Audio playing device and method, storage medium and electronic equipment

Abstract

The invention provides an audio playing device and method, a storage medium and electronic equipment. The audio playing device comprises a processing module; the power amplifier module is coupled with the processing module and is used for receiving the audio output signal output by the processing module; the sampling module is coupled with the processing module and is used for sampling the audio output signal and outputting a feedback signal to the processing module according to the audio output signal; the power supply module is coupled with the processing module and the power amplification module and is used for supplying power to the power amplification module; when the processing module detects that no data exists in the feedback signal, the processing module sends a control signal to the power supply module, and the power supply module reduces the power supply voltage provided for the power amplifier module according to the control signal. According to the mode, the audio output signal is collected by the sampling module and fed back to the processing module, and the power supply output of the power supply module to the power amplifier module is adjusted by the processing module, so that the power consumption of the power amplifier is adjusted in real time, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The present application mainly relates to the field of audio technology, and in particular to audio playback devices, methods, storage media and electronic devices. Background Art

[0002] With the increasing popularity of consumer cameras and the increasing variety of battery-powered devices, people are increasingly demanding the maximum operating time of their devices. Therefore, overall device power consumption needs to be considered during design, especially to minimize unnecessary losses.

[0003] For integrated audio and video surveillance equipment, the current sleep and wakeup scheme is still primarily based on whether a person is detected. Even so, when the camera is operating normally, the audio amplifier / speaker remains idle most of the time. Therefore, further reducing device power consumption in this situation is an urgent issue. Summary of the Invention

[0004] The main purpose of this application is to provide an audio playback device, method, storage medium and electronic device to solve the power consumption problem of the audio playback device in different usage scenarios.

[0005] To solve the above problems, the present application provides an audio playback device, which includes: a processing module; a power amplifier module, which is coupled to the processing module and is used to receive the audio output signal output by the processing module; a sampling module, which is coupled to the processing module and is used to sample the audio output signal and output a feedback signal to the processing module based on the audio output signal; a power supply module, which is coupled to the processing module and the power amplifier module and is used to supply power to the power amplifier module; wherein, when the processing module detects that there is no data in the feedback signal, it sends a control signal to the power supply module, and the power supply module lowers the power supply voltage provided to the power amplifier module according to the control signal.

[0006] In one embodiment, the power supply module includes: a power supply unit, wherein the first end of the power supply unit is configured to be coupled to the power supply voltage end, the output end of the power supply unit is coupled to the power amplifier module, and the second end of the power supply unit is grounded; a voltage divider unit, coupled between the first end and the output end of the power supply unit; a power consumption control unit, wherein the control end of the power consumption control unit is coupled to the processing module, and the first end and the second end of the power consumption control unit are coupled to the two ends of the voltage divider unit; wherein, when the processing module detects that there is no data in the feedback signal, it sends a control signal to the power consumption control unit to cut off the power consumption control unit, connect the voltage divider unit to the power supply unit to form a power supply loop, and lower the power supply voltage provided by the output end of the power supply unit to the power amplifier module.

[0007] In one embodiment, the power supply unit includes: a first resistor, a first end of the first resistor is configured to be coupled to a power supply voltage terminal, and a second end of the first resistor is coupled to a voltage dividing unit; a second resistor, a first end of the second resistor is coupled to an output end of the power supply unit and a power amplifier module, and a second end of the second resistor is grounded.

[0008] In one embodiment, the voltage dividing unit includes: a third resistor, a first end of the third resistor is coupled to the second end of the first resistor, and a second end of the third resistor is coupled to an output end of the power supply unit.

[0009] In one embodiment, the power consumption control unit includes: a transistor, a control end of the transistor is coupled to a processing module, and a first end and a second end of the transistor are coupled to two ends of the voltage dividing unit; a capacitor, a first end of the capacitor is coupled to the first end of the transistor, and a second end of the capacitor is coupled to the second end of the transistor; wherein, when the processing module detects that there is no data in the feedback signal, it sends a control signal to the transistor to turn off the transistor, connects the voltage dividing unit to the power supply unit to form a power supply loop, and reduces the power supply voltage provided by the output end of the power supply unit to the power amplifier module.

[0010] To solve the above problems, the present application also provides an audio playback method, which is applied to an audio playback device. The audio playback device includes a processing module, a sampling module, a power amplifier module, and a power supply module; the audio playback method includes: using the sampling module to obtain an audio output signal output by the processing module; using the sampling module to process the audio output signal and output a feedback signal to the processing module; using the processing module to adjust the output voltage of the power supply module according to the feedback signal to adjust the power consumption of the power amplifier module.

[0011] In one embodiment, using the sampling module to obtain an audio output signal output by the processing module includes: using the sampling module to sample and obtain an audio output signal that has been subjected to digital-to-analog conversion processing output by the processing module; and directly sampling using software to obtain an audio output signal output by the processing module.

[0012] In one embodiment, using the sampling module to process the audio output signal and output a feedback signal to the processing module includes: obtaining a processed signal after filtering and amplifying the audio output signal; obtaining voice information in the processed signal, and outputting a feedback signal to the processing module according to the voice information.

[0013] To solve the above problems, the present application also provides a computer-readable storage medium storing computer-executable instructions, which are used to implement the audio playback method described in any one of the above embodiments when executed by a processor.

[0014] To solve the above problems, the present application further provides an electronic device, which includes: an audio playback device, where the audio playback device is the audio playback device described in any one of the above embodiments; a control device, where the control device is coupled to the audio playback device, and the control device is used to implement the audio playback method described in any one of the above embodiments; and a power supply, where the power supply is coupled to the audio playback device and the control device.

[0015] For the audio playback device, method, storage medium, and electronic device provided by the present application, while the audio playback device outputs an audio output signal to the power amplifier module by the processing module, the sampling module samples the audio output signal, and outputs a feedback signal to the processing module according to the sampled audio output signal, so that the processing module can adjust the power supply output of the power supply module to the power amplifier module according to the feedback signal, and further, when it is detected that there is no data in the audio output signal, reduce the power supply output to the power amplifier module, so as to reduce the power consumption of the device and increase the service life of the device without adding device circuits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. Among them:

[0017] Figure 1 is a schematic structural diagram of an embodiment of the audio playback device provided by the present application;

[0018] Figure 2 is a schematic structural diagram of the first embodiment of the power supply module provided by the present application;

[0019] Figure 3 is a schematic structural diagram of the second embodiment of the power supply module provided by the present application;

[0020] Figure 4 is a schematic step flow diagram of an embodiment of the audio playback method provided by the present application;

[0021] Figure 5 is Figure 4 a schematic sub-step flow diagram of step S20 in

[0022] Figure 6 is a schematic structural diagram of an embodiment of the computer-readable storage medium provided by the present application;

[0023] Figure 7 is a schematic structural diagram of an embodiment of the electronic device provided by the present application.

[0024] Reference Numerals in the Drawings:

[0025] 100, audio playback device; 10, processing module; 20, power amplifier module; 30, sampling module; 40, power supply module; 41, power supply unit; 42, voltage dividing unit; 43, power consumption control unit; 200, computer-readable storage medium; 210, computer-executable instructions; 300, electronic device; 310, control device. Detailed Embodiments

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limiting the present application. Additionally, it should be noted that for the sake of description, only parts related to the present application are shown in the drawings, rather than all the structures. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0027] The terms "first", "second", etc. in the present application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0028] Referring to "embodiments" herein means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0029] During the long-term use of a device, there will be a period when the device does not need to operate but needs to be in a standby state. For example, during the use of an audio device, how to automatically adjust the supply voltage of the audio power amplifier when the device does not need to use the speaker to play, and achieve the purpose of low power consumption with minimal addition of peripheral circuits, so as to maximize the overall usage time of battery-powered products. At the same time, it will not have an adverse impact on the overall audio effect, providing a good user experience, and having good compatibility with different types of power amplifiers. Therefore, the present application provides an audio playback device, method, storage medium, and electronic device to solve the above problems.

[0030] Refer to Figure 1 as shown Figure 1 which is a schematic structural diagram of an embodiment of an audio playback device provided by the present application; wherein, the audio playback device 100 includes: a processing module 10, a power amplifier module 20, a sampling module 30, and a power supply module 40; specifically, the power amplifier module 20 is coupled to the processing module 10 and is configured to receive an audio output signal output by the processing module 10; the sampling module 30 is coupled to the processing module 10 and is configured to sample the audio output signal and output a feedback signal to the processing module 10 according to the audio output signal. The power supply module 40 is coupled to the processing module 10 and the power amplifier module 20 and is configured to supply power to the power amplifier module 20; wherein, when the processing module 10 detects that there is no data in the feedback signal, it sends a control signal to the power supply module 40, and the power supply module 40 reduces the power supply voltage provided to the power amplifier module 20 according to the control signal.

[0031] It can be understood that in a general audio intercom system, in the normal working state, the processing module 10 outputs an audio output signal to the power amplifier module 20, and the power amplifier module 20 drives the speaker to work. Among them, the sampling of the audio output signal has real-time data transmission. Therefore, by using the sampled audio output signal as a detection signal, the working state and the like are judged, and then the circuit is controlled and adjusted according to its working state.

[0032] Among them, during the process of sampling the audio output signal output by the processing module 10, in some embodiments, hardware sampling can be performed through the sampling module 30 for hard resampling, and / or software control can be directly used to perform soft resampling on the audio output signal output by the processing module 10. Hard resampling refers to directly collecting and processing audio signals through dedicated hardware devices (such as ADC chips, audio interface cards, etc.). Soft resampling refers to collecting and processing audio signals through software algorithms, usually relying on audio interfaces and processors in a computer or an embedded system. Hard resampling and soft resampling have their own advantages and disadvantages in the audio signal collection process. Hard resampling has the advantages of high precision, low latency, and high stability, but it has a high cost and poor flexibility; soft resampling has the advantages of high flexibility, low cost, and easy upgrade, but it has low precision, high latency, and poor stability. Therefore, in practical applications, the appropriate collection method can be selected according to specific requirements, or the advantages of hardware and software collection can be combined to achieve the best audio signal collection effect.

[0033] For the echo cancellation algorithm, the adverse effects of audio acquisition on the echo cancellation algorithm mainly come from factors such as signal distortion, environmental reverberation, hardware delay, double-talk processing, and interference in the audio processing link. The combined effect of these factors may lead to a decline in the performance of the echo cancellation algorithm and affect the quality of voice communication. Therefore, on the basis of adopting the above-described embodiment solution, adjusting through the combination of hardware back-sampling and software back-sampling will not have a great adverse impact on the echo cancellation algorithm.

[0034] In one embodiment, a signal processing part is integrated in the sampling module 30. After a series of processing such as band-pass filtering and amplification gain on the sampled audio output signal therein, it is output to the processing module 10. After band-pass filtering the audio output signal, the signal within the normal human voice frequency range, such as 20 - 20k, is retained to avoid the influence of other interference signals on the judgment accuracy. At the same time, the digital gain needs to be adjusted. For example, it is necessary to satisfy that the size of the back-sampled signal is between -6dBFS and -9dBFS to avoid the back-sampled signal being clipped or too small to affect the judgment.

[0035] In the above manner, when the processing module 10 outputs an audio output signal, the sampling module 30 samples the audio output signal, and outputs a feedback signal to the processing module 10 according to the sampled audio output signal, so that the processing module 10 can adjust the power supply output of the power supply module 40 to the power amplifier module 20 according to the feedback signal. Furthermore, when no data in the audio output signal is detected, the power supply output to the power amplifier module 20 is reduced, so as to reduce the power consumption of the device and increase the usage duration of the device without adding device circuits.

[0036] In one embodiment, as Figure 2 shown, Figure 2 is a schematic structural diagram of the first embodiment of the power supply module provided by the present application; wherein, the power supply module 40 includes: a power supply unit 41, a voltage dividing unit 42, and a power consumption control unit 43; the first end of the power supply unit 41 is configured to be coupled to the power supply voltage terminal, the output end of the power supply unit 41 is coupled to the power amplifier module 20, and the second end of the power supply unit 41 is grounded; the voltage dividing unit 42 is coupled between the first end and the output end of the power supply unit 41; the control end of the power consumption control unit 43 is coupled to the processing module 10, and the first end and the second end of the power consumption control unit 43 are coupled to both ends of the voltage dividing unit 42; wherein, when the processing module 10 detects that there is no data in the feedback signal, it sends a control signal to the power consumption control unit 43 to make the power consumption control unit 43 cut off, connect the voltage dividing unit 42 into the power supply unit 41 to form a power supply loop, and reduce the power supply voltage provided by the output end of the power supply unit 41 to the power amplifier module 20.

[0037] In the above embodiments, the power consumption control unit 43 receives the control signal output by the processing module 10 to perform real-time switching control of the switch, thereby connecting or disconnecting the voltage dividing unit 42 from the power supply unit 41; it can be understood that by using the method of connecting the voltage dividing unit 42 to the power supply unit 41, the output voltage of the power supply module 40 is adjusted, that is, the input power supply voltage of the power amplifier module 20 is coupled, and then the power consumption state is adjusted by adjusting the power supply voltage of the power amplifier module 20 to cope with different usage scenarios, reduce the power consumption of the power amplifier, and increase the usage time of the device.

[0038] In one embodiment, as Figure 3 described, Figure 3 FIG. is a schematic structural diagram of the second embodiment of the power supply module provided by the present application; wherein, the power supply unit 41 includes: a first resistor R1 and a second resistor R2; wherein, the first end of the first resistor R1 is configured to be coupled to the power supply voltage terminal, and the second end of the first resistor R1 is coupled to the voltage dividing unit 42; the first end of the second resistor R2 is coupled to the output terminal of the power supply unit 41 and the power amplifier module 20, and the second end of the second resistor R2 is grounded.

[0039] It can be understood that, as Figure 3 shown, in the process of adjusting the output voltage of the power supply module 40, the output voltage amplitude of the power supply module 40 can be adjusted by combining the second resistor R2 with the voltage dividing unit 42, and by adjusting the different resistance values of the second resistor R2 and the voltage dividing unit 42, so as to cope with different specifications and usage scenarios.

[0040] In one embodiment, as Figure 3 shown, the voltage dividing unit 42 includes: a third resistor R3, the first end of the third resistor R3 is coupled to the second end of the first resistor R1, and the second end of the third resistor R3 is coupled to the output terminal of the power supply unit 41.

[0041] In one embodiment, as Figure 3 shown, the power consumption control unit 43 includes: a transistor Q1 and a capacitor C1; the control terminal of the transistor Q1 is coupled to the processing module 10, and the first end and the second end of the transistor Q1 are coupled to both ends of the voltage dividing unit 42; the first end of the capacitor C1 is coupled to the first end of the transistor Q1, and the second end of the capacitor C1 is coupled to the second end of the transistor Q1; wherein, when the processing module 10 detects that there is no data in the feedback signal, it sends a control signal to the transistor Q1 to make the transistor Q1 cut off, connect the voltage dividing unit 42 to the power supply unit 41 to form a power supply loop, and lower the power supply voltage provided by the output terminal of the power supply unit 41 to the power amplifier module 20. Among them, in some embodiments, the transistor Q1 can adopt an N-type MOS transistor or a P-type MOS transistor, and other ways of the switching transistor Q1 can be used to achieve switching control.

[0042] Combining the above embodiment solutions and referring toFigure 3 As shown in the figure, the voltage dividing unit 42 is connected to the power supply unit 41 by the power consumption control unit 43 to adjust the output voltage of the power supply module 40. Specifically, in the embodiment solution, the output voltage amplitude can be further adjusted by adjusting different resistance values in the voltage dividing unit 42 and the power supply unit 41. The voltage division can be adjusted according to the actual requirements of the product. For example, the normal operating voltages of different specifications of power amplifiers are different. And a resistor with a higher resistance value should be selected to ensure lower losses. Specifically, the specific formula for voltage division is as follows:

[0043]

[0044] Among them, V out is the output voltage, and V cc is the input voltage of the power supply voltage terminal.

[0045] By the above method, the power supply voltage of the power amplifier module 20 is effectively adjusted and still in the enabled state, so as to avoid the annoying POP sound generated by frequently enabling the power amplifier through control. Moreover, the unnecessary electromagnetic radiation of the power amplifier module 20 is reduced, and the EMC (electromagnetic compatibility) risk brought by the audio power amplifier is reduced.

[0046] To solve the above problems, the present application also provides an audio playback method, as Figure 4 shown, Figure 4 is a schematic flowchart of the steps of an embodiment of the audio playback method provided by the present application; this audio playback method is applied to the audio playback device 100, and the audio playback device 100 includes a processing module 10, a sampling module 30, a power amplifier module 20, and a power supply module 40; this audio playback method includes the following steps:

[0047] Step S10: Use the sampling module 30 to obtain the audio output signal output by the processing module 10.

[0048] In one embodiment, using the sampling module 30 to obtain the audio output signal output by the processing module 10 includes: using the sampling module 30 to sample and obtain the audio output signal output by the processing module 10 after digital-to-analog conversion processing; and directly sampling using software to obtain the audio output signal output by the processing module 10.

[0049] Step S20: Use the sampling module 30 to process the audio output signal and output a feedback signal to the processing module 10.

[0050] In one embodiment, as Figure 5 shown, Figure 5 is Figure 4 a schematic flowchart of the sub-steps of step S20; among them, step S20 using the sampling module 30 to process the audio output signal and output a feedback signal to the processing module 10 includes the following sub-steps:

[0051] Step S21: Obtain the processed signal after filtering and amplifying the audio output signal.

[0052] Among them, the processed signal refers to the audio output signal obtained through hardware sampling and / or software sampling in the above embodiments, and through a series of signal processing methods, such as signal processing methods like filtering, gain amplification, feature extraction, etc., to obtain the processed signal after processing.

[0053] Step S22: Obtain the voice information in the processed signal, and output a feedback signal to the processing module 10 according to the voice information.

[0054] Among them, in one embodiment, the recognition of the voice information is carried out in the following manner:

[0055] By detecting the sampled audio output signal within a period of time, segmenting this continuous sampled signal into intervals, and judging the audio situation at each time, and identifying the voice components and non-voice components through algorithm processing. For example, the VAD (Voice activity detection) algorithm is used to detect whether there is human voice in the audio signal. It analyzes the characteristics of the audio signal, such as energy, spectrum or cepstral distance, to distinguish the voice and non-voice components in the signal. The core goal of VAD is to accurately identify the voice segments and non-voice segments (such as silence, background noise, etc.), thereby improving the efficiency and performance of the voice processing system.

[0056] When the voice components therein meet a certain time threshold, it can be determined that the current is in a normal intercom state. For the non-voice signal part, the FFT (Fast Fourier Transform) spectrum is used to assist in analyzing and judging whether it is steady-state noise. Among them, FFT (Fast Fourier Transform) is an algorithm for efficiently calculating the discrete Fourier transform (DFT) and its inverse transform. It helps us analyze and process various signals and data from the frequency domain perspective by quickly calculating the discrete Fourier transform.

[0057] After processing according to the above method, judge the result and output the corresponding control signal. For example, in the case where no voice information is recognized within a period of time, output a control signal to control the power supply module 40 to reduce the output voltage to the power amplifier module 20 to reduce its power consumption.

[0058] On the basis of the above situation, in other embodiments, the sound intensity is also detected for signal synchronization. When the instantaneous audio energy of the output increases, quickly judge and output a control signal to make the power amplifier work with low power consumption, so as to avoid the output of audio with instantaneous high sound intensity by the device speaker through real-time sound intensity detection and avoid hearing damage. Add a music playback detection algorithm to meet the usage requirements in different scenarios.

[0059] Step S30: The processing module 10 adjusts the output voltage of the power supply module 40 according to the feedback signal to adjust the power consumption of the power amplifier module 20.

[0060] Among them, the power supply adjustment of the power supply module 40 by the processing module 10 is used to achieve fast switching. For example, when a voice signal is detected, the power supply module 40 normally outputs power to ensure the normal operation of the power amplifier module 20; when no voice signal is detected, the power supply voltage output of the power supply module 40 is reduced to reduce the power consumption of the audio power amplifier module 20.

[0061] In the above manner, it is realized that the power amplifier can be normally used under normal use such as in an intercom scenario and a music playing scenario, but when the ambient noise at the opposite end is too high, the voltage can be reduced to make the power amplifier temporarily in an undervoltage state, effectively reducing the power consumption of the power amplifier. At the same time, when the audio energy instantaneously increases during playback, the working voltage of the power amplifier can be quickly reduced, and the speaker output can be reduced to avoid the instantaneous high-intensity sound from affecting the user experience and damaging the user's hearing.

[0062] The audio playing device and method in the above embodiments are generally applied to some devices that require audio playing, such as mobile electronic devices such as cameras and mobile phones, as well as fixed devices such as monitoring devices. These devices usually include a power supply device with independent power supply to maintain the long-term use of the device. Therefore, using the solution of this application is very important for extending the use time of the device without adding additional complex circuits.

[0063] To solve the above problems, the present application also provides a computer-readable storage medium 200, as Figure 6 shown, Figure 6 is a schematic structural diagram of an embodiment of the computer-readable storage medium provided by the present application; the computer-readable storage medium 200 stores computer-executable instructions 210, and when the computer-executable instructions 210 are executed by a processor, they are used to implement the audio playing method described in any one of the above embodiments.

[0064] To solve the above problems, the present application also provides an electronic device 300, as Figure 7 shown, Figure 7 is a schematic structural diagram of an embodiment of the electronic device provided by the present application; the electronic device 300 includes: an audio playing device 100, and the audio playing device 100 is the audio playing device 100 described in any one of the above embodiments; a control device 310, the control device 310 is coupled to the audio playing device 100, and the control device 310 is used to implement the audio playing method described in any one of the above embodiments; a power supply 320 is coupled to the audio playing device 100 and the control device 310 to supply power to the coupled audio playing device 100 and control device 310.

[0065] The present application provides an audio playback device 100, a method, a storage medium, and an electronic device 300. The audio playback device 100 includes: a processing module 10; a power amplifier module 20, the power amplifier module 20 being coupled to the processing module 10 and configured to receive an audio output signal output by the processing module 10; a sampling module 30, the sampling module 30 being coupled to the processing module 10 and configured to sample the audio output signal and output a feedback signal to the processing module 10 according to the audio output signal; a power supply module 40, the power supply module 40 being coupled to the processing module 10 and the power amplifier module 20 and configured to supply power to the power amplifier module 20; wherein, when the processing module 10 detects that there is no data in the feedback signal, the processing module 10 sends a control signal to the power supply module 40, and the power supply module 40 reduces the power supply voltage provided to the power amplifier module 20 according to the control signal.

[0066] In the above manner, while the processing module 10 outputs an audio output signal to the power amplifier module 20, the sampling module 30 samples the audio output signal and outputs a feedback signal to the processing module 10 according to the sampled audio output signal, so that the processing module 10 can adjust the power supply output of the power supply module 40 to the power amplifier module 20 according to the feedback signal, thereby realizing reducing the power supply output to the power amplifier module 20 when no data in the audio output signal is detected, so as to reduce the power consumption of the device and increase the usage duration of the device without adding device circuits.

[0067] The embodiments of the present application have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. An audio playback device, characterized in that, The audio playback device includes: A processing module; A power amplifier module, which is coupled to the processing module and is used to receive the audio output signal output by the processing module; A sampling module, which is coupled to the processing module and is used to sample the audio output signal and output a feedback signal to the processing module according to the audio output signal; A power supply module, which is coupled to the processing module and the power amplifier module and is used to supply power to the power amplifier module; Wherein, when the processing module detects that there is no data in the feedback signal, it sends a control signal to the power supply module, and the power supply module reduces the power supply voltage provided to the power amplifier module according to the control signal.

2. The audio playback device according to claim 1, wherein The power supply module includes: A power supply unit, the first end of which is configured to be coupled to the power supply voltage terminal, the output end of which is coupled to the power amplifier module, and the second end of which is grounded; A voltage dividing unit, which is coupled between the first end and the output end of the power supply unit; A power consumption control unit, the control end of which is coupled to the processing module, and the first end and the second end of which are coupled to both ends of the voltage dividing unit; Wherein, when the processing module detects that there is no data in the feedback signal, it sends the control signal to the power consumption control unit to make the power consumption control unit cut off, connect the voltage dividing unit to the power supply unit to form a power supply loop, and reduce the power supply voltage provided by the output end of the power supply unit to the power amplifier module.

3. The audio playback device according to claim 2, characterized in that The power supply unit includes: A first resistor, the first end of which is configured to be coupled to the power supply voltage terminal, and the second end of which is coupled to the voltage dividing unit; A second resistor, the first end of which is coupled to the output end of the power supply unit and the power amplifier module, and the second end of which is grounded.

4. The audio playback device according to claim 3, wherein, The voltage dividing unit includes: A third resistor, the first end of which is coupled to the second end of the first resistor, and the second end of which is coupled to the output end of the power supply unit.

5. The audio playback device according to claim 2, characterized in that, The power consumption control unit includes: A transistor, the control end of which is coupled to the processing module, and the first end and the second end of which are coupled to both ends of the voltage dividing unit; A capacitor, the first end of which is coupled to the first end of the transistor, and the second end of which is coupled to the second end of the transistor; Wherein, when the processing module detects that there is no data in the feedback signal, it sends the control signal to the transistor to make the transistor cut off, connect the voltage dividing unit to the power supply unit to form a power supply loop, and reduce the power supply voltage provided by the output end of the power supply unit to the power amplifier module.

6. An audio playback method, characterized in that, Applied to an audio playback device, the audio playback device includes a processing module, a sampling module, a power amplifier module and a power supply module; the audio playback method includes: Using the sampling module to obtain the audio output signal output by the processing module; Using the sampling module to process the audio output signal and output a feedback signal to the processing module; Using the processing module to adjust the output voltage of the power supply module according to the feedback signal to adjust the power consumption of the power amplifier module.

7. The audio playing method according to claim 6, wherein Obtain the audio output signal output by the processing module by using a sampling module, including: Sampling and obtaining the audio output signal output by the processing module and subjected to digital-to-analog conversion processing by using the sampling module; and directly sampling and obtaining the audio output signal output by the processing module by using software.

8. The audio playing method according to claim 6, wherein The processing of the audio output signal by using the sampling module and outputting a feedback signal to the processing module includes: Obtaining a processed signal obtained by filtering and amplifying the audio output signal; Obtaining the voice information in the processed signal, and outputting a feedback signal to the processing module according to the voice information.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the audio playback method according to any one of claims 6-8.

10. An electronic device, characterized in that, The electronic device includes: An audio playback device, where the audio playback device is the audio playback device according to any one of claims 1-5; A control device, where the control device is coupled to the audio playback device, and the control device is used to implement the audio playback method according to any one of claims 6-8; A power supply, where the power supply is coupled to the audio playback device and the control device.

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