Audio signal transmission device, audio equipment and audio signal playing method

Abstract

The invention provides an audio signal transmission device, audio equipment and an audio signal playing method. The audio signal transmission device comprises a receiving module used for receiving a sound source signal; the frequency division module is used for conducting frequency division on the sound source signal to obtain a first audio signal and a second audio signal, the frequency of the first audio signal is smaller than a preset frequency threshold value, and the frequency of the second audio signal is larger than or equal to the preset frequency threshold value; the sending module is used for sending the first audio signal to a first audio playing device and sending the second audio signal to a second audio playing device, the bass quality of the first audio playing device is better than that of the second audio playing device, and the bass quality of the second audio playing device is better than that of the first audio playing device. The high pitch quality of the first audio playing device is lower than that of the second audio playing device. According to the embodiment of the invention, good surround sound effect and bass performance can be realized.

Description

Technical Field

[0001] The present application relates to the field of audio technology, and in particular to an audio signal transmission device, an audio device, and an audio signal playing method. Background Art

[0002] With the rapid development of electronic products, various elegant audio equipment, such as home audio and soundbars, are widely used in people's work and home environments. These audio equipment are usually small in size and have excellent treble quality. With the widespread use of wired headphones, Bluetooth headphones, and true wireless stereo headphones, it is very common for consumers to use headphones in their lives and work. Although they have both small audio equipment and headphones, it is still difficult to achieve satisfactory bass and stereo sound quality. Summary of the invention

[0003] The present application provides an audio signal transmission device, an audio device, and an audio signal playback method, which are helpful to improve the sound quality effect of both bass and stereo. The following is an introduction to various aspects involved in the present application.

[0004] In a first aspect, the present application provides an audio signal transmission device, comprising: a receiving module, used to receive a sound source signal; a frequency division module, used to divide the sound source signal to obtain a first audio signal and a second audio signal, the frequency of the first audio signal is less than a preset frequency threshold, and the frequency of the second audio signal is greater than or equal to the preset frequency threshold; a sending module, used to send the first audio signal to a first audio playback device, and send the second audio signal to a second audio playback device, the bass quality of the first audio playback device is better than the bass quality of the second audio playback device, and the treble quality of the first audio playback device is lower than the treble quality of the second audio playback device.

[0005] In a second aspect, the present application provides an audio device, which is a second audio playback device, and the second audio playback device includes: a receiving module for receiving a sound source signal; a frequency division module for dividing the sound source signal to obtain a first audio signal and a second audio signal, the frequency of the first audio signal is less than a preset frequency threshold, and the frequency of the second audio signal is greater than or equal to the preset frequency threshold; a sending module for sending the first audio signal to the first audio playback device for playback; a playing module for playing the second audio signal; the bass quality of the first audio playback device is better than the bass quality of the second audio playback device, and the treble quality of the first audio playback device is lower than the treble quality of the second audio playback device.

[0006] In a third aspect, the present application provides a method for playing an audio signal, comprising: dividing the frequency of a received sound source signal to obtain a first audio signal and a second audio signal, wherein the frequency of the first audio signal is less than a preset frequency threshold, and the frequency of the second audio signal is greater than or equal to the preset frequency threshold; sending the first audio signal to a first audio playback device, and sending the second audio signal to a second audio playback device; controlling the first audio playback device to play the first audio signal, and the second audio playback device to play the second audio signal; wherein the bass quality of the first audio playback device is better than the bass quality of the second audio playback device, and the treble quality of the first audio playback device is lower than the treble quality of the second audio playback device.

[0007] In a fourth aspect, the present application provides an audio signal playback device, comprising: a memory for storing code; and a processor connected to the memory, for executing the code stored in the memory, so that the audio signal playback device performs the method described in the third aspect.

[0008] In a fifth aspect, the present application provides an audio playback system, which includes a first audio playback device and a second audio playback device, the bass quality of the first audio playback device is better than the bass quality of the second audio playback device, and the treble quality of the first audio playback device is lower than the treble quality of the second audio playback device, and the second audio playback device includes: a receiving module for receiving a sound source signal; a frequency division module for dividing the sound source signal to obtain a first audio signal and a second audio signal, the frequency of the first audio signal is less than a preset frequency threshold, and the frequency of the second audio signal is greater than or equal to the preset frequency threshold; a sending module for sending the first audio signal to the first audio playback device; a playing module for playing the second audio signal; and the first audio playback device is used to play the first audio signal.

[0009] In a sixth aspect, the present application provides a non-volatile computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, it can implement the method described in the third aspect.

[0010] In a seventh aspect, the present application provides a computer program product, which, when executed on an electronic device, enables the electronic device to implement the method described in the third aspect.

[0011] The embodiment of the present application combines the respective sound quality advantages of the existing first audio playback device and the second audio playback device, divides the sound source signal into a first audio signal with bass and a second audio signal with mid-high frequencies, and the first audio playback device plays back the bass signal, while the second audio playback device plays back the mid-high frequencies, thereby obtaining a better surround sound effect and bass performance than any single audio playback device, and achieving excellent surround sound effect and bass performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in describing the embodiments of the present application are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of a sound system.

[0014] Figure 2 yes Figure 1 Schematic diagram of the flow of audio signals in the speaker shown.

[0015] Figure 3 It is a schematic diagram of the appearance of a stereo speaker.

[0016] Figure 4 is a schematic diagram of an audio signal transmission device provided in an embodiment of the present application.

[0017] Figure 5 It is a schematic diagram of an audio device provided in an embodiment of the present application.

[0018] Figure 6 It is a schematic diagram of an audio playback system provided in an embodiment of the present application.

[0019] Figure 7 yes Figure 5 Schematic diagram of application scenarios of audio devices shown.

[0020] Figure 8 yes Figure 7 Schematic diagram of the flow of audio signals in the application scenario shown.

[0021] Fig. 9 It is a flowchart of the method for playing an audio signal provided in an embodiment of the present application.

[0022] Fig.10 It is a schematic diagram of component units / partial component units of the audio signal playback device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The same or similar reference numerals are used in the drawings to represent the same or similar modules. It should be understood that the drawings are only schematic, and the protection scope of the present application is not limited thereto.

[0024] First, the application scenarios involved in the embodiments of the present application are introduced.

[0025] With the rapid development of electronic products, various elegant audio equipment, such as home audio and soundbar, are widely used in people's work and home environments. From the configuration form, the speaker is an electronic device composed of one or more speaker units combined by frequency division and placed in a closed or open box, such as Figure 1 The function of the box is to avoid acoustic short circuit and ensure bass performance.

[0026] Figure 2 yes Figure 1 The schematic diagram of the flow of audio signals of the speakers is shown in FIG. Figure 2 As shown, after an audio signal is input through the audio source player 110, the audio signal flows from the power amplifier 120 to the speaker 130, and then radiates sound outward.

[0027] Usually the bass performance of a speaker is closely related to the size of the speaker unit and the volume of the cabinet. Generally speaking, the larger the speaker unit and the cabinet volume, the better the bass dive and volume. You can combine two separate speakers or two integrated speakers into a stereo sound system, such as Figure 3 As shown, the stereo sound system includes a left speaker and a right speaker. Compared with a monophonic sound system, a stereo sound system can widen the sound image width of the reproduced sound, making the sound closer to nature and more pleasant to listen to. Figure 3 The speaker shown may be a SoundBar, which is also called a sound bar speaker. It is a bar-shaped audio device that integrates multiple-channel speakers and a power amplifier in a long strip box.

[0028] User use Figure 3 When listening to ordinary music with such an integrated speaker, the width of the sound image is basically located between the two speaker units. If you want to further widen the stereo width, you need to add some digital signal processing (DSP) algorithms. This can widen the entire sound image and even achieve a surround sound effect, making the stereo sound track wider in the sound field and enhancing the audience's sense of immersion and space. This widening effect is especially effective for mid- and high-frequency signals.

[0029] The performance of speakers of different specifications varies. Some speakers have excellent treble performance, while others have excellent bass performance. These audio devices, which are widely used in people's work and home environments, are usually small in size and have excellent treble quality, but due to their size, they usually have poor bass quality.

[0030] Wired headphones, wireless headphones, especially true wireless stereo (TWS) headphones, have attracted the attention of many consumers due to their compact size, portability and ease of use. With the widespread use of Bluetooth headphones and TWS headphones, it has become very common for consumers to use wireless headphones in their daily lives and work, such as listening to music and making phone calls.

[0031] Headphones come in many forms, such as in-ear, semi-in-ear, head-mounted, open-ear, etc. Headphones use the resonance principle in physics. When the external sound frequency is the same as the natural frequency of the headphones, the headphones will produce strong vibrations, thereby producing better bass effects. Because its sound-generating principle is different from that of speakers, it can produce deep bass and loud volume with a very small size. For example, the length of a soundbar is usually less than 40 cm. This feature gives headphones an advantage in bass performance. However, headphones have a head-in-the-head effect, and even with DSP algorithms, it is difficult to achieve satisfactory stereo or surround sound effects.

[0032] The head-in effect refers to the unnatural feeling of the sound field caused by the lack of depth of the headphone's vertical sound field and the headphone unit being too close to the ear. This effect will give the listener the illusion that the instrument is being played inside the head, which means that when listening to music, it seems as if the instrument exists in the brain rather than in space.

[0033] Therefore, even if you have compact and elegant audio equipment and headphones in your home or office environment, it is still difficult to obtain satisfactory bass and stereo (or surround sound) effects.

[0034] It should be noted that the above-mentioned problem that small-sized audio equipment and headphones have difficulty in achieving satisfactory bass and stereo is only an example. The embodiments of the present application can be applied to any type of scenario where multiple different audio equipment have difficulty in achieving satisfactory bass and stereo effects.

[0035] Therefore, it is necessary to design an audio playback technology solution with both good bass and stereo effects.

[0036] Based on this, the present application embodiment proposes an audio signal transmission device. Figure 4 The audio signal transmission device of the embodiment of the present application is described in detail. Figure 4As shown, the audio signal transmission device 400 of the embodiment of the present application may mainly include a receiving module 410 , a frequency division module 420 and a sending module 430 .

[0037] The receiving module 410 is used to receive the audio source signal. The receiving module 410 can be a module using a wired communication method or a module using a wireless communication method. Alternatively, the receiving module 410 can be a module using both a wired communication method and a wireless communication method.

[0038] The frequency division module 420 is used to divide the frequency of the audio source signal to obtain a first audio signal and a second audio signal, wherein the frequency of the first audio signal is less than a preset frequency threshold, and the frequency of the second audio signal is greater than or equal to the preset frequency threshold.

[0039] The frequency division module 420 may be, for example, a frequency divider, which can distinguish audio source signals of different frequency bands, amplify them respectively, and then send them to the speaker units of the corresponding frequency bands for playback.

[0040] In some embodiments, the preset frequency threshold may be, for example, 150 Hz, 200 Hz, or 250 Hz. Usually 20-250 Hz is a bass signal. For example, when the preset frequency threshold is 250 Hz, the first audio signal may be called a bass signal, and the second audio signal may be a mid-high frequency signal.

[0041] The sending module 430 is used to send the first audio signal to the first audio playback device and send the second audio signal to the second audio playback device. The first audio playback device includes a plurality of speaker units corresponding to low frequency and medium and high frequency respectively, and the second audio playback device also includes a plurality of speaker units corresponding to low frequency and medium and high frequency respectively. The bass quality of the first audio playback device is better than the bass quality of the second audio playback device, and the treble quality of the first audio playback device is lower than the treble quality of the second audio playback device. It is understandable that the first audio playback device can be a single audio playback device or multiple audio playback devices. The second audio playback device can be a single audio playback device or multiple audio playback devices.

[0042] The sending module 430 can send the first audio signal to the first audio playback device by wired communication or wireless communication. The sending module 430 can send the second audio signal to the second audio playback device by wired communication or wireless communication.

[0043] In some implementations, the first audio playback device may be an open-type headset, which is popular because it does not hurt the ears, such as an ear-hook headset. The second audio playback device may be a speaker or a soundbar, which may use a DSP algorithm to achieve a good surround sound effect.

[0044] In some implementations, the audio signal transmission device 400 can be integrated into the second audio playback device, and the sending module 430 is connected to the second audio playback device by wire. The second audio playback device has good mid-high performance, is usually larger than the first audio playback device, and has an internal space that is easy to arrange. The sending module 430 can use a wired communication method or a wireless communication method to send the first audio signal to the first audio playback device.

[0045] In other implementations, the audio signal transmission device 400 may also be integrated into the first audio playback device, and the sending module 430 and the first audio playback device are connected by wire. The sending module 430 may send the second audio signal to the second audio playback device by wired communication or wireless communication.

[0046] In some implementations, the audio signal transmission device 400 may further include a delay unit. The delay unit is used to make the difference between the play timing of the second audio signal and the play timing of the first audio signal less than a preset time difference threshold, so as to ensure that the second audio signal and the first audio signal are played simultaneously. The preset time difference threshold may be, for example, 20 milliseconds or 30 milliseconds.

[0047] In some embodiments, the delay unit may obtain the time required for the audio signal transmission device 400 to communicate with the first audio playback device and the second audio playback device, respectively, and determine the time difference for sending the first audio signal and the second audio signal according to the time required for the audio signal transmission device 400 to communicate with the first audio playback device and the second audio playback device, so that the first audio signal and the second audio signal are transmitted to the first audio playback device and the second audio playback device in the same time window, respectively. In addition, the difference between the playback timing of the second audio signal and the playback timing of the first audio signal is less than a preset time difference threshold.

[0048] In the embodiment of the present application, the sound source signal is divided into a first audio signal with bass and a second audio signal with mid-high pitch by combining the respective sound quality advantages of the existing first audio playback device and the second audio playback device. The bass signal is played back by the first audio playback device and the mid-high pitch signal is played back by the second audio playback device, so that a better surround sound effect and bass performance can be obtained than that of any single audio playback device, thereby achieving an excellent surround sound effect and bass performance.

[0049] Figure 5 Schematic diagram of an audio device provided in an embodiment of the present application. The audio device is a second audio playback device 500, such as Figure 5 As shown, the second audio playback device 500 of the embodiment of the present application may include a receiving module 410 , a frequency division module 420 , a sending module 430 and a playback module 540 .

[0050] The receiving module 410 is used to receive the audio source signal. The receiving module 410 can be a module using wired communication or a module using wireless communication.

[0051] The frequency division module 420 is used to divide the frequency of the audio source signal to obtain a first audio signal and a second audio signal, wherein the frequency of the first audio signal is less than a preset frequency threshold, and the frequency of the second audio signal is greater than or equal to the preset frequency threshold.

[0052] The frequency division module 420 may be, for example, a frequency divider, which can distinguish audio source signals of different frequency bands, amplify them respectively, and then send them to the speaker units of the corresponding frequency bands for playback.

[0053] The preset frequency threshold may be, for example, 250 Hz, the first audio signal may be a bass signal, and the second audio signal may be a mid-high frequency signal.

[0054] The sending module 430 is used to send the first audio signal to the first audio playback device, and send the second audio signal to the playback module 540. The first audio playback device includes a plurality of speaker units corresponding to low frequency, medium and high frequency, and the second audio playback device 500 also includes a plurality of speaker units corresponding to low frequency, medium and high frequency. The bass quality of the first audio playback device is better than the bass quality of the second audio playback device 500, and the treble quality of the first audio playback device is lower than the treble quality of the second audio playback device 500.

[0055] The sending module 430 can send the first audio signal to the first audio playback device by wired communication or wireless communication. The wired communication may be, for example, a 3.5mm audio interface, and the wireless communication may be, for example, Bluetooth communication, WiFi point-to-point, etc.

[0056] The playing module 540 is used to play the second audio signal. The playing module 540 may include a plurality of speaker units corresponding to low frequency, medium and high frequency, wherein a plurality of medium and high frequency speaker units are respectively adapted to the frequency band of the second audio signal.

[0057] In some implementations, the first audio playback device may be an open-type headset, such as an ear-hook headset. The second audio playback device 500 may be a speaker or a soundbar.

[0058] The second audio player has good mid-high performance and is usually larger than the first audio player, so that the internal space is convenient for arranging the frequency division module 420. The sending module 430 and the playing module 540 are connected by wired communication, so the data transmission time is short and the delay is small.

[0059] In some implementations, the second audio playback device 500 may further include a processing module 550 and a stretching module 560. The processing module 550 is used to make the difference between the play timing of the second audio signal and the play timing of the first audio signal less than a preset time difference threshold, so as to ensure that the second audio signal and the first audio signal are played simultaneously. The preset time difference threshold may be, for example, 20 milliseconds or 30 milliseconds.

[0060] The widening module 560 is used to widen the sound image width of the second audio signal. The widening module 560 can use a DSP algorithm to achieve a good surround sound effect.

[0061] For example, an algorithm based on head related transfer functions (HRTF). HRTF is a set of filters that use technologies such as interaural time delay (HDITD), interaural amplitude difference (IAD) and auricular frequency vibration to produce stereo sound effects, so that when the sound is transmitted to the auricle, ear canal and eardrum in the human ear, the listener will have a sense of surround sound. The widening module 560 can process the sound source of the virtual world in real time through DSP and HRTF.

[0062] The processing module 550 may include a delay unit. In some embodiments, the delay unit may obtain the time required for communication between the first audio playback device and the second audio playback device, and determine the time difference between sending the first audio signal and the second audio signal according to the time required for communication between the first audio playback device and the second audio playback device, so that the difference between the time when the first audio signal is transmitted to the first audio playback device and the time when the playback module 540 receives the signal is less than a preset time difference threshold. In addition, the difference between the playback timing of the second audio signal and the playback timing of the first audio signal is less than the preset time difference threshold, so as to ensure that the second audio signal and the first audio signal are played simultaneously.

[0063] In some implementations, the processing module 550 may also include an equalizer and / or an effector. The equalizer is mainly used to adjust the gain of different frequency components in the audio signal to compensate for the defects of the speaker unit and the sound field, modify various sound sources, and suppress acoustic feedback. The equalizer can balance the sound by adjusting the signal gain of different frequency bands to make the audio clearer and more balanced. The effector is mainly used to add various effects to the audio signal, such as reverberation, delay, chorus, etc., to enhance the expressiveness and realism of the audio.

[0064] The embodiment of the present application combines the respective sound quality advantages of the existing first audio playback device and the second audio playback device, divides the sound source signal into a first audio signal with bass and a second audio signal with mid-high frequencies, and the first audio playback device plays back the bass signal, while the second audio playback device plays back the mid-high frequencies, thereby obtaining a better surround sound effect and bass performance than any single audio playback device, and achieving excellent surround sound effect and bass performance.

[0065] Figure 6 Schematic diagram of the audio playback system provided in the embodiment of the present application. Figure 6 As shown, the audio playback system 600 may include a first audio playback device 610 and a second audio playback device 500 .

[0066] It is understandable that the first audio playback device 610 includes a plurality of speaker units corresponding to low frequency, medium and high frequency, respectively, and the second audio playback device 500 also includes a plurality of speaker units corresponding to low frequency, medium and high frequency, respectively. The bass quality of the first audio playback device 610 is better than the bass quality of the second audio playback device 500, and the treble quality of the first audio playback device 610 is lower than the treble quality of the second audio playback device 500.

[0067] The second audio playback device 500 includes: a receiving module 410 , a frequency division module 420 , a sending module 430 and a playback module 540 .

[0068] The receiving module 410 is used to receive the audio source signal. The frequency division module 420 is used to divide the audio source signal to obtain a first audio signal and a second audio signal, wherein the frequency of the first audio signal is less than a preset frequency threshold, and the frequency of the second audio signal is greater than or equal to the preset frequency threshold.

[0069] The sending module 430 is used to send the first audio signal to the first audio playback device. The playing module 540 is used to play the second audio signal; and the first audio playback device 610 is used to play the first audio signal.

[0070] Figure 7 yes Figure 5 The application scenario diagram of the audio device shown is also Figure 6 Schematic diagram of application scenarios of the audio playback system shown. Figure 8 yes Figure 7 The following is a schematic diagram of the flow of audio signals in the application scenario shown in FIG. Figure 7 , Figure 8 , taking the first audio playback device 610 as an open-type headset and the second audio playback device 500 as a speaker as an example, the playback mechanism of the audio device in the embodiment of the present application is further explained.

[0071] like Figure 8As shown, the second audio playback device 500 is integrated with a frequency division module 420, which can be a frequency divider, which divides the received sound source signal to obtain a first audio signal and a second audio signal, wherein the frequency of the first audio signal is less than a preset frequency threshold, and the frequency of the second audio signal is greater than or equal to the preset frequency threshold, and the preset frequency threshold is, for example, 250 Hz. In other words, the first audio signal is a bass signal, and the second audio signal is a mid-high frequency signal.

[0072] The processing module 550 may include an equalizer, an effector and / or a delay unit. The equalizer can adjust the gain of different frequency components in the second audio signal to compensate for the defects of the speaker unit and the sound field, modify various sound sources, and suppress acoustic feedback. The effector can add various effects to the second audio signal, such as reverberation, delay, chorus, etc., to enhance the expressiveness and realism of the audio. The delay unit can determine the time difference of sending the first audio signal and the second audio signal according to the required communication time between the first audio playback device and the second audio playback device, so that the playback timing of the second audio signal and the playback timing of the first audio signal are less than the preset time difference threshold, ensuring that the second audio signal is played simultaneously with the first audio signal.

[0073] The second audio signal is processed by the processing module 550 and then enters the widening module 560. The widening module 560 can widen the sound image width of the second audio signal to make the sound closer to nature. The playing module 540 can be a sound box speaker, and then the sound box speaker plays the second audio signal.

[0074] The first audio playback device 610 for playing the first audio signal may be an open-type headset. The open-type headset may also include an equalizer, an effector, and / or a delay unit. After the first audio signal is processed by the equalizer, the effector, and / or the delay unit, it enters the headset speaker 612, and the headset speaker 612 plays the first audio signal with bass.

[0075] When in use, for example, when the user is cleaning or watering the flowers at home, the user wears open headphones to hear the sound of the external speakers, so that the ear receives the bass signal emitted by the headphones and the processed surround sound audio signal emitted by the speakers. Since the speakers are only responsible for the playback of mid- and high-pitched sounds, the size of the speakers in the embodiment of the present application can be made smaller than that of conventional speakers, which not only realizes the compactness of the product, but also takes into account the good sound playback experience of mid- and high-pitched sounds, that is, good bass performance and surround sound effects.

[0076] The embodiment of the present application combines the respective sound quality advantages of open headphones and speakers, divides the sound source signal into a first audio signal of bass and a second audio signal of mid-high frequencies, and the headphones reproduce the bass and the speakers reproduce the mid-high frequencies, thereby obtaining a better surround sound effect and bass performance than any single audio playback device, and can achieve excellent surround sound effects and bass performance.

[0077] Combination of the above Figure 1-Figure 8 The device embodiment of the present application is described in detail. Fig. 9 The device embodiment of the present application is described in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous device embodiment.

[0078] Fig. 9 FIG. 1 is a flow chart of a method for playing an audio signal provided in an embodiment of the present application. Fig. 9 As shown, the audio signal playing method of the embodiment of the present application may mainly include steps S910 to S930, and these steps are described in detail below.

[0079] It should be pointed out that the size of the serial numbers of the steps in the embodiments of the present application does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0080] In step S910, the received audio source signal is divided to obtain a first audio signal and a second audio signal. The frequency of the first audio signal is less than a preset frequency threshold, and the frequency of the second audio signal is greater than or equal to the preset frequency threshold.

[0081] In step S920, the first audio signal is sent to the first audio playback device, and the second audio signal is sent to the second audio playback device.

[0082] The first audio playback device includes a plurality of speaker units corresponding to low frequencies, medium and high frequencies respectively, and the second audio playback device also includes a plurality of speaker units corresponding to low frequencies, medium and high frequencies respectively. The bass quality of the first audio playback device is better than the bass quality of the second audio playback device, and the treble quality of the first audio playback device is lower than the treble quality of the second audio playback device.

[0083] In step S930, the first audio playback device is controlled to play the first audio signal, and the second audio playback device is controlled to play the second audio signal.

[0084] Optionally, the playback method of the embodiment of the present application may further include: controlling the playback timing difference between the second audio signal and the first audio signal to be smaller than a preset time difference threshold, and / or widening the sound image width of the second audio signal.

[0085] Optionally, the preset frequency threshold is 250 Hz.

[0086] Optionally, the first audio playback device is an open-ear headset, and the second audio playback device is a speaker or a soundbar.

[0087] Fig.10 Schematic diagram of component units / partial component units of an audio signal playback device provided in an embodiment of the present application. Fig.10 As shown, the audio signal playback device 1000 may include: a memory 1010 and at least one processor 1020 .

[0088] The memory 1010 is used to store codes or computer programs.

[0089] The processor 1020 is connected to the memory 1010 and is used to execute the code or computer program stored in the memory 1010 to control the audio signal playback device 1000 to execute any of the methods described above.

[0090] Exemplarily, the computer program may be divided into one or more modules / units, one or more modules / units are stored in the memory 1010 and executed by the processor 1020 to complete the present application.

[0091] Those skilled in the art will understand that Fig.10 This is only an example of the audio signal playback device 1000, and does not constitute a limitation on the audio signal playback device. It can include more or fewer components than shown in the figure, or combine certain components, or different components. The audio signal playback device 1000 provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0092] The processor 1020 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc.

[0093] An embodiment of the present application further provides a non-volatile computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.

[0094] An embodiment of the present application provides a computer program product. When the computer program product runs on an electronic device, the electronic device can implement the steps in the above-mentioned method embodiments when executing the computer program product.

[0095] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above method embodiments, which can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above method embodiments can be implemented. Among them, the computer program includes computer program code, which can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device that can carry the computer program code to the camera / electronic device, recording medium, computer memory, read-only memory (ROM), random access memory (RAM), read-only compact disc (CD-ROM), magnetic tape, floppy disk and optical data storage device. The computer-readable storage medium mentioned in the present application can be a non-volatile storage medium, in other words, it can be a non-transient storage medium.

[0096] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0097] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0098] In the embodiments provided in the present application, it should be understood that the disclosed devices / equipment and methods can be implemented in other ways. For example, the device / equipment embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0099] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0100] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0101] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0102] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An audio signal transmission device, characterized in that: include: A receiving module, used for receiving an audio source signal; A frequency division module, used to divide the frequency of the audio source signal to obtain a first audio signal and a second audio signal, wherein the frequency of the first audio signal is less than a preset frequency threshold, and the frequency of the second audio signal is greater than or equal to the preset frequency threshold; A sending module is used to send the first audio signal to a first audio playback device, and send the second audio signal to a second audio playback device, wherein the bass quality of the first audio playback device is better than the bass quality of the second audio playback device, and the treble quality of the first audio playback device is lower than the treble quality of the second audio playback device.

2. The audio signal transmission device according to claim 1, characterized in that: The audio signal transmission device is integrated in the second audio playback device, and the sending module sends the first audio signal to the first audio playback device by wired communication or wireless communication.

3. The audio signal transmission device according to claim 1, characterized in that: The preset frequency threshold is 250 Hz.

4. The audio signal transmission device according to any one of claims 1 to 3, characterized in that: The first audio playback device is an open-ear headset, and the second audio playback device is a speaker or a soundbar.

5. An audio device, characterized in that: The audio device is a second audio playback device, and the second audio playback device includes: A receiving module, used for receiving an audio source signal; A frequency division module, used to divide the frequency of the audio source signal to obtain a first audio signal and a second audio signal, wherein the frequency of the first audio signal is less than a preset frequency threshold, and the frequency of the second audio signal is greater than or equal to the preset frequency threshold; A sending module, used for sending the first audio signal to a first audio playing device for playing; A playing module, used for playing the second audio signal; The bass quality of the first audio playback device is better than the bass quality of the second audio playback device, and the treble quality of the first audio playback device is lower than the treble quality of the second audio playback device.

6. The audio device according to claim 5, characterized in that The second audio playback device also includes: A processing module, configured to make the difference between the playing timing of the second audio signal and the playing timing of the first audio signal smaller than a preset time difference threshold; A widening module is used to widen the sound image width of the second audio signal.

7. The audio device according to claim 5, characterized in that The first audio playback device is an open-ear headset, and the second audio playback device is a speaker or a soundbar.

8. A method for playing an audio signal, characterized in that: include: Performing frequency division on the received audio source signal to obtain a first audio signal and a second audio signal, wherein the frequency of the first audio signal is less than a preset frequency threshold, and the frequency of the second audio signal is greater than or equal to the preset frequency threshold; Sending the first audio signal to a first audio playback device, and sending the second audio signal to a second audio playback device; Controlling the first audio playback device to play the first audio signal, and the second audio playback device to play the second audio signal; The bass quality of the first audio playback device is better than the bass quality of the second audio playback device, and the treble quality of the first audio playback device is lower than the treble quality of the second audio playback device.

9. A device for playing an audio signal, characterized in that: include: A memory for storing codes; A processor is connected to the memory and is used to execute the code stored in the memory so that the audio signal playback device executes the playback method as claimed in claim 8.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed, the computer program is used to implement the playback method as claimed in claim 8.

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