physical buttons, touch screen, mobile application or voice command, and the system automatically loads the corresponding configuration.

[0245] S130 , selecting a frequency division strategy, sound effect processing parameters, and a power amplifier channel for processing the audio signal according to the determined scene preset.

[0246] Specifically, the frequency division strategy selection refers to calling the active frequency division module to divide the audio signal, such as dividing the signal into different frequency bands such as bass, mid-range, and treble; or calling the passive frequency division module to divide the audio into ultra-high frequency bands.

[0247] The sound effect processing parameter selection refers to calling the sound effect module to enhance the signals of each frequency band, such as bass enhancement, dynamic range compression, treble detail optimization, etc., so that the audio signals of each frequency band meet the best or better listening experience of the current scene.

[0248] Amplifier channel selection refers to calling some or all of the amplifier channels in the amplifier module according to scene presets to amplify the processed signals and distribute them to the corresponding speaker units.

[0249] In this way, flexible audio signal processing capabilities can be provided to ensure the best sound performance in different scenarios. It can also dynamically adapt to the characteristics of the audio unit to improve the accuracy and stability of the sound quality output.

[0250] S140: Invoke the audio unit corresponding to the selected power amplifier channel to play the received audio signal.

[0251] Specifically, according to the frequency division results, the low-frequency signal, mid-frequency signal, high-frequency signal and ultra-high-frequency signal are sent to the subwoofer, mid-high unit, tweeter and super tweeter respectively. Then, each unit processes the assigned signal independently and works together to restore the full-band sound effect.

[0252] It can be understood that the intelligent frequency division and multi-scene sound effect control method proposed in this application can flexibly adjust the audio signal processing strategy and power amplifier allocation by receiving multi-source signals and dynamically selecting scene presets. In this way, it provides strong support for the optimization of multi-scene sound effects, allowing users to easily achieve sound effect restoration in a variety of professional scenarios with only a set of standard equipment and scene selection functions, without the need for professional knowledge or manual debugging of equipment.

[0253] At the same time, compared with the traditional DIY product model, the audio system of this application is not only easy to operate through standardized and highly integrated design, but also can significantly reduce learning costs and equipment costs while maintaining high performance and multi-functions, bringing users a more intelligent, multi-scenario, easy-to-use and cost-effective audio solution.

[0254] It can be seen that compared with the traditional DIY product model, the audio system of the technical solution of this application has the advantages of intelligence, multi-scene sound experience, low learning cost, low cost, and high integration.

[0255] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0256] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0257] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1A function specified in one or more boxes.

[0258] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0259] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0260] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An intelligent frequency division multi-scene sound effect control combination audio system, characterized in that: include: An input module, used to receive an input of at least one audio signal; The speaker unit comprises at least one super high frequency audio unit, at least one treble audio unit, at least one mid-high frequency audio unit and at least one super bass audio unit; The audio signal processing module is electrically connected to the input module and the speaker unit respectively, and is used to process the input audio signal and send it to the speaker unit. The audio signal processing module includes a frequency division module, a sound effect module and a power amplifier module, wherein: The frequency division module is used to perform frequency division processing on the input audio signal according to different frequency bands. The sound effect module is used to perform sound effect enhancement processing on the divided audio signal. The power amplifier module has a plurality of independent power amplifier channels, each of which corresponds to an audio unit in the speaker unit, and is used to amplify the audio signal before or after frequency division to a power level matching the corresponding audio unit; as well as The control module is electrically connected to the audio signal processing module and is used to preset and select the frequency division strategy, sound effect processing parameters and power amplifier channels of the audio signal according to different scenarios to play the audio signal received by the system.

2. The intelligent frequency division multi-scene sound effect control combined audio system according to claim 1, characterized in that: The frequency division module includes an active frequency division module and a passive frequency division module, wherein: The active frequency division module is used to perform frequency division processing on the audio signal before the audio signal enters the power amplifier channel; The passive frequency division module is used to perform frequency division processing on the audio signal after the audio signal enters the power amplifier channel.

3. The intelligent frequency division multi-scene sound effect control combined audio system according to claim 2, characterized in that: The scene presets include movie viewing presets; Select the frequency division strategy, sound processing parameters and amplifier channels of the audio signal according to the movie viewing preset to play the audio signal received by the system, including: Calling the active frequency division module to divide the audio signal received by the input module into a super bass signal, a mid-high frequency signal and a treble signal; According to the preset sound effect processing parameters of the movie, the sound effect module is called to perform independent sound effect enhancement processing for the super bass signal, the mid-high frequency signal and the treble signal respectively; Allocate the super bass signal, mid-high frequency signal and treble signal after the sound effect is enhanced to the corresponding power amplifier channels for power amplification; The power-amplified super bass signal, mid-high frequency signal and treble signal are sent to the corresponding super bass audio unit, mid-high frequency audio unit and treble audio unit for playback.

4. The intelligent frequency division multi-scene sound effect control combined audio system according to claim 2, characterized in that: The scene presets include movie viewing presets; Select the frequency division strategy, sound processing parameters and amplifier channels of the audio signal according to the movie viewing preset to play the audio signal received by the system, including: Copying the audio signal received by the input module into a first audio signal and a second audio signal; Invoking an active frequency division module to divide the first audio signal into a subwoofer signal, a mid-high frequency signal and a treble signal; According to the preset sound effect processing parameters of the movie, the sound effect module is called to perform independent sound effect enhancement processing for the super bass signal, the mid-high frequency signal and the treble signal respectively; Allocate the super bass signal, mid-high frequency signal and treble signal after the sound effect enhancement to the corresponding power amplifier channels for power amplification, and allocate the second audio signal to the power amplifier channel corresponding to the super high frequency audio unit for power amplification; Calling the passive frequency division module to divide the second audio signal after power amplification to obtain a super high frequency signal; The power-amplified subwoofer signal, mid-high frequency signal and treble signal are sent to the corresponding subwoofer audio unit, mid-high frequency audio unit and treble audio unit for playback, and the super treble signal obtained by passive frequency division is sent to the super treble audio unit for playback.

5. The intelligent frequency division multi-scene sound effect control combined audio system according to claim 2, characterized in that: The scene preset includes a singing preset, and when in the singing preset, the input module receives an audio signal including a human voice audio signal and an accompaniment audio signal; Select the frequency division strategy, sound effect processing parameters and amplifier channels of the audio signal according to the singing preset to play the audio signal received by the system, including: Calling the active frequency division module to divide the accompaniment audio signal into a super bass signal, and to divide the human voice audio signal into a mid-high pitch signal and a treble signal; According to the preset sound effect processing parameters for singing, the sound effect module is called to perform independent sound effect enhancement processing for the super bass signal, the mid-high pitch signal and the treble signal respectively; Allocate the super bass signal, mid-high frequency signal and treble signal after the sound effect is enhanced to the corresponding power amplifier channels for power amplification; The power-amplified super bass signal, mid-high frequency signal and treble signal are sent to the corresponding super bass audio unit, mid-high frequency audio unit and treble audio unit for playback.

6. The intelligent frequency division multi-scene sound effect control combined audio system according to claim 2, characterized in that: The scene preset includes a singing preset, and when in the singing preset, the input module receives an audio signal including a human voice audio signal and an accompaniment audio signal; Select the frequency division strategy, sound effect processing parameters and amplifier channels of the audio signal according to the singing preset to play the audio signal received by the system, including: duplicating the accompaniment audio signal into a first accompaniment audio signal and a second accompaniment audio signal; Invoking an active frequency division module to divide the first accompaniment audio signal into a super bass signal, and to divide the human voice audio signal into a mid-high pitch signal and a treble signal; According to the preset sound effect processing parameters of singing, the sound effect module is called to perform independent sound effect enhancement processing for the super bass signal, the mid-high pitch signal and the treble signal respectively; Allocating the super bass signal, mid-treble signal and treble signal after the sound effect enhancement to the corresponding power amplifier channels for power amplification, and allocating the second accompaniment audio signal to the power amplifier channel corresponding to the super treble audio unit for power amplification; Calling the passive frequency division module to divide the second accompaniment audio signal after power amplification to obtain a super high pitch signal; The power-amplified subwoofer signal, mid-high frequency signal and treble signal are sent to the corresponding subwoofer audio unit, mid-high frequency audio unit and treble audio unit for playback, and the super treble signal obtained by passive frequency division is sent to the super treble audio unit for playback.

7. The intelligent frequency division multi-scene sound effect control combined audio system according to claim 2, characterized in that: The scene preset includes music preset; Select the frequency division strategy, sound effect processing parameters and amplifier channels of the audio signal according to the music preset to play the audio signal received by the system, including: Copying the audio signal received by the input module into a first audio signal and a second audio signal; Invoke an active frequency division module to divide the first audio signal to obtain a super bass signal; According to the preset sound effect processing parameters of the music, calling the sound effect module to perform sound effect enhancement processing on the super bass signal; Allocating the super bass signal after the sound effect enhancement to the power amplifier channel corresponding to the super bass audio unit for power amplification, and allocating the second audio signal to the power amplifier channel corresponding to the super tweeter audio unit for power amplification; Calling the passive frequency division module to divide the second audio signal after power amplification to obtain a super high frequency signal; The power-amplified super bass signal is sent to the corresponding super bass audio unit for playback, and the super treble signal obtained by passive frequency division is sent to the super treble audio unit for playback.

8. The intelligent frequency division multi-scene sound effect control combined audio system according to any one of claims 1 to 7, characterized in that: At least one of the subwoofer, the mid-high frequency unit, the tweeter, and the super tweeter is configured as a single channel or a dual channel.

9. The intelligent frequency division multi-scene sound effect control combined audio system according to any one of claims 1 to 7, characterized in that: The system also includes a user interface for receiving scene preset selection instructions and sound effect processing parameter adjustment instructions input by a user, and displaying the current system status.

10. An intelligent frequency division multi-scene sound effect control method, characterized in that: The method comprises: receiving audio signals, wherein the audio signals include audio signals from different audio sources; Determine the scene preset required for playing audio according to the scene preset selection instruction; Selecting a frequency division strategy, sound effect processing parameters, and power amplifier channels for processing audio signals according to the determined scene presets; The audio unit corresponding to the selected power amplifier channel is called to play the received audio signal.

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