CN111641863A - Method, system and device for playing control of surround sound and storage medium - Google Patents

Method, system and device for playing control of surround sound and storage medium Download PDF

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Publication number
CN111641863A
CN111641863A CN201910155870.9A CN201910155870A CN111641863A CN 111641863 A CN111641863 A CN 111641863A CN 201910155870 A CN201910155870 A CN 201910155870A CN 111641863 A CN111641863 A CN 111641863A
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China
Prior art keywords
scene mode
surround sound
component difference
average value
scene
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CN201910155870.9A
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Chinese (zh)
Inventor
戚炎兴
朱海明
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Shenzhen TCL New Technology Co Ltd
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Shenzhen TCL New Technology Co Ltd
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Priority to CN201910155870.9A priority Critical patent/CN111641863A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439Processing of audio elementary streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/485End-user interface for client configuration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/602Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for digital sound signals

Abstract

The invention provides a playing control method, a system, a device and a storage medium of surround sound, which are characterized in that left and right channel audio signals of a playing video are obtained, and the component difference value of the left and right channel audio signals is calculated; calculating an average value of the component difference values in a preset time period according to a plurality of component difference values calculated in the preset time period; judging the scene mode of the playing video according to the average value of the component difference values; and if the judged scene mode is the film scene mode, controlling to start the surround sound of the currently played video, otherwise, controlling to stop the surround sound of the currently played video. The method and the system provided by the invention realize automatic identification of the sound scene of the played video, and automatically adjust the surround sound effect function according to the identified scene mode, so that the sound effect of the played video is intelligently matched with the sound scene, the intelligence of the played video of the electronic device is improved, and convenience is provided for users to watch the video.

Description

Method, system and device for playing control of surround sound and storage medium
Technical Field
The present invention relates to the field of acoustic and embedded software technologies, and in particular, to a method, a system, an apparatus, and a storage medium for controlling playback of surround sound.
Background
The sound effect of the current television is provided with a plurality of choices for users, wherein when the virtual surround sound effect function setting is opened, the sound of partial program sources can have a realistic feeling, and the audio-visual feeling is improved. However, the virtual surround sound effect is not applicable to all program sources, and sometimes affects the program sound effect. The scenes of a television program can be roughly divided into: language class (e.g., news) focusing on speech intelligibility; music, which focuses on sound fidelity; the movies pay attention to the restoration of movie scenes and the prominent expression of various special effect sounds. There are also television shows, which are closer to the language class. In the above several scenes, only the movie-like programs are suitable for opening the virtual surround sound effect, otherwise, the original sound effect is greatly affected, such as: in the scenes, the voice of the language program is not clear enough, the voice cavity feeling of the music program is generated, and the like, and the virtual surround sound effect should be closed or the intensity should be reduced. The current television system does not have the automatic adjustment function, and the surround sound effect needs a user to set the switch and the intensity, so that the requirement of the user on the intellectualization of the electronic device cannot be met.
Therefore, the prior art is subject to further improvement.
Disclosure of Invention
In view of the foregoing disadvantages in the prior art, an object of the present invention is to provide a method, a system, a device and a storage medium for controlling playback of surround sound, which are used to overcome the drawback of the prior art that the surround sound effect needs to be manually adjusted.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a first embodiment provided by the present invention is a method for controlling playback of surround sound, including:
acquiring left and right channel audio signals of a currently played video, and calculating a component difference value of the left and right channel audio signals;
obtaining a plurality of component difference values in a preset time period, and calculating the average value of the component difference values in the preset time period;
and determining a scene mode to which the playing video belongs according to the average value of the component difference values, and controlling the surround sound of the currently playing video according to the scene mode.
Optionally, the step of controlling the surround sound of the currently played video according to the scene mode includes:
and if the judged scene mode is the film scene mode, controlling to start the surround sound of the currently played video, otherwise, controlling to stop the surround sound of the currently played video.
Optionally, the step of controlling the surround sound of the currently played video according to the scene mode includes:
if the determined scene mode is a music type scene mode, determining whether the scene modes of a plurality of playing videos played in the next preset time period include a movie type scene mode or not;
if yes, judging that the current scene mode belongs to is a movie scene mode, and otherwise, judging that the current scene mode belongs to is a music scene mode.
Optionally, the step of calculating an average value of the component difference values in a preset time period according to the plurality of component difference values calculated in the preset time period further includes:
storing the component difference value calculated in a preset time period into a buffer memory;
summing the absolute values of the plurality of component differences stored in the buffer memory, and calculating an average value.
Optionally, the step of determining the scene mode to which the played video belongs according to the average value of the component difference values includes:
comparing the average value with a first preset threshold, a second preset threshold and a third preset threshold respectively;
if the average value is lower than a first preset threshold value, judging that the scene mode to which the playing video belongs is a language scene mode;
if the average value is higher than a first preset threshold and lower than a second preset threshold, judging that the scene mode to which the playing video belongs is a television series scene mode;
if the average value is higher than a second preset threshold and lower than a third preset threshold, judging that the scene mode to which the playing video belongs is a movie-like scene mode;
and if the average value is higher than a third preset threshold value, judging that the scene mode to which the playing video belongs is a music scene mode.
Optionally, the first preset threshold, the second preset threshold, and the third preset threshold respectively correspond to a maximum value of an average amplitude of the language type scene mode, a maximum value of an average amplitude of the television type scene mode, and a maximum value of an average amplitude of the movie type scene mode.
Optionally, the step of obtaining the left and right channel audio signals of the currently played video and calculating the component difference value of the left and right channel audio signals further includes:
converting the acquired audio signals of the left and right sound channels into digital signals from analog signals;
and calculating the component difference value of the audio signals of the left and right channels according to the converted digital signals.
A second embodiment of the present invention is a system for controlling playback of surround sound, including:
the difference value calculation module is used for acquiring the left and right channel audio signals of the currently played video and calculating the component difference value of the left and right channel audio signals;
the average value calculation module is used for acquiring a plurality of component difference values in a preset time period and calculating the average value of the plurality of component difference values in the preset time period;
and the sound effect control module is used for determining a scene mode to which the playing video belongs according to the average value of the component difference values and controlling the surround sound of the currently played video according to the scene mode.
A third embodiment of the present invention is an electronic device, including: a processor, a memory, and a playback control program for surround sound stored on the memory and executable on the processor, wherein the playback control program for surround sound, when executed by the processor, implements the steps of:
acquiring left and right channel audio signals of a currently played video, and calculating a component difference value of the left and right channel audio signals;
obtaining a plurality of component difference values in a preset time period, and calculating the average value of the component difference values in the preset time period;
and determining a scene mode to which the playing video belongs according to the average value of the component difference values, and controlling the surround sound of the currently playing video according to the scene mode.
A fourth embodiment of the disclosure is a computer-readable storage medium, wherein the computer-readable storage medium stores the playback control program of the surround sound, and when the playback control program of the surround sound is executed by a processor, the steps of the playback control method of the surround sound are implemented.
The invention has the beneficial effects that the invention provides a playing control method, a system, a device and a storage medium of surround sound, which can calculate the component difference value of the left and right sound channel audio signals by acquiring the left and right sound channel audio signals of the playing video; calculating an average value of the component difference values in a preset time period according to a plurality of component difference values calculated in the preset time period; judging the scene mode of the playing video according to the average value of the component difference values; and if the judged scene mode is the film scene mode, controlling to start the surround sound of the currently played video, otherwise, controlling to stop the surround sound of the currently played video. The method and the system provided by the invention realize automatic identification of the sound scene of the played video, and automatically adjust the surround sound effect function according to the identified scene mode, so that the sound effect of the played video is intelligently matched with the sound scene, the intelligence of the played video of the electronic device is improved, and convenience is provided for users to watch the video.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for controlling playback of surround sound according to the present invention;
FIG. 2 is a schematic diagram of audio signal processing in the apparatus of the method of the present invention;
FIG. 3 is a schematic diagram illustrating a scene mode determination in an embodiment of the method of the present invention;
FIG. 4 is a diagram illustrating threshold determination in an embodiment of the method of the present invention;
FIG. 5 is a schematic diagram of scene mode switching in the method provided by the present invention;
fig. 6 is a block diagram illustrating the schematic structure of the system for controlling playback of surround sound according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A first embodiment of the present invention is a method for controlling playback of surround sound, as shown in fig. 1, including:
step S1, obtaining the left and right channel audio signals of the currently played video, and calculating the component difference between the left and right channel audio signals.
When the electronic device plays video, audio signals of a left channel and an audio signal of a right channel are obtained. The electronic device can be an intelligent television, a tablet computer or a mobile phone and the like, has a video playing function, and also has a function of calculating the component difference of the acquired audio signal.
The component difference value of the left and right channel audio signals comprises: information parameters related to the channel audio signal components, such as timbre, signal frequency, signal amplitude, sampling rate, bit rate, coding mode, presence or absence of a low frequency enhancement channel, and reverberation mode.
It is conceivable that, because the acquired left and right channel audio signals are analog signals, the acquired left and right channel audio signals need to be converted from analog signals to digital signals before component difference calculation; and then calculating the component difference value according to the converted digital signal.
Step S2, obtaining a plurality of component difference values in a preset time period, and calculating an average value of the plurality of component difference values in the preset time period.
In the step S1, the component difference values of the audio signals at a certain time may be obtained, and in this step, the component difference values of a plurality of audio signals within a preset time period may be obtained, and an average value of the component difference values is calculated, and the average value is used as a parameter for determining the scene mode.
Specifically, in order to calculate the average value of the component differences, the method further includes:
storing the component difference value calculated in a preset time period into a buffer memory;
summing the absolute values of the plurality of component differences stored in the buffer memory, and calculating an average value.
In order to calculate the average value of the component differences within the preset time period, the obtained multiple component differences need to be stored in a memory, when the multiple component differences within the preset time period are all obtained, the average value is calculated, and when the multiple component differences are calculated, since a negative number occurs when the component differences of the two channels are calculated, when the average value is calculated, the absolute value of the component differences needs to be obtained, the absolute value of the component differences is summed, and then the average value is calculated.
And step S3, determining the scene mode of the playing video according to the average value of the component difference values and controlling the surround sound of the currently playing video according to the scene mode.
And identifying the scene mode to which the currently played video belongs based on the average value calculated in the step, and performing on-off control of surround sound according to the identified scene mode.
Specifically, the step of determining the scene mode to which the played video belongs according to the average value of the component difference values includes:
comparing the average value with a first preset threshold, a second preset threshold and a third preset threshold respectively;
if the average value is lower than a first preset threshold value, judging that the scene mode to which the playing video belongs is a language scene mode;
if the average value is higher than a first preset threshold and lower than a second preset threshold, judging that the scene mode to which the playing video belongs is a television series scene mode;
if the average value is higher than a second preset threshold and lower than a third preset threshold, judging that the scene mode to which the playing video belongs is a movie-like scene mode;
and if the average value is higher than a third preset threshold value, judging that the scene mode to which the playing video belongs is a music scene mode.
The first preset threshold, the second preset threshold and the third preset threshold respectively correspond to the maximum value of the average amplitude of the language type scene mode, the maximum value of the average amplitude of the television type scene mode and the maximum value of the average amplitude of the movie type scene mode.
The first preset threshold, the second preset threshold, and the third preset threshold are respectively set based on the average values of the left and right channel component differences corresponding to different scene modes, so that the scene mode of the currently played video is identified by comparing the average value calculated in step S3 with the preset threshold.
The step of controlling the surround sound of the currently played video according to the scene mode includes:
and if the judged scene mode is the film scene mode, controlling to start the surround sound of the currently played video, otherwise, controlling to stop the surround sound of the currently played video.
The sound scene category of television programs can be roughly divided into two broad categories, speech and music rich. The speech rich classes may include: news, television shows, etc. And music rich categories may include: music, movies, etc. To distinguish these broad categories, it can be judged according to the intensity of the difference component of the two channels of the program sound. The voice rich program is mainly based on human voice, and the difference value of two sound channels in a certain time is smaller. The music is rich, the background has more score, and the difference between the left and right sound track is larger. And counting the intensity of the difference components of the two sound channels within a certain time, and judging which mode the current sound scene belongs to when the intensity exceeds the threshold values set by the two categories. Since the surround sound effect needs to be controlled to be turned on only when the played scene mode is the film-like scene mode, when the currently played scene mode is determined to be the film-like scene mode in the above steps, the surround sound is controlled to be turned on, and if the currently played scene mode is the other mode, for example: the language class scene mode or the music class scene mode controls to turn off the surround sound.
Because the film type scene mode and the music type scene mode have certain similarity, and the film type scene mode may contain a plurality of pieces of music scenes, when it is detected that the scene mode is the music type scene mode, the scene mode needs to be repeatedly judged to determine whether the current scene mode judgment is wrong, and if the judged scene mode is the music type scene mode, the method further includes:
judging whether the scene modes of the played video in the preset time period of the next preset number contain film scene modes or not;
if yes, judging that the current scene mode belongs to is a movie scene mode, and otherwise, judging that the current scene mode belongs to is a music scene mode.
The scene modes of the played video in the next preset number of preset time periods are judged, so that misjudgment of the scene modes caused by only one-time judgment is avoided, and the accuracy of scene mode identification is improved.
The preset number is a natural number greater than 2, preferably, the preset number ranges from 3 to 5, and the preset time is preferably within 5 minutes, and since the time of a piece of music is generally about 4 minutes, if the music is in a movie scene mode, the music is generally played after 5 minutes, and if the music is repeatedly judged, errors are not easy to occur.
The method provided by the invention is described in more detail below by taking the method provided by the invention as an example for application to an intelligent television.
As shown in fig. 2, the scene mode recognition implemented by the present invention is performed at the back end of the sound processing flow of the television system, and the sounds from various sources are processed at the front end, and after receiving the audio signals from the left and right channels, the audio signals are converted into uniform digital audio signals, and after performing the scene mode recognition by the method for controlling the playback of surround sound provided by the present invention, recognition results are obtained, and then the switching and control intensity of the surround sound function are set according to the recognition results.
Specifically, as shown in fig. 3, in a specific embodiment, after the audio signals of the left and right channels enter the scene recognition process, the difference between the two channels is calculated, then the difference is stored in a memory buffer with a length of t, and then the absolute values of the data in the buffer are summed and averaged to obtain a parameter reflecting the difference between the two channels. And the parameters are transmitted to a scene judgment process, and a sound scene mode is finally output according to comparison of the threshold values set by each sound scene.
As shown in fig. 4, assuming that the threshold values of scene modes 1 to n are arranged from small to large and are respectively identified as f1, f2, fn, etc., and the average value of the difference signal is m, when m > f2 and m < f3, the result of the scene mode recognition output is 000 … 011, and the subsequent flow makes a scene determination for the sound scene according to the result. Preferably, the following scene mode determination methods are selected in this embodiment:
mode output result Mode output Scene determination Remarks for note
m<f1 0000 Languages such as: news
m>f1 and m<f2 0001 Television drama class
m>f2 and m<f3 0011 Movies or the like Part of the scene is close to music
m>f3 0111 Music class
When the scene mode is judged by taking the component difference value of the left channel and the right channel as a condition, the situation of false recognition may occur sometimes, and an auxiliary condition needs to be added to reduce the probability. Taking a movie and a music scene as an example, when the background music component in the movie scene is large, the background music component is recognized as the music scene. However, such background sound is generally not maintained for a long time, and can be improved by a method of multiple judgments. Such as: when the music scene is played to a scene rich in background music currently in a movie scene, the average difference value of the left and right sound channels falls into the interval of the music scene, at this time, the surround sound scene is not switched, but is sampled through a plurality of judgment periods, and if the average difference value is still in the music scene, the surround sound scene is switched. Similarly, switching between other scenes requires multiple judgments.
As shown in fig. 5, the movie category, the music category, the tv series category and the language category can be switched, so to avoid the recognition error, preferably, other scene patterns can be recognized several times to confirm the correct scene pattern recognition. As can be seen from the relationship diagram of the switching of the surround sound scenes shown in fig. 5, the scenes are switched with each other according to the program played by the television. In each scene, the surround sound processing method is as follows:
scene Surround sound processing
Languages such as: news Closing device
Television drama class Closing device
Movies or the like Opening device
Music class Closing device
The method provided by the invention realizes the function of automatically switching the surround sound effect of the television along with the sound scene by the method for automatically identifying the sound scene of the television program, and the identification of the sound scene can provide reference for other functions on the television.
Example 2
A second embodiment of the present invention is a system for controlling playback of surround sound, as shown in fig. 6, including:
a difference calculation module 610, configured to obtain left and right channel audio signals of a currently played video, and calculate a component difference between the left and right channel audio signals; the function of which is as described in step S1.
An average value calculating module 620, configured to obtain a plurality of component difference values in a preset time period, and calculate an average value of the plurality of component difference values in the preset time period; the function of which is as described in step S2.
The sound effect control module 630 is configured to determine a scene mode to which the played video belongs according to the average value of the component difference values, and control surround sound of the currently played video according to the scene mode; the function of which is as described in step S3.
Example 3
A third embodiment of the present invention is an electronic device, including: a processor, a memory and a control program for surround sound stored on the memory and operable on the processor, wherein the playback control program for surround sound, when executed by the processor, implements the steps of:
acquiring left and right channel audio signals of a currently played video, and calculating a component difference value of the left and right channel audio signals;
obtaining a plurality of component difference values in a preset time period, and calculating the average value of the component difference values in the preset time period;
and determining a scene mode to which the playing video belongs according to the average value of the component difference values, and controlling the surround sound of the currently playing video according to the scene mode.
Example 4
A fourth embodiment of the present invention is a computer-readable storage medium, wherein the computer-readable storage medium stores the playback control program for surround sound, and the playback control program for surround sound, when executed by a processor, implements the steps of the playback control method for surround sound as described above.
The storage medium is a computer-readable storage medium, and can be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the playback control method of surround sound in the embodiment of the present invention. The processor executes various functional applications and data processing of the electronic device by running the software programs, instructions and modules stored in the memory, namely, the sound effect mode switching method is realized. The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system and an application program required by at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory may further include memory located remotely from the processor, which may be connected to the electronic device/storage medium via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The invention provides a playing control method, a system, a device and a storage medium of surround sound, which are characterized in that left and right channel audio signals of a playing video are obtained, and the component difference value of the left and right channel audio signals is calculated; calculating an average value of the component difference values in a preset time period according to a plurality of component difference values calculated in the preset time period; and determining a scene mode to which the playing video belongs according to the average value of the component difference values, and controlling the surround sound of the currently playing video according to the scene mode. The method and the system provided by the invention realize the automatic identification of the sound scene of the played video and automatically adjust the function of the surround sound effect according to the scene mode. The sound effect of the television program is matched with the sound scene, and the audio-visual experience of the user is improved.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.

Claims (10)

1. A method for controlling playback of surround sound, comprising:
acquiring left and right channel audio signals of a currently played video, and calculating a component difference value of the left and right channel audio signals;
obtaining a plurality of component difference values in a preset time period, and calculating the average value of the component difference values in the preset time period;
and determining a scene mode to which the playing video belongs according to the average value of the component difference values, and controlling the surround sound of the currently playing video according to the scene mode.
2. The method for controlling playback of surround sound according to claim 1, wherein the step of controlling the surround sound of the currently played video according to the scene mode includes:
and if the judged scene mode is the film scene mode, controlling to start the surround sound of the currently played video, otherwise, controlling to stop the surround sound of the currently played video.
3. The method for controlling playback of surround sound according to claim 1, wherein the step of controlling the surround sound of the currently played video according to the scene mode includes:
if the determined scene mode is a music type scene mode, determining whether the scene modes of a plurality of playing videos played in the next preset time period include a movie type scene mode or not;
if yes, judging that the current scene mode belongs to is a movie scene mode, and otherwise, judging that the current scene mode belongs to is a music scene mode.
4. The method of claim 1, wherein the step of calculating an average value of the component differences within a preset time period according to the component differences within the preset time period further comprises:
storing the component difference value calculated in a preset time period into a buffer memory;
summing the absolute values of the plurality of component differences stored in the buffer memory, and calculating an average value.
5. The method for controlling playback of surround sound according to claim 1, wherein the step of determining the scene mode to which the playback video belongs according to the average value of the component difference values comprises:
comparing the average value with a first preset threshold, a second preset threshold and a third preset threshold respectively;
if the average value is lower than a first preset threshold value, judging that the scene mode to which the playing video belongs is a language scene mode;
if the average value is higher than a first preset threshold and lower than a second preset threshold, judging that the scene mode to which the playing video belongs is a television series scene mode;
if the average value is higher than a second preset threshold and lower than a third preset threshold, judging that the scene mode to which the playing video belongs is a movie-like scene mode;
and if the average value is higher than a third preset threshold value, judging that the scene mode to which the playing video belongs is a music scene mode.
6. The method for controlling playback of surround sound according to claim 5, wherein the first preset threshold, the second preset threshold, and the third preset threshold correspond to a maximum value of an average amplitude of a language-class scene mode, a maximum value of an average amplitude of a television-class scene mode, and a maximum value of an average amplitude of a movie-class scene mode, respectively.
7. The method of claim 1, wherein the step of obtaining the audio signals of the left and right channels of the currently played video and calculating the component difference between the audio signals of the left and right channels further comprises:
converting the acquired audio signals of the left and right sound channels into digital signals from analog signals;
and calculating the component difference value of the audio signals of the left and right channels according to the converted digital signals.
8. A playback control system for surround sound, comprising:
the difference value calculation module is used for acquiring the left and right channel audio signals of the currently played video and calculating the component difference value of the left and right channel audio signals;
the average value calculation module is used for acquiring a plurality of component difference values in a preset time period and calculating the average value of the plurality of component difference values in the preset time period;
and the sound effect control module is used for determining a scene mode to which the playing video belongs according to the average value of the component difference values and controlling the surround sound of the currently played video according to the scene mode.
9. An electronic device, comprising: a processor, a memory, and a playback control program for surround sound stored on the memory and executable on the processor, wherein the playback control program for surround sound, when executed by the processor, implements the steps of:
acquiring left and right channel audio signals of a currently played video, and calculating a component difference value of the left and right channel audio signals;
obtaining a plurality of component difference values in a preset time period, and calculating the average value of the component difference values in the preset time period;
and determining a scene mode to which the playing video belongs according to the average value of the component difference values, and controlling the surround sound of the currently playing video according to the scene mode.
10. A computer-readable storage medium, having stored thereon a playback control program for the surround sound, which when executed by a processor, implements the steps of the playback control method for the surround sound according to any one of claims 1 to 7.
CN201910155870.9A 2019-03-01 2019-03-01 Method, system and device for playing control of surround sound and storage medium Pending CN111641863A (en)

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Application publication date: 20200908