CN113763972B - Method, device, equipment and computer storage medium for adjusting audio parameters - Google Patents

Abstract

The embodiment of the invention provides a method, a device, equipment and a computer storage medium for adjusting audio parameters. The method comprises the following steps: acquiring frequency domain data of audio in a preset time period in the audio being played; filtering the frequency domain data according to a first preset threshold to obtain first frequency domain data; filtering the first frequency domain data according to a second preset threshold to obtain second frequency domain data; and adjusting the audio parameters of the audio playing device according to the second frequency domain data and the preset adjusting parameters. The method for adjusting the audio parameters can automatically adjust the audio parameters of the playing equipment according to the characteristics of different music.

Description

Method, device, equipment and computer storage medium for adjusting audio parameters

Technical Field

The present invention belongs to the field of acoustics, and in particular relates to a method, a device, a equipment and a computer storage medium for adjusting audio parameters.

Background technique

At present, more and more devices can play music. The music audio parameters of these devices are the audio parameters designed and debugged by R&D engineers based on the sound cavity and circuit design of the device itself before leaving the factory. For example, before the device leaves the factory, the manufacturer debugs the music effect based on the structural performance and circuit performance of the device itself, and then determines the final music effect of the device based on a large number of tests.

However, this method of setting audio parameters by the manufacturer cannot be customized according to different music, and can only set a universal music parameter. In this way, it is difficult to reflect the music effects of different music, so a method is needed to adjust the audio parameters for different music.

Summary of the invention

The embodiments of the present invention provide a method, apparatus, device and computer storage medium for adjusting audio parameters, which can autonomously adjust the audio parameters of a playback device according to the characteristics of different music.

In a first aspect, an embodiment of the present invention provides a method for adjusting audio parameters, the method being applied to an audio playback device, the method comprising: obtaining frequency domain data of audio within a preset time period in the audio being played;

According to a first preset threshold, filtering the frequency domain data to obtain first frequency domain data; and according to a second preset threshold, filtering the first frequency domain data to obtain second frequency domain data;

The audio parameters of the audio playback device are adjusted according to the second frequency domain data and the preset adjustment parameters.

In some implementations of the first aspect, the preset adjustment parameters include preset bandwidth and gain parameters;

Adjusting the audio parameters of the audio playback device according to the second frequency domain data and the preset adjustment parameters includes:

Acquire the frequency bandwidth of the second frequency domain data;

If the bandwidth of the second frequency domain data is greater than the preset bandwidth, obtaining the frequency band where the second frequency domain data is located;

According to the gain parameter, the audio parameter of the frequency band where the second frequency domain data is located is increased.

In some implementations of the first aspect, if the bandwidth of the second frequency domain data is less than or equal to the preset bandwidth, a frequency band where the first frequency domain data is located is acquired;

According to the gain parameter, the audio parameter of the frequency band where the first frequency domain data is located is adjusted higher.

In some implementations of the first aspect, the first preset threshold is smaller than the second preset threshold.

In some implementations of the first aspect, obtaining frequency domain data of audio within a preset time period in the audio being played includes: obtaining time domain data of audio within a preset time period in the audio being played; and performing Fourier transform on the time domain data to obtain frequency domain data.

In a second aspect, an embodiment of the present invention provides a device for adjusting audio parameters, the device comprising: an acquisition module, configured to acquire frequency domain data of audio within a preset time period in the audio being played;

A filtering module, configured to filter the frequency domain data according to a first preset threshold to obtain first frequency domain data; and to filter the first frequency domain data according to a second preset threshold to obtain second frequency domain data;

The parameter adjustment module is used to adjust the audio parameters of the audio playback device according to the second frequency domain data and preset adjustment parameters.

In some implementations of the second aspect, the preset adjustment parameters include preset bandwidth and gain parameters;

A parameter adjustment module, used for obtaining the bandwidth of the second frequency domain data;

If the bandwidth of the second frequency domain data is greater than the preset bandwidth, the parameter adjustment module is further used to obtain the frequency band where the second frequency domain data is located; and increase the audio parameters of the frequency band where the second frequency domain data is located according to the gain parameter.

In some implementation methods of the second aspect, if the bandwidth of the second frequency domain data is less than or equal to the preset bandwidth, the parameter adjustment module is also used to obtain the frequency band where the first frequency domain data is located; and according to the gain parameter, increase the audio parameters of the frequency band where the first frequency domain data is located.

In a third aspect, the present invention provides an audio parameter adjustment device, comprising: a processor and a memory storing computer program instructions; when the processor executes the computer program instructions, it implements the audio parameter adjustment method described in the first aspect or any implementable method of the first aspect.

In a fourth aspect, the present invention provides a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implement the method for adjusting audio parameters described in the first aspect or any implementable manner of the first aspect.

The embodiment of the present invention provides a method for adjusting audio parameters. For the frequency domain data of the audio currently being played by the user, first, the frequency domain data is filtered twice with different preset thresholds to obtain the filtered frequency domain data, so that the analysis of the frequency domain data of the audio currently being played is more accurate. Then, according to the preset bandwidth and the filtered frequency domain data, the frequency band of the audio currently being played is determined, and then the audio parameters of the audio currently being played are determined in combination with the gain parameters that meet the user's preferences. The audio parameters can be adjusted in real time according to the frequency characteristics of the current music to make the currently played music more pleasant to listen to.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following is a brief introduction to the drawings required for use in the embodiment of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic diagram of an audio playback process provided by an embodiment of the present invention;

FIG2 is a schematic flow chart of a method for adjusting audio parameters provided by an embodiment of the present invention;

FIG3 is a schematic diagram of frequency domain energy distribution provided by an embodiment of the present invention;

FIG4 is a schematic diagram of another audio playback process provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of the structure of an audio parameter adjustment device provided by an embodiment of the present invention

FIG. 6 is a schematic diagram of the structure of an audio parameter adjustment device provided by an embodiment of the present invention.

Detailed ways

The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

At present, more and more devices can play music. The music audio parameters of these devices are the audio parameters designed and debugged by R&D engineers based on the sound cavity and circuit design of the device itself before leaving the factory. For example, before the device leaves the factory, the manufacturer debugs the music effect based on the structural performance and circuit performance of the device itself, and then determines the final music effect of the device based on a large number of tests.

Figure 1 shows a common audio playback process. The digital signal processing (DSP) obtains the audio and transmits it to the audio processing chip, such as the codec. After being processed by the audio processing chip, it is directly transmitted to the speaker for playback. This method of setting audio parameters by the manufacturer cannot be customized according to different music, and can only set a universal music playback parameter. In this way, it is difficult to reflect the musical effects of different music. Therefore, a method is needed to adjust the audio parameters for different music.

In order to solve the problems of the prior art, the embodiments of the present invention provide a method, device, equipment and computer storage medium for adjusting audio parameters. The audio parameters of a playback device can be adjusted autonomously according to the characteristics of different music. The method for adjusting audio parameters provided by the embodiments of the present invention is first introduced below.

FIG2 is a flow chart showing a method for adjusting audio parameters provided by an embodiment of the present invention. The method for adjusting audio parameters shown in FIG2 is applied to an audio playback device. As shown in FIG2 , the method may include the following steps:

S210: Obtain frequency domain data of the audio in a preset time period of the audio being played.

In some embodiments, the audio playback system may obtain the audio being played. In order to adjust the audio parameters of the audio being played in real time, the audio playback device may obtain the frequency domain data of the audio within a preset time period.

When a user plays a large amount of music, the audio playback system will count the frequency bands where the frequency energy of the audio played by the user is more concentrated. Based on the statistical data, the audio playback system can automatically adjust the amplitude of the recorded frequency.

In some embodiments, optionally, by acquiring time domain data of audio within a preset time period in the audio being played; Fourier transform is performed on the time domain data to obtain frequency domain data.

The preset time period may be 5 seconds, 10 seconds, etc.

In some embodiments, for example, the preset time period in the audio may be the first 10 seconds of the audio playback.

S220. Filter the frequency domain data according to a first preset threshold to obtain first frequency domain data.

S230. Filter the first frequency domain data according to a second preset threshold to obtain second frequency domain data.

In some embodiments, the first preset threshold is less than the second preset threshold.

After the first preset threshold, the audio in the preset time period obtains the first frequency domain data, that is, the frequency domain energy distribution of the audio being played after filtering at the first preset threshold. The audio playback system will retain the frequency domain energy distribution after filtering at the first preset threshold. And according to the second preset threshold, the first frequency domain data is filtered for the second time to obtain the second frequency domain data, that is, the frequency domain energy distribution after filtering the first frequency domain data at the second preset threshold.

S240: Adjust audio parameters of the audio playback device according to the second frequency domain data and preset adjustment parameters.

In some embodiments, the preset adjustment parameters may include preset bandwidth and gain parameters. Optionally, adjusting the audio parameters of the audio playback device according to the second frequency domain data and the preset adjustment parameters includes: obtaining the bandwidth of the second frequency domain data; if the bandwidth of the second frequency domain data is greater than the preset bandwidth, obtaining the frequency band where the second frequency domain data is located; and increasing the audio parameters of the frequency band where the second frequency domain data is located according to the gain parameter.

As a specific example, in conjunction with the frequency domain energy distribution diagram of the audio shown in FIG3, first, the frequency domain data of the audio within the preset time period is filtered twice with a preset threshold value to obtain a frequency domain energy distribution. If the bandwidth of the frequency domain energy distribution at this time is greater than the preset bandwidth, the audio playback system can record the specific frequency band of the frequency domain energy distribution at this time, and optionally use the frequency band as the audio feature of the audio being played. Then, the audio playback system determines the energy output of the frequency band data according to the gain parameter, and uses the audio parameters of the frequency band after the gain parameter is increased as the audio parameters of the audio playback device playing the audio being played.

It is understandable that the user can set the gain parameter according to his or her own preferences.

In some embodiments, if the bandwidth of the second frequency domain data is less than or equal to the preset bandwidth, the frequency band where the first frequency domain data is located is obtained; and the audio parameters of the frequency band where the first frequency domain data is located are increased according to the gain parameter.

As a specific example, if the frequency domain data of the audio within the preset time period is filtered twice with a preset threshold value and the frequency domain energy distribution is less than or equal to the preset bandwidth, the audio playback system will obtain the specific frequency band where the frequency domain energy distribution is retained after the first preset threshold filtering, and optionally use the frequency band as the audio feature of the audio being played. Then, the audio playback system will increase the energy of the data output of the frequency band according to the gain parameter, and use the audio parameters of the frequency band after the gain parameter is increased as the audio parameters of the audio being played by the audio playback device.

In some embodiments, the preset bandwidth may be, for example, 300 Hz. It will be appreciated that the preset bandwidth may be set according to user preferences.

Fig. 4 is a schematic diagram of the audio playback process of the audio parameter adjustment method provided by the embodiment of the present invention. As shown in Fig. 4, after the digital signal processor obtains the audio within the preset time period, the audio within the preset time period is first filtered twice by the audio filter, and then the frequency domain data after the two filtering processes are returned to the digital signal processor for the digital signal processor to adjust the audio parameters, and finally, the audio parameters after the adjustment are combined with the audio after the preset time period transmitted to the audio processing chip, the codec (Codec), and then the codec transmits the audio after the preset time period to the speaker for playback.

The embodiment of the present invention provides a method for adjusting audio parameters. For the frequency domain data of the audio currently being played by the user, first, the frequency domain data is filtered twice with different preset thresholds to obtain the filtered frequency domain data, so that the analysis of the frequency domain data of the audio currently being played is more accurate. Then, according to the preset bandwidth and the filtered frequency domain data, the frequency band of the audio currently being played is determined, and then the audio parameters of the audio currently being played are determined in combination with the gain parameters that meet the user's preferences. The audio parameters can be adjusted in real time according to the frequency characteristics of the current music to make the currently playing music more pleasant and more distinctive.

Based on the audio parameter adjustment method provided in the above embodiment, the present application also provides an audio parameter adjustment device accordingly. Please refer to the following embodiment.

FIG5 is a schematic diagram of the structure of an audio parameter adjustment device provided by an embodiment of the present invention. As shown in FIG5 , the audio parameter adjustment device may include: an acquisition module 501 , a filtering module 502 , and a parameter adjustment module 503 .

Specifically, the acquisition module 501 is used to acquire frequency domain data of the audio in a preset time period of the audio being played.

The filtering module 502 is used to filter the frequency domain data according to a first preset threshold to obtain first frequency domain data; and to filter the first frequency domain data according to a second preset threshold to obtain second frequency domain data.

The parameter adjustment module 503 is used to adjust the audio parameters of the audio playback device according to the second frequency domain data and the preset adjustment parameters.

In some embodiments, the preset adjustment parameters include preset bandwidth and gain parameters; the parameter adjustment module 330 is used to obtain the bandwidth of the second frequency domain data; if the bandwidth of the second frequency domain data is greater than the preset bandwidth, the parameter adjustment module is also used to obtain the frequency band where the second frequency domain data is located; according to the gain parameter, the audio parameters of the frequency band where the second frequency domain data is located are adjusted up.

In some embodiments, if the bandwidth of the second frequency domain data is less than or equal to the preset bandwidth, the parameter adjustment module 503 is also used to obtain the frequency band where the first frequency domain data is located; and increase the audio parameters of the frequency band where the first frequency domain data is located according to the gain parameter.

In some embodiments, the first preset threshold is less than the second preset threshold.

In some embodiments, the acquisition module 501 is used to acquire time domain data of the audio in a preset time period in the audio being played; and perform Fourier transform on the time domain data to obtain frequency domain data.

It can be understood that the audio parameter adjustment device in the embodiment of the present invention can correspond to the execution entity of the audio parameter adjustment method in the embodiment of the present invention. The specific details of the operation and/or function of each module/unit of the audio parameter adjustment device can be found in the description of the corresponding parts in the audio parameter adjustment method in the above-mentioned embodiment of the present invention. For the sake of brevity, they will not be repeated here.

The audio parameter adjustment device provided in the embodiment of the present invention, for the frequency domain data of the audio currently being played by the user, first, filters the frequency domain data twice with different preset thresholds to obtain the filtered frequency domain data, so that the analysis of the frequency domain data of the audio currently being played is more accurate. Then, according to the preset bandwidth and the filtered frequency domain data, the frequency band of the audio currently being played is determined, and then combined with the gain parameters that meet the user's preferences, the audio parameters of the audio currently being played are determined, and the audio parameters can be adjusted in real time according to the frequency characteristics of the current music to make the currently played music more pleasant and more distinctive.

FIG. 6 is a schematic diagram of the hardware structure of an audio parameter adjustment device provided by an embodiment of the present invention.

As shown in Fig. 6, the audio parameter adjustment device 600 in this embodiment includes an input device 601, an input interface 602, a central processing unit 603, a memory 604, an output interface 605, and an output device 606. The input interface 602, the central processing unit 603, the memory 604, and the output interface 605 are interconnected via a bus 610, and the input device 601 and the output device 606 are connected to the bus 610 via the input interface 602 and the output interface 605, respectively, and then connected to other components of the audio parameter adjustment device.

Specifically, the input device 601 receives input information from the outside and transmits the input information to the central processing unit 603 through the input interface 602; the central processing unit 603 processes the input information based on the computer executable instructions stored in the memory 604 to generate output information, temporarily or permanently stores the output information in the memory 604, and then transmits the output information to the output device 606 through the output interface 605; the output device 606 outputs the output information to the outside of the audio parameter adjustment device for user use.

That is, the audio parameter adjustment device shown in FIG. 6 may also be implemented to include: a memory storing computer executable instructions; and a processor, which can implement the audio parameter adjustment method described in conjunction with the example of the present invention when executing the computer executable instructions.

In one embodiment, the audio parameter adjustment device shown in FIG. 6 includes: a memory 604 for storing programs; and a processor 603 for running the programs stored in the memory to execute the audio parameter adjustment method provided in the embodiment of the present invention.

The embodiment of the present invention further provides a computer-readable storage medium, on which computer program instructions are stored; when the computer program instructions are executed by a processor, the audio parameter adjustment method provided by the embodiment of the present invention is implemented.

It should be clear that the present invention is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

The functional blocks shown in the structural block diagram described above can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), appropriate firmware, plug-in, function card, etc. When implemented in software, the elements of the present invention are programs or code segments used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or communication link by a data signal carried in a carrier. "Machine-readable medium" may include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, read-only memory (Read-Only Memory, ROM), flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (Radio Frequency, RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in a different order from the embodiments, or several steps can be performed simultaneously.

The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

Claims (5)

1. A method for adjusting audio parameters, characterized in that it is applied to an audio playback device, comprising: Obtain frequency domain data of the audio within a preset time period in the audio being played; According to a first preset threshold, filtering the frequency domain data to obtain first frequency domain data; filtering the first frequency domain data according to a second preset threshold to obtain second frequency domain data, wherein the first preset threshold is less than the second preset threshold; Adjusting audio parameters of the audio playback device according to the second frequency domain data and preset adjustment parameters, wherein the preset adjustment parameters include preset bandwidth and gain parameters; The step of adjusting the audio parameters of the audio playback device according to the second frequency domain data and the preset adjustment parameters includes: Acquire the frequency bandwidth of the second frequency domain data; If the bandwidth of the second frequency domain data is greater than the preset bandwidth, obtaining the frequency band where the second frequency domain data is located; According to the gain parameter, increasing the audio parameter of the frequency band where the second frequency domain data is located; If the bandwidth of the second frequency domain data is less than or equal to the preset bandwidth, obtaining the frequency band where the first frequency domain data is located; According to the gain parameter, the audio parameter of the frequency band where the first frequency domain data is located is increased. 2. The method according to claim 1, wherein obtaining frequency domain data of the audio in a preset time period of the audio being played comprises: Obtain the time domain data of the audio within a preset time period in the audio being played; Performing Fourier transform on the time domain data to obtain the frequency domain data. 3. A device for adjusting audio parameters, characterized in that the device comprises: An acquisition module, used to acquire frequency domain data of the audio in a preset time period in the audio being played; a filtering module, configured to filter the frequency domain data according to a first preset threshold to obtain first frequency domain data; and filter the first frequency domain data according to a second preset threshold to obtain second frequency domain data, wherein the first preset threshold is less than the second preset threshold; A parameter adjustment module, configured to improve audio parameters of the audio playback device according to the second frequency domain data and preset adjustment parameters, wherein the preset adjustment parameters include preset bandwidth and gain parameters; The parameter adjustment module is further used to obtain the frequency bandwidth of the second frequency domain data; If the bandwidth of the second frequency domain data is greater than the preset bandwidth, the parameter adjustment module is further used to obtain the frequency band where the second frequency domain data is located; and increase the audio parameter of the frequency band where the second frequency domain data is located according to the gain parameter; If the bandwidth of the second frequency domain data is less than or equal to the preset bandwidth, the parameter adjustment module is further used to obtain the frequency band where the first frequency domain data is located; and increase the audio parameters of the frequency band where the first frequency domain data is located according to the gain parameter. 4. An audio parameter adjustment device, characterized in that the device comprises: a processor, and a memory storing computer program instructions; The processor reads and executes the computer program instructions to implement the audio parameter adjustment method according to any one of claims 1-2. 5. A computer storage medium, characterized in that computer program instructions are stored on the computer storage medium, and when the computer program instructions are executed by a processor, the audio parameter adjustment method according to any one of claims 1 to 2 is implemented.