CN106878866A - Audio signal processing method, device and terminal - Google Patents

Abstract

The present invention proposes a kind of acoustic signal processing method, device and terminal, wherein, method includes：The audio signal that collection sound play device is played, according to the sound effect of audio signal analysis sound play device, the processing parameter of the audio-frequency signal processing module in terminal is adjusted according to sound effect, is modified with to the sound effect.In the present embodiment, the sound effect that can be played back according to loudspeaker or receiver, then the processing parameter inside adjust automatically audio processing modules, can cause that each source of sound has corresponding optimal processing parameter, can thus cause that loudspeaker or receiver play back the effect of sound all in optimum state when any source of sound is played.

Description

Audio signal processing method, device and terminal

technical field

The present invention relates to the technical field of terminals, in particular to an audio signal processing method, device and terminal.

Background technique

At present, the audio playback module of the mobile terminal is usually debugged based on a standard signal source. When an ideal sound effect is debugged, the processing parameters of the audio playback module corresponding to the ideal sound effect are used as fixed processing parameters of the mobile terminal.

Every time the mobile terminal plays audio, the mobile terminal adjusts the audio from the sound source based on the fixed processing parameters, so that the played audio has a better effect. However, in practical applications, the audio sources played by the mobile terminal are usually very random, and some audio sources are very different from the standard signal sources. The mobile terminal still processes the audio from the audio source according to the above fixed processing parameters, resulting in The final sound effect will be worse.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

For this reason, the first purpose of the present invention is to propose an audio signal processing method to dynamically adjust the processing parameters of the audio signal processing module of the mobile terminal, and to solve the problem in the prior art based on fixed processing when the sound source difference is large. There is a problem that the sound effect after playback is poor when the parameter is processing the audio.

A second object of the present invention is to propose an audio signal processing device.

The third object of the present invention is to provide a terminal.

In order to achieve the above purpose, the embodiment of the first aspect of the present invention proposes an audio signal processing method, including:

Collecting the audio signal played by the sound playback device;

analyzing the sound effect of the sound playing device according to the audio signal;

Adjust the processing parameters of the audio signal processing module in the terminal according to the sound effect, so as to modify the sound effect.

The audio signal processing method of the embodiment of the present invention can automatically adjust the processing parameters inside the audio processing module according to the sound effect played by the speaker or receiver, so that each sound source has the optimal processing parameters corresponding to it, so that it can So that when playing any audio source, the effect of the sound played by the speaker or the receiver is in the best state.

In addition, the audio signal processing method of the embodiment of the present invention also has the following additional technical features:

In an embodiment of the present invention, the analyzing the sound effect of the sound playback device according to the audio signal includes:

performing a fast Fourier transform on the audio signal to obtain a spectrogram of the audio signal;

extracting high frequency components and low frequency components of the audio signal from the spectrogram;

If the high-frequency component is out of balance with the low-frequency component, it is determined that the sound effect is a high-low frequency imbalance of sound.

In an embodiment of the present invention, the adjusting the processing parameters of the audio signal processing module in the terminal according to the sound effect to modify the sound effect includes:

Adjusting the filter parameters of the digital filter in the audio signal processing module, so that the high frequency component and the low frequency component carried in the audio signal played subsequently are in a balanced state.

In an embodiment of the present invention, the analyzing the sound effect of the sound playback device according to the audio signal includes:

obtaining the amplitude of the audio signal;

comparing the amplitude with a preset threshold range;

If the amplitude is not within the threshold range, it is determined that the sound effect is an abnormal sound volume.

In an embodiment of the present invention, the dynamically adjusting the processing parameters of the audio signal processing module in the terminal according to the sound effect includes:

Adjusting the gain of the amplifier in the audio signal processing module, so that the amplitude of the audio signal played subsequently is within the threshold range.

In an embodiment of the present invention, after adjusting the processing parameters of the audio signal processing module in the terminal according to the sound effect to modify the sound effect, it includes:

Processing the audio signal sent by the sound source based on the adjusted audio signal processing module;

and playing the processed audio signal through the sound playing device.

In one embodiment of the present invention, the audio signal played by the collection sound playback device includes:

The audio signal played by the sound playback device is collected through the microphone on the terminal.

In order to achieve the above purpose, the embodiment of the second aspect of the present invention proposes an audio signal processing device, including:

The collection module is used to collect the audio signal played by the sound playback device;

An analysis module, configured to analyze the sound effect of the sound playback device according to the audio signal;

The parameter adjustment module is configured to adjust the processing parameters of the audio signal processing module in the terminal according to the sound effect, so as to modify the sound effect.

The audio signal processing device of the embodiment of the present invention can automatically adjust the processing parameters inside the audio processing module according to the sound effect played by the speaker or the receiver, so that each sound source has the optimal processing parameters corresponding to it, so that it can So that when playing any audio source, the effect of the sound played by the speaker or the receiver is in the best state.

In addition, the audio signal processing device in the embodiment of the present invention also has the following additional technical features:

In one embodiment of the present invention, the analysis module includes:

A transform unit, configured to perform fast Fourier transform on the audio signal to obtain a spectrogram of the audio signal;

an extraction unit, configured to extract high-frequency components and low-frequency components of the audio signal from the spectrogram;

The first determining unit is configured to determine that the sound effect is a high-low frequency imbalance of sound if the high-frequency component is out of balance with the low-frequency component.

In an embodiment of the present invention, the parameter adjustment module is specifically configured to adjust the filter parameters of the digital filter in the audio signal processing module, so that the high The frequency components and the low frequency components are in a balanced state.

In one embodiment of the present invention, the analysis module includes:

an amplitude acquisition unit, configured to acquire the amplitude of the audio signal;

a comparison unit, configured to compare the amplitude with a preset threshold range;

The second determining unit is configured to determine that the sound effect is an abnormal sound volume if the amplitude is not within the threshold range.

In an embodiment of the present invention, the parameter adjustment module is specifically configured to adjust the gain of the amplifier in the audio signal processing module, so that the amplitude of the audio signal played subsequently is within the threshold range.

In one embodiment of the invention, the device also includes:

A processing module, configured to process the audio signal sent by the sound source based on the adjusted audio signal processing module;

The playing module is used to play the processed audio signal through the sound playing device.

In an embodiment of the present invention, the collection module is specifically configured to collect the audio signal played by the sound playback device through the microphone on the terminal.

To achieve the above purpose, the embodiment of the third aspect of the present invention proposes another terminal, including:

A housing and a processor, a memory, a microphone, and a sound playback device located in the housing, wherein the processor executes the program corresponding to the executable program code by reading the executable program code stored in the memory program to perform the following steps:

Collecting the audio signal played by the sound playback device;

analyzing the sound effect of the sound playing device according to the audio signal;

Adjust the processing parameters of the audio signal processing module in the terminal according to the sound effect, so as to modify the sound effect.

The terminal of the embodiment of the present invention can automatically adjust the processing parameters inside the audio processing module according to the sound effect played by the speaker or the receiver, so that each sound source has the optimal processing parameters corresponding to it, so that it can be played during playback. When using any sound source, the effect of the sound played by the speaker or the receiver is in the best state.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic flowchart of an audio signal processing method provided by an embodiment of the present invention;

FIG. 2 is a schematic flowchart of another audio signal processing method provided by an embodiment of the present invention;

FIG. 3 is a schematic flowchart of another audio signal processing method provided by an embodiment of the present invention;

Fig. 4 is an application schematic diagram of an audio signal processing method provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an audio signal processing device provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another audio signal processing device provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another audio signal processing device provided by an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of another audio signal processing device provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a terminal provided by an embodiment of the present invention.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

The audio signal processing method, device and terminal according to the embodiments of the present invention are described below with reference to the accompanying drawings.

FIG. 1 is a schematic flowchart of an audio signal processing method provided by an embodiment of the present invention. The audio signal processing method of the embodiment of the present invention can be applied to various devices or terminal devices, such as tablet computers, notebook computers, personal computers, smart phones, and the like. As shown in Figure 1, the audio signal processing method comprises the following steps:

S101. Collect an audio signal played by a sound playing device.

Users can make voice calls, video chats, or play audio and video files based on the terminal. After the terminal acquires the audio source, it can acquire the audio signal from the audio source, and after the audio signal processing module in the terminal processes the audio signal from the audio source, it can be played through a receiver or a speaker or other audio playback device. In this embodiment, the audio signal played by the sound playing device may be collected, for example, the audio signal played by the sound playing device may be collected through a microphone.

S102. Analyze the sound effect of the sound playing device according to the audio signal.

After collecting the audio signal played by the sound playback device, the audio signal can be analyzed, for example, the frequency and/or amplitude and other features of the audio signal can be extracted, and the sound playback can be determined according to the extracted frequency and/or amplitude and other features. Device sound effects. The sound effect may include that the high and low frequencies of the played sound are in an unbalanced state, for example, the played sound effect is a piercing howling sound, or the played sound effect is a dull sound, so that the user cannot hear the information carried by the sound clearly , or the volume of the played sound is abnormal, for example, the sound is too low or too loud.

S103. Adjust the processing parameters of the audio signal processing module in the terminal according to the sound effect, so as to correct the sound effect.

After the sound effect is obtained, the processing parameters of the audio signal processing module in the terminal can be dynamically adjusted according to the sound effect, and then the sound effect can be corrected by using the adjusted processing parameters. Wherein, the processing parameters of the audio signal processing module are the processing parameters corresponding to the ideal sound effect after being debugged based on the standard signal source at the initial moment.

For example, when the sound effect is unbalanced between high and low frequencies, if there are many high-frequency components, the cut-off frequency of the digital filter in the audio signal processing module can be reduced, the bandwidth of the digital filter can be reduced, and the high-frequency components in the audio signal can be suppressed. That is to correct the currently played sound effect with unbalanced high and low frequencies, so that the sound effect played later will be in a state of balanced high and low frequencies.

For another example, when the sound effect is an abnormal volume, if the volume is high, the gain in the audio signal processing module can be reduced, so that the signal of the audio signal output by the audio signal processing module can be lowered to achieve the purpose of suppressing the volume , that is, modify the currently played sound effect with an abnormal volume, so that the volume of the sound effect to be played later is within the normal range.

The audio signal processing method provided by the embodiment of the present invention collects the audio signal played by the sound playback device, analyzes the sound effect of the sound playback device according to the audio signal, and adjusts the processing parameters of the audio signal processing module in the terminal according to the sound effect, so as to Sound effects were corrected. In this embodiment, the processing parameters inside the audio processing module can be automatically adjusted according to the sound effect played by the speaker or the receiver, so that each sound source has the optimal processing parameters corresponding to it, so that any sound source can be played When , the effect of the sound played by the speaker or the receiver is in the best state.

Fig. 2 is a schematic flowchart of another audio signal processing method provided by an embodiment of the present invention. As shown in Figure 2, the audio signal processing method comprises the following steps:

S201. Collect an audio signal played by a sound playing device.

Specifically, an audio signal played by a sound playback device such as a receiver or a speaker may be collected through a microphone or a sound pickup device on the terminal.

S202. Perform fast Fourier transform on the audio signal to obtain a spectrogram of the audio signal.

After the audio signal played by the receiver or speaker is collected, the audio signal can be characterized, and the frequency characteristics of the audio signal can be extracted from the audio signal, and the high-frequency and low-frequency components carried in the audio signal can be obtained. Specifically, a fast Fourier transform (Fast Fourier Transform, FFT for short) may be used to perform spectrum analysis on the collected audio signal, so as to obtain a spectrogram of the audio signal. Wherein, the abscissa of the spectrogram is the time corresponding to the audio signal, the ordinate of the spectrogram is the frequency component contained in the audio signal, and the coordinate point value of the spectrogram is the energy value of the audio signal.

S203. Extract high-frequency components and low-frequency components of the audio signal from the spectrogram.

Specifically, the high-frequency components and low-frequency components carried by the audio signal can be extracted from the spectrogram. Generally, the high-frequency band is the frequency band above 800hz, and the frequency range of the low-frequency band is 20hz-800hz. After obtaining the spectrogram of the audio signal, the energy at each frequency point exceeding 800hz can be counted, and the high-frequency components carried by the audio signal can be obtained. Further, the energy at each frequency point from 20hz to 800hz can be counted Energy, to obtain the low-frequency components carried by the audio signal.

S204. If the high-frequency component and the low-frequency component are unbalanced, determine that the sound effect is a high-low frequency unbalance of sound.

In practical applications, in order to ensure the quality or effect of the played sound, the ratio between the high-frequency component and the low-frequency component in the audio signal is often preset as 1:1. When the ratio between the high-frequency components is 1:1, it means that the high- and low-frequency components carried in the audio signal are in a balanced state, and the sound effect played is the best. If the ratio between the high-frequency component and the low-frequency component is not 1:1, it means that the collected and played audio signal is out of balance between high and low frequencies. For example, when there are many high-frequency components, the sound effect played is harsh, and when there are many low-frequency components, the acoustic effect played is dull sound, and the user may not be able to obtain the actual effect from the sound. information.

S205. Adjust the filter parameters of the digital filter in the audio signal processing module, so that the high-frequency components and low-frequency components carried in the subsequent audio signal are in a balanced state.

When the high and low frequency components carried by the audio signal are out of balance, it is necessary to adjust the filter parameters of the digital filter in the audio signal processing module, such as the cutoff frequency and bandwidth of the digital filter. When the audio signal carries many high-frequency components, the digital filter can be adjusted to attenuate the high-frequency components through the digital filter. When the audio signal carries less high-frequency components, the digital filter can be adjusted to enhance the high-frequency components through the digital filter. After adjustment, the high and low frequency components carried in the audio signal played through the receiver or the loudspeaker can be in a balanced state.

S206. Process the audio signal from the sound source based on the adjusted audio signal processing module.

The audio source continuously sends out audio signals, and the sent audio signals need to be continuously processed in the audio signal processing module before being input to the receiver or the speaker for playback. After the audio signal enters the audio signal processing module, the audio signal processing module can process the subsequent incoming audio signal based on the adjusted processing parameters. Under normal circumstances, the characteristics of the audio signal emitted by the same audio source are stable. When the audio signal emitted by the audio source is processed based on the adjusted audio signal processing module, the processed audio signal can basically overcome the high and low frequency imbalance. The problem of making the sound effect of playback is better.

S207. Play the processed audio signal through the sound playing device.

In this embodiment, after the audio signal processing module processes the audio signal from the sound source, the processed audio signal can be played through the receiver or the speaker.

In this embodiment, the audio signal played by a sound playback device such as a loudspeaker or a receiver is collected, and then the frequency characteristics of the audio signal are analyzed. When the high and low frequency components carried by the audio signal are unbalanced, the played sound will be high and low frequency. Unbalanced, the sound effect played is poor. In order to balance the high and low frequency components, adjust the filter parameters of the digital filter in the audio signal processing module, and process the audio signal from the subsequent audio source based on the adjusted processing parameters to ensure When the processed audio signal is played by the loudspeaker or the receiver, the sound effect is better, so that the problem of high and low frequency imbalance in the previously played sound effect can be overcome.

Fig. 3 is a schematic flowchart of another audio signal processing method provided by an embodiment of the present invention. As shown in Figure 3, the audio signal processing method includes:

S301. Collect an audio signal played by a sound playing device.

S302. Acquire the amplitude of the audio signal.

Specifically, the signal strength of the audio signal, that is, the amplitude of the audio signal, is extracted from the audio signal.

S303. Compare the amplitude with a preset threshold range.

S304. If the amplitude is not within the threshold range, determine that the sound effect is abnormal sound volume.

In this embodiment, a threshold range may be preset, and the threshold range may include an upper threshold and a lower threshold. After the amplitude of the audio signal is obtained, the amplitude of the audio signal can be compared with the threshold range. If the amplitude exceeds the threshold range, that is, the amplitude is greater than the upper threshold or the amplitude is smaller than the lower threshold, it means that there is an abnormal volume of the played sound.

S305. Adjust the gain of the amplifier in the audio signal processing module, so that the amplitude of the audio signal to be played subsequently is within the threshold range.

Specifically, the gain of the amplifier in the audio signal processing module can be adjusted according to the specific situation of the abnormal volume. If the volume is abnormally small, then increase the gain of the amplifier in the audio signal processing module to make the sound of the audio signal played subsequently louder, so that the amplitude of the audio signal exceeds the lower threshold and falls within the threshold range. And if the volume is abnormally loud, then reduce the gain of the amplifier in the audio signal processing module to make the sound of the audio signal played subsequently smaller, so that the amplitude of the audio signal is lower than the upper threshold and falls within the threshold range.

S306. Process the audio signal from the sound source based on the adjusted audio signal processing module.

S307. Play the processed audio signal through the sound playing device.

For related introductions of S306-S307, reference may be made to the records of relevant content in the foregoing embodiments, and details are not repeated here.

In this embodiment, the audio signal played by a sound playback device such as a speaker or a receiver is collected, and the amplitude of the audio signal is extracted. When the amplitude of the audio signal is not within the preset threshold range, the volume of the played sound will be abnormal. , the sound effect played is poor. When the volume is abnormal, you can adjust the gain of the amplifier in the audio signal processing module, and process the audio signal from the subsequent audio source based on the adjusted processing parameters to ensure that the processed audio signal is The sound effect is better when the speaker or the receiver is played, so that the problem of high and low frequency imbalance in the previously played sound effect can be overcome.

In practical applications, the played sound effect can be determined according to the frequency and/or amplitude of the collected audio signal. For example, when it is judged that the sound effect is poor according to one of the frequency and the amplitude of the audio signal, the processing parameters of the audio signal processing module can be adjusted. When analyzing sound effects, both the frequency and amplitude of the audio signal may lead to poor sound effects, and the digital filter and amplifier of the audio signal processing module can be adjusted at the same time. This is not limited in the embodiments provided by the present invention.

FIG. 4 is a schematic diagram of an application of an audio signal processing method provided by an embodiment of the present invention. As shown in Figure 4, the sound source sends out an audio signal, and the audio signal can enter the audio signal processing module on the terminal after being decoded. The audio signal processing module can be a speech signal processing module or a music signal processing module. different specific options.

Wherein, the unit for processing digital audio signals in the audio processing module may be integrated in a digital signal processing (Digital Signal Processing, DSP for short) chip. For example, the convolution, digital filter, programmable gain amplifier (Programmable Gain Amplifier, PGA for short) and multi-segment dynamic compressor in the audio signal processing module can be integrated in the DSP chip. The decoded digital audio signal of the audio signal from the audio source can be processed in the audio signal processing module by convolution, filtering, and multi-segment dynamic compression, and then the digital-to-analog conversion is performed by the digital-to-analog converter, and then passed through the power amplifier (Power Amplifier). , referred to as PA) input to the speaker to play.

Furthermore, the microphone arranged near the speaker can collect the sound played by the speaker, amplified by the PGA, and converted by the analog-to-digital converter before entering the DSP chip. A sound effect analysis module can be arranged in the DSP chip, and the sound effect analysis module can analyze the sound effect of the collected audio signal, and then adjust the processing parameters of the audio signal processing module according to the sound effect.

For example, the sound effect analysis module may be provided with an FFT unit, which analyzes the high and low frequency components of the collected audio signal through the FFT unit, and then adjusts the filter parameters of the digital filter in the audio signal processing module.

For another example, the sound effect analysis module may also be provided with an amplitude comparison unit, which analyzes whether the sound volume of the collected audio signal is abnormal, and then adjusts the gain of the amplifier in the audio signal processing module.

In this embodiment, the processing parameters inside the audio processing module can be automatically adjusted according to the sound effect played by the speaker or the receiver, so that each sound source has the optimal processing parameters corresponding to it, so that any sound source can be played When , the effect of the sound played by the speaker or the receiver is in the best state.

Fig. 5 is a schematic structural diagram of an audio signal processing device provided by an embodiment of the present invention. As shown in FIG. 5 , the audio signal processing device includes: an acquisition module 11 , an analysis module 12 and a parameter adjustment module 13 .

Wherein, the collecting module 11 is used for collecting the audio signal played by the sound playing device.

The analysis module 12 is configured to analyze the sound effect of the sound playback device according to the audio signal.

The parameter adjustment module 13 is configured to adjust the processing parameters of the audio signal processing module in the terminal according to the sound effect, so as to modify the sound effect.

In this embodiment, the processing parameters inside the audio processing module can be automatically adjusted according to the sound effect played by the speaker or the receiver, so that each sound source has the optimal processing parameters corresponding to it, so that any sound source can be played When , the effect of the sound played by the speaker or the receiver is in the best state.

FIG. 6 is a schematic structural diagram of another audio signal processing device provided by an embodiment of the present invention. As shown in FIG. 6 , the audio signal processing device includes the acquisition module 11 , the analysis module 12 and the parameter adjustment module 13 in the above-mentioned embodiments.

Optionally, a possible structure of the analysis module 12 includes: a transformation unit 121 , an extraction unit 122 and a first determination unit 123 .

The transformation unit 121 is configured to perform fast Fourier transformation on the audio signal to obtain a spectrogram of the audio signal.

The extraction unit 122 is configured to extract high frequency components and low frequency components of the audio signal from the spectrogram.

The first determining unit 123 is configured to determine that the sound effect is an imbalance between high and low frequencies of the sound if the high frequency component is out of balance with the low frequency component.

Further, the parameter adjustment module 13 is specifically configured to adjust the filter parameters of the digital filter in the audio signal processing module, so that the high-frequency components and the low-frequency components carried in the audio signal played subsequently in equilibrium.

In this embodiment, the audio signal played by a sound playback device such as a loudspeaker or a receiver is collected, and then the frequency characteristics of the audio signal are analyzed. When the high and low frequency components carried by the audio signal are unbalanced, the played sound will be high and low frequency. Unbalanced, the sound effect played is poor. In order to balance the high and low frequency components, adjust the filter parameters of the digital filter in the audio signal processing module, and process the audio signal from the subsequent audio source based on the adjusted processing parameters to ensure When the processed audio signal is played by the loudspeaker or the receiver, the sound effect is better, so that the problem of high and low frequency imbalance in the previously played sound effect can be overcome.

Fig. 7 is a schematic structural diagram of another audio signal processing device provided by an embodiment of the present invention. As shown in FIG. 7 , the audio signal processing device includes an acquisition module 11 , an analysis module 12 and a parameter adjustment module 13 in the above embodiments.

Optionally, a possible structure of the analysis module 12 includes: an amplitude acquisition unit 124 , a comparison unit 125 and a second determination unit 126 .

The amplitude acquiring unit 124 is configured to acquire the amplitude of the audio signal.

The comparison unit 125 is configured to compare the amplitude with a preset threshold range.

The second determining unit 126 is configured to determine that the sound effect is an abnormal sound volume if the amplitude is not within the threshold range.

Further, the parameter adjustment module 13 is specifically configured to adjust the gain of the amplifier in the audio signal processing module, so that the amplitude of the audio signal played subsequently is within the threshold range.

In this embodiment, the audio signal played by a sound playback device such as a speaker or a receiver is collected, and the amplitude of the audio signal is extracted. When the amplitude of the audio signal is not within the preset threshold range, the volume of the played sound will be abnormal. , the sound effect played is poor. When the volume is abnormal, you can adjust the gain of the amplifier in the audio signal processing module, and process the audio signal from the subsequent audio source based on the adjusted processing parameters to ensure that the processed audio signal is The sound effect is better when the speaker or the receiver is played, so that the problem of high and low frequency imbalance in the previously played sound effect can be overcome.

FIG. 8 is a schematic structural diagram of another audio signal processing device according to an embodiment of the present invention. As shown in FIG. 6 , the audio signal processing device includes the acquisition module 11 , the analysis module 12 and the parameter adjustment module 13 in the above embodiments, and also includes: a processing module 14 and a playback module 15 .

In practical applications, the played sound effect can be determined according to the frequency and/or amplitude of the collected audio signal. The analysis module 12 in this embodiment may include: the transformation unit 121 , the extraction unit 122 , the first determination unit 123 , the amplitude acquisition unit 124 , the comparison unit 125 and the second determination unit 126 in the above embodiments.

The frequency and/or amplitude of the collected audio signal can be realized through the analysis module 12 provided in this embodiment to determine the purpose of the played sound effect. For the specific process, reference may be made to the records of related content in the foregoing embodiments, and details are not repeated here.

The processing module 14 is configured to process the audio signal sent by the sound source based on the adjusted audio signal processing module.

The playing module 15 is configured to play the processed audio signal through the sound playing device.

Further, the collection module 11 is specifically configured to collect the audio signal played by the sound playback device through the microphone on the terminal.

In this embodiment, the processing parameters inside the audio processing module can be automatically adjusted according to the sound effect played by the speaker or the receiver, so that each sound source has the optimal processing parameters corresponding to it, so that any sound source can be played When , the effect of the sound played by the speaker or the receiver is in the best state.

FIG. 9 is a schematic structural diagram of a terminal device provided by an embodiment of the present invention. As shown in FIG. 5 , the terminal device includes one or more of the following components: a housing 21 and a processor 211 , a memory 212 , a microphone 213 , and a speaker 214 or receiver 215 located in the housing 21 .

Wherein, the processor 211 runs the program corresponding to the executable program code by reading the executable program code stored in the memory 212, so as to perform the following steps:

The audio signal played by the sound playing device is collected; wherein, the sound playing device may be a speaker 214 or a receiver 215 . Specifically, the audio signal played by the speaker 214 or the receiver 215 may be collected through the microphone 213 .

The sound effect of the sound playing device is analyzed according to the audio signal.

Adjust the processing parameters of the audio signal processing module in the terminal according to the sound effect, so as to modify the sound effect.

In this embodiment, the processing parameters inside the audio processing module can be automatically adjusted according to the sound effect played by the speaker or the receiver, so that each sound source has the optimal processing parameters corresponding to it, so that any sound source can be played When , the effect of the sound played by the speaker or the receiver is in the best state.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing custom logical functions or steps of a process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium, For use with instruction execution systems, devices, or devices (such as computer-based systems, systems including processors, or other systems that can fetch instructions from instruction execution systems, devices, or devices and execute instructions), or in conjunction with these instruction execution systems, devices or equipment used. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use in or in conjunction with an instruction execution system, device or device. More specific examples (non-exhaustive list) of computer-readable media include the following: electrical connection with one or more wires (electronic device), portable computer disk case (magnetic device), random access memory (RAM), Read Only Memory (ROM), Erasable and Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, since the program can be read, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable processing if necessary. The program is processed electronically and stored in computer memory.

It should be understood that various parts of the present invention can be realized by hardware, software, firmware or their combination. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented by any one or a combination of the following techniques known in the art: a discrete Logic circuits, ASICs with suitable combinational logic gates, Programmable Gate Arrays (PGA), Field Programmable Gate Arrays (FPGA), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (15)

1. An audio signal processing method, characterized in that, comprising: Collecting the audio signal played by the sound playback device; analyzing the sound effect of the sound playing device according to the audio signal; Adjusting the processing parameters of the audio signal processing module in the terminal according to the sound effect to modify the sound effect. 2. The audio signal processing method according to claim 1, wherein the analyzing the sound effect of the sound playback device according to the audio signal comprises: performing a fast Fourier transform on the audio signal to obtain a spectrogram of the audio signal; extracting high frequency components and low frequency components of the audio signal from the spectrogram; If the high-frequency component is out of balance with the low-frequency component, it is determined that the sound effect is a high-low frequency imbalance of sound. 3. The audio signal processing method according to claim 2, wherein the adjusting the processing parameters of the audio signal processing module in the terminal according to the sound effect to modify the sound effect includes: Adjusting the filter parameters of the digital filter in the audio signal processing module, so that the high frequency component and the low frequency component carried in the audio signal played subsequently are in a balanced state. 4. The audio signal processing method according to claim 1, wherein the analyzing the sound effect of the sound playback device according to the audio signal comprises: obtaining the amplitude of the audio signal; comparing the amplitude with a preset threshold range; If the amplitude is not within the threshold range, it is determined that the sound effect is an abnormal sound volume. 5. The audio signal processing method according to claim 4, wherein the adjusting the processing parameters of the audio signal processing module in the terminal according to the sound effect to modify the sound effect includes: Adjusting the gain of the amplifier in the audio signal processing module, so that the amplitude of the audio signal played subsequently is within the threshold range. 6. The audio signal processing method according to claim 3 or 5, wherein the processing parameters of the audio signal processing module in the terminal are adjusted according to the sound effect, so that after the sound effect is modified ,include: Processing the audio signal sent by the sound source based on the adjusted audio signal processing module; and playing the processed audio signal through the sound playing device. 7. The audio signal processing method according to any one of claims 1-5, wherein said collecting the audio signal played by the sound playback device includes: The audio signal played by the sound playback device is collected through the microphone on the terminal. 8. An audio signal processing device, characterized in that, comprising: The collection module is used to collect the audio signal played by the sound playback device; An analysis module, configured to analyze the sound effect of the sound playback device according to the audio signal; The parameter adjustment module is configured to adjust the processing parameters of the audio signal processing module in the terminal according to the sound effect, so as to modify the sound effect. 9. The audio signal processing device according to claim 8, wherein the analysis module comprises: A transform unit, configured to perform fast Fourier transform on the audio signal to obtain a spectrogram of the audio signal; an extraction unit, configured to extract high-frequency components and low-frequency components of the audio signal from the spectrogram; The first determining unit is configured to determine that the sound effect is a high-low frequency imbalance of sound if the high-frequency component is out of balance with the low-frequency component. 10. The audio signal processing device according to claim 9, wherein the parameter adjustment module is specifically used to adjust the filter parameters of the digital filter in the audio signal processing module, so that subsequent playback The high frequency component and the low frequency component carried in the audio signal are in a balanced state. 11. The audio signal processing device according to claim 10, wherein the analysis module includes: an amplitude acquisition unit, configured to acquire the amplitude of the audio signal; a comparison unit, configured to compare the amplitude with a preset threshold range; The second determining unit is configured to determine that the sound effect is an abnormal sound volume if the amplitude is not within the threshold range. 12. The audio signal processing device according to claim 11, wherein the parameter adjustment module is specifically configured to adjust the gain of the amplifier in the audio signal processing module, so that the audio signal played subsequently The amplitude of is within the threshold range. 13. The audio signal processing device according to claim 10 or 12, further comprising: A processing module, configured to process the audio signal sent by the sound source based on the adjusted audio signal processing module; The playing module is used to play the processed audio signal through the sound playing device. 14. The audio signal processing device according to any one of claims 8-12, wherein the acquisition module is specifically configured to record the audio played by the sound playback device through the microphone on the terminal. The signal is collected. 15. A terminal, characterized in that it comprises one or more of the following components: a housing, a processor located in the housing, a memory, a microphone, and a sound playback device, wherein the processor reads the memory Executable program code stored in to run the program corresponding to the executable program code for performing the following steps: Collecting the audio signal played by the sound playback device; analyzing the sound effect of the sound playing device according to the audio signal; Adjust the processing parameters of the audio signal processing module in the terminal according to the sound effect, so as to modify the sound effect.