CN113763972B - Method, device, equipment and computer storage medium for adjusting audio parameters - Google Patents
Method, device, equipment and computer storage medium for adjusting audio parameters Download PDFInfo
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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
Technical Field
The present invention belongs to the field of acoustics, and in particular, relates to a method, an apparatus, a device, and a computer storage medium for adjusting audio parameters.
Background
Currently, more and more devices are capable of playing music, and the music audio parameters of the devices are audio parameters which are debugged by research and development engineers aiming at the sound cavity and circuit design of the devices before leaving the factory. For example, before the equipment leaves the factory, manufacturers debug the music effect according to the structural performance of the equipment, the circuit performance and then determine the final music effect of the equipment appearance according to a large number of tests.
However, the method for setting audio parameters by a manufacturer cannot be customized and debugged according to different music, and only one general music parameter can be set. Thus, it is difficult to embody the musical effects of different music, and therefore, a method capable of adjusting audio parameters for different music is required.
Disclosure of Invention
The embodiment of the invention provides a method, a device, equipment and a computer storage medium for adjusting audio parameters, which can automatically adjust the audio parameters of playing equipment according to the characteristics of different music.
In a first aspect, an embodiment of the present invention provides a method for adjusting an audio parameter, where the method is applied to an audio playing device, and the method includes: 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.
In some implementations of the first aspect, the preset adjustment parameters include preset bandwidth and gain parameters;
according to the second frequency domain data and the preset adjustment parameters, adjusting the audio parameters of the audio playing device, including:
Acquiring the bandwidth of the second frequency domain data;
If the frequency bandwidth of the second frequency domain data is larger than the preset frequency bandwidth, acquiring a frequency band where the second frequency domain data is located;
and according to the gain parameter, the audio parameter of the frequency band where the second frequency domain data is located is regulated up.
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, acquiring a frequency band in which the first frequency domain data is located;
and according to the beneficial parameters, the audio parameters of the frequency band where the first frequency domain data are located are heightened.
In some implementations of the first aspect, the first preset threshold is less than the second preset threshold.
In some implementations of the first aspect, obtaining frequency domain data of audio within a preset time period in audio being played includes: acquiring time domain data of the audio in a preset time period in the audio being played; and carrying out Fourier transform on the time domain data to obtain frequency domain data.
In a second aspect, an embodiment of the present invention provides an apparatus for adjusting an audio parameter, where the apparatus includes: the acquisition module is used for acquiring frequency domain data of the audio in a preset time period in the audio being played;
The filtering module is used for 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 the parameter adjusting module is used for adjusting the audio parameters of the audio playing equipment according to the second frequency domain data and the preset adjusting parameters.
In some implementations of the second aspect, the preset adjustment parameters include preset bandwidth and gain parameters;
the parameter adjusting module is used for acquiring the frequency width of the second frequency domain data;
If the frequency bandwidth of the second frequency domain data is larger than the preset frequency bandwidth, the parameter adjusting module is further used for acquiring the frequency band where the second frequency domain data is located; and according to the gain parameter, the audio parameter of the frequency band where the second frequency domain data is located is regulated up.
In some implementations of the second aspect, if the bandwidth of the second frequency domain data is less than or equal to the preset bandwidth, the parameter adjusting module is further configured to obtain a frequency band where the first frequency domain data is located; and according to the gain parameter, the audio parameter of the frequency band where the first frequency domain data is located is regulated.
In a third aspect, the present invention provides an audio parameter adjustment apparatus, comprising: a processor and a memory storing computer program instructions; the processor when executing the computer program instructions implements the method of audio parameter adjustment as described in the first aspect or any of the realizations of the first aspect.
In a fourth aspect, the present invention provides a computer readable storage medium having stored thereon computer program instructions which when executed by a processor implement the method of audio parameter adjustment of the first aspect or any of the realizable forms of the first aspect.
The embodiment of the invention provides a method for adjusting audio parameters, which is used for filtering frequency domain data of audio currently played by a user through two different preset thresholds, so that the filtered frequency domain data is obtained, and the analysis of the frequency domain data of the audio currently played is more accurate. Then, according to the preset bandwidth and the filtered frequency domain data, determining the frequency band of the audio currently being played, and then determining the audio parameters of the audio currently being played by combining the gain parameters which accord with the preference of the user, so that the audio parameters can be adjusted in real time according to the frequency characteristics of the current music, and the current played music is better audible.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings that are needed to be used in the embodiments of the present invention will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.
Fig. 1 is a schematic diagram of an audio playing flow provided in an embodiment of the present invention;
FIG. 2 is a flow chart of a method for adjusting audio parameters according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a frequency domain energy distribution provided by an embodiment of the present invention;
FIG. 4 is a schematic diagram of another audio playback process according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an audio parameter adjusting device according to an embodiment of the present invention
Fig. 6 is a schematic structural diagram of an audio parameter adjusting apparatus according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely configured to illustrate the invention and are not configured to limit the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Currently, more and more devices are capable of playing music, and the music audio parameters of the devices are audio parameters which are debugged by research and development engineers aiming at the sound cavity and circuit design of the devices before leaving the factory. For example, before the equipment leaves the factory, manufacturers debug the music effect according to the structural performance of the equipment, the circuit performance and then determine the final music effect of the equipment appearance according to a large number of tests.
Fig. 1 shows a conventional audio playing Process, in which a digital signal processor (DIGITAL SIGNAL Process, DSP) acquires audio and transmits the audio to an audio processing chip, such as a Codec (Codec), and the audio processing chip processes the audio and directly transmits the audio to a loudspeaker for playing. The method for setting the audio parameters by the manufacturer cannot be customized and debugged according to different music, and only one general music playing parameter can be set. Thus, it is difficult to embody the musical effects of different music, and therefore, a method capable of adjusting audio parameters for different music is required.
In order to solve the problems in the prior art, the embodiment of the invention provides a method, a device, equipment and a computer storage medium for adjusting audio parameters. The audio parameters of the playing device can be adjusted according to the characteristics of different music autonomously. The following first describes a method for adjusting audio parameters according to an embodiment of the present invention.
Fig. 2 is a flow chart of a method for adjusting audio parameters according to an embodiment of the present invention. The method for adjusting audio parameters shown in fig. 2 is applied to an audio playing device, and as shown in fig. 2, the method may include the following steps:
s210, acquiring frequency domain data of the audio in a preset time period in the audio being played.
In some embodiments, the audio playing system may acquire the audio being played, and in order to implement real-time adjustment of audio parameters of the audio being played, the audio playing device may acquire frequency domain data of the audio within a preset period of time.
When a large number of users play music, the audio playing system can count the frequency band in which the frequency energy of the audio played by the users is concentrated, and according to the statistical data, the audio playing system can automatically adjust the amplitude of the recorded frequency.
In some embodiments, optionally, by obtaining time domain data of audio within a preset time period in the audio being played; and carrying out Fourier transform on the time domain data to obtain frequency domain data.
The preset time period may be 5 seconds, 10 seconds, or the like.
In some embodiments, for example, the preset time period in the audio may be the first 10 seconds when the audio is played.
S220, filtering the frequency domain data according to a first preset threshold to obtain first frequency domain data.
S230, filtering 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 audio frequency in the preset time period is at the first preset threshold, first frequency domain data, namely the frequency domain energy distribution of the audio frequency being played after being filtered by the first preset threshold, is obtained. The audio playing system can keep the frequency domain energy distribution after the first preset threshold filtering. And performing second filtering on the first frequency domain data according to a second preset threshold to obtain second frequency domain data, namely frequency domain energy distribution after the second preset threshold filters the first frequency domain data.
S240, adjusting the audio parameters of the audio playing device according to the second frequency domain data and the preset adjusting parameters.
In some embodiments, the preset adjustment parameters may include preset bandwidth and gain parameters. Optionally, adjusting the audio parameters of the audio playing device according to the second frequency domain data and the preset adjustment parameters includes: acquiring the bandwidth of the second frequency domain data; if the frequency bandwidth of the second frequency domain data is larger than the preset frequency bandwidth, acquiring a frequency band where the second frequency domain data is located; and according to the gain parameter, the audio parameter of the frequency band where the second frequency domain data is located is regulated up.
As a specific example, in combination with the frequency domain energy distribution diagram of the audio shown in fig. 3, first, the frequency domain data of the audio in the preset time period is filtered by the preset threshold value twice to obtain the frequency domain energy distribution, and if the bandwidth of the frequency domain energy distribution at this time is greater than the preset bandwidth, the audio playing system can record which frequency band is specifically the frequency domain energy distribution at this time, and optionally, the frequency band is used as the audio feature of the audio being played. Then, the audio playing system determines the energy output by the frequency band data according to the gain parameter, and takes the audio parameter of the frequency band after the gain parameter is adjusted to be high as the audio parameter of the audio being played by the audio playing device.
It will be appreciated that the user may set the gain parameters according to his own preferences.
In some embodiments, if the bandwidth of the second frequency domain data is less than or equal to the preset bandwidth, acquiring the frequency band in which the first frequency domain data is located; and according to the gain parameter, the audio parameter of the frequency band where the first frequency domain data is located is regulated up.
As a specific example, after the frequency domain data of the audio in the preset time period is filtered by the preset threshold value twice, the frequency domain energy distribution obtained is smaller than or equal to the preset bandwidth, and then the audio playing system may obtain the frequency band where the frequency domain energy distribution reserved after the first preset threshold filtering is specifically located, and optionally, the frequency band is used as the audio feature of the audio being played. Then, the audio playing system increases the energy of the data output of the frequency band according to the gain parameter, and takes the audio parameter of the frequency band after the gain parameter is increased as the audio parameter of the audio playing device to play the audio being played.
In some embodiments, the preset bandwidth may be, for example, 300HZ, and it is understood that the preset bandwidth may be set according to the preference of the user.
Fig. 4 is an audio playing flow chart of an audio parameter adjusting method according to an embodiment of the invention. As shown in fig. 4, after the digital signal processor acquires the audio in the preset time period, the audio pre-existing audio filter in the preset time period performs two times of filtering processing on the audio in the preset time period, then the audio is returned to the digital signal processor according to the frequency domain data after the two times of filtering processing, so as to be used for the digital signal processor to adjust the audio parameters, finally, the adjusted audio parameters are combined with the audio after the preset time period transmitted to the audio processing chip, and the audio after the preset time period is transmitted to the loudspeaker by the Codec for playing.
According to the audio parameter adjustment method provided by the embodiment of the invention, the frequency domain data of the audio currently being played by the user is filtered twice by different preset thresholds, so that the filtered frequency domain data is obtained, and 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 by combining the gain parameters which accord with the preferences of the user, so that the audio parameters can be adjusted in real time according to the frequency characteristics of the current music, and the music currently being played is better in hearing and has the characteristics.
Based on the method for adjusting the audio parameters provided by the embodiment, correspondingly, the application also provides an audio parameter adjusting device. Please refer to the following examples.
Fig. 5 is a schematic structural diagram of an audio parameter adjusting apparatus according to an embodiment of the present invention, as shown in fig. 5, the audio parameter adjusting apparatus may include: an acquisition module 501, a filtering module 502 and a parameter adjusting module 503.
Specifically, the obtaining module 501 is configured to obtain frequency domain data of audio in a preset period of time in audio being played.
The filtering module 502 is configured to filter the frequency domain data according to a first preset threshold, so as to obtain first frequency domain data; and filtering the first frequency domain data according to a second preset threshold to obtain second frequency domain data.
The parameter adjusting module 503 is configured to adjust audio parameters of the audio playing device according to the second frequency domain data and preset adjustment parameters.
In some embodiments, the preset adjustment parameters include preset bandwidth and gain parameters; the parameter adjusting module 330 is configured to obtain a bandwidth of the second frequency domain data; if the frequency bandwidth of the second frequency domain data is larger than the preset frequency bandwidth, the parameter adjusting module is further used for acquiring the frequency band where the second frequency domain data is located; and according to the gain parameter, the audio parameter of the frequency band where the second frequency domain data is located is regulated up.
In some embodiments, if the bandwidth of the second frequency domain data is less than or equal to the preset bandwidth, the parameter adjusting module 503 is further configured to obtain the frequency band in which the first frequency domain data is located; and according to the gain parameter, the audio parameter of the frequency band where the first frequency domain data is located is regulated.
In some embodiments, the first preset threshold is less than the second preset threshold.
In some embodiments, the obtaining module 501 is configured to obtain time domain data of audio within a preset time period in audio being played; and carrying out Fourier transform on the time domain data to obtain frequency domain data.
It can be understood that the audio parameter adjusting apparatus according to the embodiment of the present invention may correspond to an execution body of the audio parameter adjusting method according to the embodiment of the present invention, and specific details of operations and/or functions of each module/unit of the audio parameter adjusting apparatus may be referred to the description of the corresponding parts in the audio parameter adjusting method according to the embodiment of the present invention, which is not repeated herein for brevity.
According to the audio parameter adjusting device provided by the embodiment of the invention, the frequency domain data of the audio currently being played by the user is filtered twice by different preset thresholds, so that the filtered frequency domain data is obtained, and 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 by combining the gain parameters which accord with the preferences of the user, so that the audio parameters can be adjusted in real time according to the frequency characteristics of the current music, and the music currently being played is better in hearing and has the characteristics.
Fig. 6 is a schematic hardware structure of an audio parameter adjusting apparatus according to an embodiment of the present invention.
As shown in fig. 6, the audio parameter adjusting apparatus 600 in the present embodiment includes an input apparatus 601, an input interface 602, a central processor 603, a memory 604, an output interface 605, and an output apparatus 606. The input interface 602, the central processor 603, the memory 604, and the output interface 605 are connected to each other through a bus 610, and the input device 601 and the output device 606 are connected to the bus 610 through the input interface 602 and the output interface 605, respectively, and further connected to other components of the audio parameter adjusting device.
Specifically, the input device 601 receives input information from the outside and transmits the input information to the central processor 603 through the input interface 602; the central processor 603 processes the input information based on 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 adjusting device for use by the user.
That is, the audio parameter adjusting apparatus shown in fig. 6 may also be implemented to include: a memory storing computer-executable instructions; and a processor that, when executing computer-executable instructions, can implement the audio parameter adjustment method described in connection with the examples of this invention.
In one embodiment, the audio parameter adjusting apparatus shown in fig. 6 includes: a memory 604 for storing a program; the processor 603 is configured to execute a program stored in the memory to perform the audio parameter adjustment method provided by the embodiment of the present invention.
Embodiments of the present invention also provide a computer readable storage medium having computer program instructions stored thereon; the computer program instructions, when executed by a processor, implement the audio parameter adjustment method provided by the embodiment of the invention.
It should be understood that the invention is not limited to the particular arrangements and instrumentality described above and shown in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. The method processes of the present invention are not limited to the specific steps described and shown, but various changes, modifications and additions, or the order between steps may be made by those skilled in the art after appreciating the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented in hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic Circuit, application SPECIFIC INTEGRATED Circuit (ASIC), appropriate firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transfer information. Examples of machine-readable media include electronic circuitry, semiconductor Memory devices, read-Only Memory (ROM), flash Memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio Frequency (RF) links, and the like. The code segments may be downloaded via computer networks such as the internet, intranets, etc.
It should also be noted that the exemplary embodiments mentioned in this disclosure describe some methods or systems based on a series of steps or devices. The present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, or may be performed in a different order from the order in the embodiments, or several steps may be performed simultaneously.
In the foregoing, only the specific embodiments of the present invention are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present invention is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present invention, and they should be included in the scope of the present invention.
Claims (5)
1. A method for adjusting audio parameters, applied to an audio playing device, comprising:
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, wherein the first preset threshold is smaller than the second preset threshold;
Adjusting the audio parameters of the audio playing device according to the second frequency domain data and preset adjustment parameters, wherein the preset adjustment parameters comprise preset bandwidth and gain parameters;
the adjusting the audio parameters of the audio playing device according to the second frequency domain data and the preset adjustment parameters includes:
Acquiring the bandwidth of the second frequency domain data;
If the bandwidth of the second frequency domain data is larger than the preset bandwidth, acquiring a 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 heightened;
if the bandwidth of the second frequency domain data is smaller than or equal to the preset bandwidth, acquiring the frequency band of the first frequency domain data;
And according to the gain parameter, the audio parameter of the frequency band where the first frequency domain data is located is regulated.
2. The method of claim 1, wherein the acquiring frequency domain data of audio within a preset time period in the audio being played comprises:
Acquiring time domain data of the audio in a preset time period in the audio being played;
And carrying out Fourier transform on the time domain data to obtain the frequency domain data.
3. An apparatus for audio parameter adjustment, the apparatus comprising:
the acquisition module is used for acquiring frequency domain data of the audio in a preset time period in the audio being played;
The filtering module is used for 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, wherein the first preset threshold is smaller than the second preset threshold;
The parameter adjusting module is used for improving the audio parameters of the audio playing equipment according to the second frequency domain data and preset adjustment parameters, wherein the preset adjustment parameters comprise preset bandwidth and gain parameters;
The parameter adjusting module is further used for acquiring 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 adjusting module is further configured to obtain a 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 heightened;
If the bandwidth of the second frequency domain data is smaller than or equal to the preset bandwidth, the parameter adjusting module is further configured to obtain a frequency band where the first frequency domain data is located; and according to the gain parameter, the audio parameter of the frequency band where the first frequency domain data is located is regulated.
4. An audio parameter adjustment apparatus, the apparatus comprising: 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 of the claims 1-2.
5. A computer storage medium having stored thereon computer program instructions which, when executed by a processor, implement the audio parameter adjustment method according to any of claims 1-2.
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