Audio playback style adjustment method, device, electronic device and storage medium

Abstract

The present invention discloses an audio playback style adjustment method, device, electronic device and storage medium, wherein the method comprises: obtaining the frequency information of the audio by pre-decoding, and then classifying the frequency of the audio according to the specified frequency band, and then selecting a playback style according to the strength of the audio in each frequency band, and finally matching a preset equalization scheme according to the selected playback style, so that the audio can automatically match the equalizer when playing, and the configuration of the manual operation of the equalizer can be avoided, which effectively improves the user experience. Compared with the prior art, the beneficial effect is that the audio can automatically match the equalizer when playing, and the configuration of the manual operation of the equalizer can be avoided, which effectively improves the user experience.

Description

[Technical field]

[0001] The present application relates to the field of audio playback technology, and specifically to an audio playback style adjustment method, device, electronic device and storage medium. [Background technology]

[0002] At present, with the advancement of science and technology, electronic devices such as smart phones, laptops, tablets, car central control, smart TVs, smart speakers, smart wearables, etc. have developed rapidly. Such electronic devices usually have music playback functions, and generally play music through audio software. During the playback process, the audio software will not balance the playback style of the sound source. However, sound sources with different playback styles require corresponding equalizers to balance in order to obtain a good auditory experience. For this reason, in order to obtain a better auditory experience, users usually listen to a piece of music first and then judge the style of the music by themselves, and then manually set the equalizer. The operation is relatively complicated, and many users cannot judge the style of the music and cannot complete the equalizer setting, which affects the user experience. .

[0003] In view of this, it is necessary to provide an audio playback style adjustment method, device, electronic device and storage medium to overcome the above-mentioned defects. [Summary of the invention]

[0004] The purpose of the present application is to provide an audio playback style adjustment method, device, electronic device and storage medium, aiming to achieve automatic matching of playback styles and automatic equalization.

[0005] In order to achieve the above-mentioned purpose, the present application provides an audio playback style adjustment method, which is applied to an electronic device with an audio playback function, and the method includes:

[0006] Pre-decode the audio when playing it to obtain the frequency information of the audio;

[0007] Classify the audio frequency segments according to the acquired frequency information;

[0008] Determine the strength of the audio in each frequency band according to the frequency amplitude;

[0009] Determine the playback style of the audio according to the strength of the audio in each frequency band;

[0010] Match the audio with the corresponding equalization solution according to the determined playback style.

[0011] As an improvement to the audio playback style adjustment method of the present application, when playing audio, the method further includes:

[0012] Divide the frequency band within the human hearing range into several frequency bands;

[0013] Summarize the distribution of audio in several divided frequency bands and generate a frequency feature table.

[0014] As an improvement to the audio playback style adjustment method of the present application, generating a frequency feature table includes:

[0015] Check whether the frequency characteristic table has been generated;

[0016] If yes, match the audio with a corresponding equalization solution according to the generated frequency characteristic table;

[0017] If not, generate a frequency signature table.

[0018] As an improvement to the audio playback style adjustment method of the present application, judging the strength of the audio in each frequency band includes:

[0019] Set the amplitude threshold, set an amplitude threshold in each frequency band;

[0020] Determine the strength of the audio in each frequency band based on the amplitude threshold;

[0021] The judgment result of the strength of the audio in each frequency band is written into the frequency characteristic table.

[0022] As an improvement to the audio playback style adjustment method of the present application, the judgment results of the strength of the audio in each frequency band are recorded using numbers 1 and 0 to distinguish them.

[0023] As an improvement to the audio playback style adjustment method of the present application, determining the playback style for the audio includes:

[0024] Establishing a play style table, the play style table includes parameters of several play styles;

[0025] Select a playback style from the playback style table according to the strength of each frequency band in the frequency characteristic table;

[0026] The name identification of the selected playback style is written into the frequency characteristic table.

[0027] As an improvement to the audio playback style adjustment method of the present application, matching the equalization scheme includes:

[0028] Click to play the audio and then delay to start the automatic equalization mode;

[0029] After the automatic equalization mode is turned on, read the frequency characteristic table of the audio;

[0030] If the frequency characteristic table contains a name identifier of the playback style, then the audio is played after importing a corresponding equalization scheme according to the name identifier of the playback style;

[0031] If there is no name identification of the playback style in the frequency characteristic table, the audio is played directly.

[0032] The present application also provides an audio playback style adjustment device, which is applied to an electronic device with an audio playback function, and the device includes:

[0033] A decoding module, used for pre-decoding an audio file to obtain frequency information of the audio file;

[0034] A classification module, used to classify the frequency information obtained by the decoding module and generate a frequency feature table;

[0035] A style matching module, used to store the playing styles and select a playing style according to the frequency feature table, and write the name identifier of the playing style into the frequency feature table after selecting a playing style;

[0036] An automatic equalization module, used for storing equalization schemes and importing corresponding equalization schemes according to the name identifiers in the frequency characteristic table to adjust the sound amplitude;

[0037] The equalization start module is used to start the equalization module. Click to start the automatic equalization module after playing the audio for a specified time.

[0038] The present application also provides an electronic device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, and the computer program implements the steps of the above-mentioned audio playback style adjustment method when executed by the processor.

[0039] The present application also provides a storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned audio playback style adjustment method are implemented.

[0040] Compared with the prior art, this application has the following advantages:

[0041] The embodiments of the present application obtain the frequency information of the audio through pre-decoding, and then classify the frequency of the audio according to the specified frequency band, and then select a playback style according to the strength of the audio in each frequency band, and finally match a preset equalization scheme according to the selected playback style, so that the audio can automatically match the equalizer when playing, which can avoid manual operation of the equalizer configuration, and effectively improve the user experience.

[0042] In order to make the above-mentioned objects, features and advantages of the invention more obvious and easy to understand, the preferred embodiments of the present invention are specifically cited below and described in detail with reference to the attached drawings.

Brief Description of the Drawings

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 A flowchart of the steps of the audio playback style adjustment method is provided for this application.

[0045] Figure 2 for Figure 1 A flowchart of the steps of the matching equalization scheme is shown.

[0046] Figure 3 for Figure 1 A flow chart of the steps for determining the audio playback style is shown.

[0047] Figure 4 A structural block diagram of an audio playback style adjustment device is provided for this application. [Specific implementation method]

[0048] In order to make the purpose, technical solution and beneficial technical effect of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the present invention, not for limiting the present invention.

[0049] Reference Figure 1 , Figure 1 The flowchart of the steps of the first embodiment of the method for adjusting the audio playback style provided by the present application is shown. The method is applied to an electronic device with an audio playback function to enable the electronic device to automatically match the audio playback style when playing audio. The electronic device may include a smart phone, a laptop computer, a tablet computer, a car central control, a smart TV, a smart speaker, a smart wearable, etc. The method may specifically include the following steps:

[0050] Step 101, pre-decode the audio when playing it to obtain the frequency information of the audio.

[0051] In this embodiment, audio decoding can be completed by a processor on the electronic device, and the decoded audio file is converted into an analog signal or a digital signal that can be output, and the frequency information of the audio is obtained by sampling and analyzing the analog signal or the digital signal.

[0052] Step 102: classify the audio into frequency segments according to the acquired frequency information.

[0053] Each frequency of sound has corresponding auditory characteristics, so different sounds can be identified by the size of the frequency. For example, the difference between female and male voices, between musical instruments and human voices, and between different musical instruments can all be distinguished by the difference in frequency.

[0054] In one embodiment of the present application, the frequencies within the human hearing range can be divided into several frequency bands, and then the distribution of the audio in each frequency band can be summarized and a frequency feature table can be established. The purpose of classifying the audio into frequency bands can be achieved through the frequency feature table.

[0055] Specifically, according to different auditory characteristics, ten frequency bands with different auditory characteristics can be divided in the frequency band within the human hearing range. The sound in each frequency band has a unique auditory characteristic, as follows:

[0056] Frequency band one, the frequency range is 20Hz-60Hz, which is the same as the resonant frequency of the room or hall, so the sound in this frequency band can affect the spatial sense of the timbre.

[0057] Frequency band two, the frequency range is 60Hz-100Hz. The sound in this frequency band is the fundamental tone area of ​​the bass, which affects the thickness of the sound, making the timbre appear thicker and the thickness stronger, such as the sound produced by instruments such as bass drum, timpani, piano, cello, and tuba.

[0058] Frequency band three, the frequency range is 150Hz-300Hz. The sound in this frequency band is the low-frequency fundamental frequency of male voice, and it is also the root frequency of chords in music. Therefore, the sound in this frequency band affects the strength of the sound, especially the strength of male voice.

[0059] Frequency band four, the frequency range is 300Hz-500Hz. The sound within this frequency band affects the thickness and strength of the timbre, mainly affecting the thickness and strength of the human voice (singing, reciting).

[0060] Frequency band five, the frequency range is 500Hz-2kHz. The sound within this frequency band affects the intensity of the timbre, making it stronger and more powerful, such as the sound of human voice or some percussion instruments.

[0061] Frequency band six, the frequency range is 2kHz-4kHz. The sounds in this frequency band affect the brightness and penetration of the sound and can increase the layering of the music, such as some female voices and the sounds of most wind instruments.

[0062] Frequency band seven, the frequency range is 4kHz-8kHz. The sound in this frequency band affects the clarity and brightness of speech. For example, it can increase the clarity and brightness of some female voices and most wind instruments.

[0063] Frequency band eight, the frequency range is 8kHz-12kHz. The sounds within this frequency band are the high-pitched area of ​​music, such as the sounds of wind instruments such as flute, oboe, trumpet, and piccolo.

[0064] Frequency band nine, the frequency range is 12kHz-16kHz. The sounds in this frequency band affect the overall sense of color, such as the high-frequency overtones emitted by percussion instruments such as rubbing, bells, tambourines, maracas, copper brushes, triangles, etc.

[0065] Frequency band ten, the frequency range is 16kHz-20kHz. The sounds in this frequency band affect the brightness of the audio and the overall sense of space, such as the overtones produced by electronic chorus, guzheng, piano and other instruments.

[0066] It should be understood that each audio should correspond to a frequency feature table. After the frequency feature table is generated, it can be associated and saved with the corresponding audio file. In this way, the frequency feature table can be generated when the audio is played for the first time, and the corresponding frequency feature table can be directly called when it is played repeatedly. Therefore, when the audio is classified into frequency segments, the following steps are also included:

[0067] Check whether to generate a frequency characteristic table;

[0068] If so, call the generated frequency characteristic table;

[0069] If not, generate a frequency characteristic table according to the above method.

[0070] Step 103: determine the strength of the audio in each frequency band according to the frequency amplitude.

[0071] The amplitude of the frequency is reflected in the auditory perception as the strength of the sound. If the sound is stronger, its corresponding auditory characteristics will be more prominent. Conversely, if the sound is weaker, its corresponding auditory characteristics will be weakened.

[0072] In one embodiment of the present application, the strength of the audio in each frequency band can be determined by setting an amplitude threshold, which may include

[0073] Set the amplitude threshold, set an amplitude threshold in each frequency band;

[0074] Determine the strength of the audio in each frequency band based on the amplitude threshold;

[0075] The judgment result of the strength of the audio in each frequency band is written into the frequency characteristic table.

[0076] It should be understood that the amplitude threshold can be automatically written into the frequency characteristic table when the frequency characteristic table is generated. In this way, after the frequency characteristic table is generated, the strength of the audio in each frequency band can be obtained by comparing it with the amplitude threshold. Then, the judgment result of the strength of the audio in each frequency band is written into the frequency characteristic table to complete the judgment of the strength of the audio in each frequency band.

[0077] Furthermore, the strength of the audio in each frequency band can be recorded using the numbers 1 and 0 respectively. In this way, the judgment structure of the strength of the audio in each frequency band in the frequency characteristic table can be identified by a digital string consisting of the numbers 1 and 0, which is convenient for identification and storage.

[0078] For example, when the frequency amplitude of an audio in frequency band two, frequency band three, frequency band nine and frequency band ten exceeds the corresponding amplitude threshold, and the frequency amplitude in other frequency bands is less than the corresponding amplitude threshold, the strength judgment result of the audio in each frequency band can be identified by the digital string 0110000011 and written into the corresponding frequency characteristic table.

[0079] Step 104: determine a playback style for the audio according to the strength of the audio in each frequency band.

[0080] The playback style is used to limit the strength of the audio in each frequency band, so that the audio can better reflect its style and characteristics when it is played, so as to achieve the purpose of enhancing the user's listening experience. In this way, if the strength of the audio in each frequency band is the same as or similar to the strength of the audio in each frequency band specified by a playback style, the audio can be determined to have this playback style.

[0081] Reference Figure 2 In one embodiment of the present application, after obtaining the strong and weak performance results of the audio in each frequency band, the audio playback style can be determined by the playback style table, which specifically includes:

[0082] Step 201, establish a play style table, the play style table includes several play style parameters. It should be understood that the play style table can be stored in the electronic device in a preset manner, and the user can also edit the play style parameters in the play style table according to needs.

[0083] Step 202: Select a play style from the play style table according to the strength of each frequency segment in the frequency characteristic table.

[0084] Step 203: Write the name identifier of the selected playing style into the frequency feature table.

[0085] For example, the playback style table may include eight playback styles, namely, electronic music, opera, classical, nostalgia, metal rock, jazz, pop and dance music. Taking electronic music as an example, its strength performance in the above ten frequency bands is set to 0110000011, where 0 is weak performance and 1 is strong performance. If the strength judgment result of the audio in the above ten frequency bands is also 0110000011, then the audio can be determined as the playback style of electronic music.

[0086] Step 105: Match the audio with a corresponding equalization solution according to the determined playing style.

[0087] The equalization scheme enhances or weakens the sound amplitude in each frequency band by setting the gain parameters of the audio in each frequency band, so as to compensate for the frequency loss caused by the sound field or the speaker, or to obtain the sound effect of the selected playback style. The equalization scheme can be stored in the electronic device in a preset manner, and multiple equalization schemes can be preset in the electronic device, and each equalization scheme corresponds to a playback style.

[0088] In this embodiment, the parameters in the equalization scheme can be set between -12db and +12db. For example, the gain parameters of the equalization scheme for electronic music in each frequency band can be set to: -6db, +1db, +4db, -2db, -2db, -4db, 0db, 0db, +6db, +6db respectively.

[0089] It can be understood that the frequency bands that require strong expression of electronic music will be further increased after equalization, and conversely, the frequency bands that require weak expression of electronic music will be further weakened or remain unchanged after equalization, thereby highlighting the style characteristics of electronic music.

[0090] Further, see Figure 3 In one embodiment of the present application, the equalization scheme is matched according to the following steps:

[0091] Step 301, after clicking to play the audio, the automatic equalization mode is turned on with a delay;

[0092] Step 302, after the automatic equalization mode is turned on, read the frequency characteristic table of the audio;

[0093] Step 303, if the frequency characteristic table contains a name identifier of the playing style, then the audio is played after importing a corresponding equalization scheme according to the name identifier of the playing style;

[0094] Step 304: If there is no name identification of the playing style in the frequency characteristic table, the audio is played directly.

[0095] The embodiments of the present application obtain the frequency information of the audio through pre-decoding, and then classify the frequency of the audio according to the specified frequency band, and then select a playback style according to the strength of the audio in each frequency band, and finally match a preset equalization scheme according to the selected playback style, so that the audio can automatically match the equalizer when playing, which can avoid manual operation of the equalizer configuration, and effectively improve the user experience.

[0096] It should be noted that, for the method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present application are not limited by the described order of actions, because according to the embodiments of the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present application.

[0097] Reference Figure 4 , shows a structural block diagram of an audio playback style adjustment device provided by an embodiment of the present application, the device is applied to an electronic device with an audio playback function, and the device may specifically include:

[0098] The decoding module 401 is used to pre-decode the audio file to obtain the frequency information of the audio file;

[0099] The classification module 402 is used to classify the frequency information obtained from the decoding module 401 and generate a frequency feature table;

[0100] The style matching module 403 is used to store the playing styles and select a playing style according to the frequency feature table, and write the name identifier of the playing style into the frequency feature table after selecting a playing style;

[0101] Automatic equalization module 404, used to store equalization schemes and import corresponding equalization schemes according to the name identifiers in the frequency characteristic table to adjust the sound amplitude;

[0102] The equalization start module 405 is used to start the equalization module 304, and the automatic equalization module 404 is started after clicking to play the audio for a specified time.

[0103] An embodiment of the present application also provides an electronic device, which may include a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, the steps of the above audio playback style adjustment method are implemented.

[0104] An embodiment of the present application further provides a storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above audio playback style adjustment method are implemented.

[0105] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0106] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, devices, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0107] The embodiments of the present application are described with reference to the flowcharts and / or block diagrams of the methods, electronic devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing electronic device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing electronic device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0108] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing electronic device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0109] These computer program instructions can also be loaded onto a computer or other programmable data processing electronic device so that a series of operating steps are executed on the computer or other programmable electronic device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable electronic device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0110] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present application.

[0111] Finally, 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", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or electronic 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 electronic device. In the absence of further restrictions, the elements defined by the sentence "comprises one..." do not exclude the presence of other identical elements in the process, method, article or electronic device including the elements.

[0112] The above is a detailed introduction to an audio playback style adjustment method and device, electronic device, and storage medium provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for adjusting audio playback style, characterized in that: Applied to an electronic device with an audio playback function, the method comprises: Pre-decode the audio when playing it to obtain the frequency information of the audio; Classify the audio frequency segments according to the acquired frequency information; Determine the strength of the audio in each frequency band according to the frequency amplitude; Determine the playback style of the audio according to the strength of the audio in each frequency band; Match the audio with the corresponding equalization solution according to the determined playback style; When playing audio, also include: Divide the frequency band within the human hearing range into several frequency bands; Summarize the distribution of audio in the divided frequency bands and generate a frequency characteristic table; Judging the strength of audio in each frequency band includes: Set the amplitude threshold, set an amplitude threshold in each frequency band; Determine the strength of the audio in each frequency band based on the amplitude threshold; Write the judgment result of the strength of the audio in each frequency band into the frequency characteristic table; When determining the playback style for audio, include: Establishing a play style table, the play style table includes parameters of several play styles; Select a playback style from the playback style table according to the strength of each frequency band in the frequency characteristic table; The name identification of the selected playback style is written into the frequency characteristic table.

2. The method for adjusting the audio playback style according to claim 1, characterized in that: When generating a frequency characteristic table, include: Check whether the frequency characteristic table has been generated; If yes, match the audio with a corresponding equalization solution according to the generated frequency characteristic table; If not, generate a frequency signature table.

3. The method for adjusting the audio playback style according to claim 1, characterized in that: The judgment results of the strength of the audio in each frequency band are recorded using the numbers 1 and 0 to distinguish them.

4. The method for adjusting the audio playback style according to claim 1, characterized in that: Matching the balancing solution includes: Click to play the audio and then delay to start the automatic equalization mode; After the automatic equalization mode is turned on, read the frequency characteristic table of the audio; If the frequency characteristic table contains a name identifier of the playback style, then the audio is played after importing a corresponding equalization scheme according to the name identifier of the playback style; If there is no name identification of the playback style in the frequency characteristic table, the audio is played directly.

5. An audio playback style adjustment device, characterized in that: The method for adjusting the audio playback style according to any one of claims 1 to 4 is applied to an electronic device with an audio playback function, the device comprising: A decoding module, used for pre-decoding an audio file to obtain frequency information of the audio file; A classification module, used to classify the frequency information obtained from the decoding module and generate a frequency feature table; A style matching module, used to store the playing styles and select a playing style according to the frequency feature table, and write the name identifier of the playing style into the frequency feature table after selecting a playing style; An automatic equalization module, used for storing equalization schemes and importing corresponding equalization schemes according to the name identifiers in the frequency characteristic table to adjust the sound amplitude; The equalization start module is used to start the equalization module. Click to start the automatic equalization module after playing the audio for a specified time.

6. An electronic device, characterized in that: The method comprises a processor, a memory and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the audio playback style adjustment method as claimed in any one of claims 1 to 4 are implemented.

7. A storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the audio playback style adjustment method as described in any one of claims 1 to 4 are implemented.

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