CN109379613B - Audio and video synchronization adjustment method, television, computer readable storage medium and system - Google Patents
Audio and video synchronization adjustment method, television, computer readable storage medium and system Download PDFInfo
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- CN109379613B CN109379613B CN201811579856.3A CN201811579856A CN109379613B CN 109379613 B CN109379613 B CN 109379613B CN 201811579856 A CN201811579856 A CN 201811579856A CN 109379613 B CN109379613 B CN 109379613B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing 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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42203—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] sound input device, e.g. microphone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing 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
- H04N21/439—Processing of audio elementary streams
- H04N21/4394—Processing of audio elementary streams involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses an audio and video synchronization adjusting method, which comprises the following steps: when an audio and video synchronization instruction is received, generating a preset audio signal and playing the audio signal; receiving the collected audio signal sent by a sound collection device; calculating a transmission-reception time difference of the audio signal based on a time at which the audio signal is generated and a time at which the audio signal is received; and acquiring pre-stored equipment delay time, and adjusting the synchronous delay parameters of the audio and video according to the sending and receiving time difference and the equipment delay time. The invention also discloses a television, a computer readable storage medium and a system. The invention collects the television sound by adopting the music microphone of the television remote controller after the television emits the sound, automatically measures the delay time of the television sound, calculates the delay parameter according to the delay time and the sound collection time, and adjusts the time difference between the sound and the video by the calculated delay parameter, thereby realizing the beneficial effect of synchronizing the sound and the video.
Description
Technical Field
The invention relates to the technical field of multimedia playing, in particular to an audio and video synchronization adjusting method, a television, a computer readable storage medium and a computer readable storage system.
Background
At present, flat panel televisions are increasingly widely applied to multimedia video and audio playing. At present, the thinner the television is, the more the loudspeaker of the television itself becomes the bottleneck, and the sound effect of high fidelity cannot be provided, so people can also select the external high-fidelity sound box to be matched with the flat-panel television for use, such as various bluetooth sound boxes and the like, and the use is more and more extensive. Due to the diversification of sound equipment, the problem of time delay between audio signals and video signals is more and more serious, and the user experience is seriously influenced. For example, an external bluetooth speaker often has a delay, and although an existing television provides a delay adjustment function, the operation is complex, and an ordinary user is difficult to adjust accurately.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an audio and video synchronization adjusting method, and aims to solve the technical problems that in the prior art, when a television and external equipment play audio and video, the audio signal and the video signal are delayed and different due to equipment problems, and the audio and video cannot be synchronized due to the fact that the synchronization operation cannot achieve the synchronization effect due to the complex operation of the existing delay adjusting function.
In order to achieve the above object, the present invention provides an audio and video synchronization adjustment method, which includes the following steps:
when an audio and video synchronization instruction is received, generating a preset audio signal and playing the audio signal;
receiving the collected audio signal sent by a sound collection device;
calculating a transmission-reception time difference of the audio signal based on a time at which the audio signal is generated and a time at which the audio signal is received;
and acquiring pre-stored equipment delay time, and adjusting the synchronous delay parameters of the audio and video according to the sending and receiving time difference and the equipment delay time.
Preferably, the step of obtaining a pre-stored device delay time and adjusting the synchronous delay parameter of the audio and video according to the sending and receiving time and the device delay time further includes:
calculating a synchronous delay parameter according to the equipment delay time and the sending and receiving time difference;
and adjusting audio and video synchronization according to the calculated synchronization delay parameter.
Preferably, when receiving the audio/video synchronization instruction, the step of generating a preset audio signal and playing the audio signal further includes:
and sending an audio signal acquisition instruction to a sound acquisition device so that the sound acquisition device acquires the played audio signal and sends the acquired audio signal.
Preferably, the step of calculating the transmission-reception time difference of the audio signal based on the time at which the audio signal is generated and the time at which the audio signal is received further includes:
acquiring the playing time for playing the audio signal and the receiving time for receiving the audio signal;
and calculating the sending and receiving time difference according to the acquired playing time and the acquired receiving time.
Preferably, the step of receiving the collected audio signal sent by the sound collection device further includes:
comparing the received audio signal with the played audio signal to confirm whether the received audio signal is a preset audio signal;
and when the received audio signal is confirmed to be consistent with the played audio signal, confirming that the received audio signal is a preset audio signal, and calculating the sending and receiving time difference of the audio signal based on the time for generating the audio signal and the time for receiving the audio signal.
Preferably, the step of comparing the received audio signal with the played audio signal to determine whether the received audio signal is a preset audio signal further includes:
when the received audio signal is determined to be inconsistent with the played audio signal, determining that the audio signal is not a preset audio signal;
and outputting prompt information of the audio signal receiving error.
In addition, to achieve the above object, the present invention also provides a television comprising: the audio and video synchronization adjusting method comprises a memory, a processor and an audio and video synchronization adjusting program which is stored on the memory and can be operated on the processor, wherein the audio and video synchronization adjusting program realizes the steps of the audio and video synchronization adjusting method when being executed by the processor.
The present invention also provides a computer-readable storage medium, comprising: the audio and video synchronization adjusting method comprises a memory, a processor and an audio and video synchronization adjusting program which is stored on the memory and can be operated on the processor, wherein the audio and video synchronization adjusting program realizes the steps of the audio and video synchronization adjusting method when being executed by the processor.
The invention also provides an audio and video synchronization adjusting system, and the audio and video synchronization adjusting system realizes the steps of the audio and video synchronization adjusting method when in execution.
The invention provides an audio and video synchronization adjusting method, which comprises the steps of generating a preset audio signal and playing the audio signal when receiving an audio and video synchronization instruction; receiving the collected audio signal sent by a sound collection device; calculating a transmission-reception time difference of the audio signal based on a time at which the audio signal is generated and a time at which the audio signal is received; and acquiring pre-stored equipment delay time, and adjusting the synchronous delay parameters of the audio and video according to the sending and receiving time difference and the equipment delay time. The sound of the television is collected by adopting the music microphone of the television remote controller after the television emits the sound, the delay time of the television sound is automatically measured, the delay parameter is calculated according to the delay time and the sound collection time, the time difference between the sound and the video is adjusted by the calculated delay parameter, and the beneficial effect of synchronizing the sound and the video is realized.
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FIG. 1 is a schematic diagram of a terminal \ device structure of a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a first embodiment of the audio and video synchronization adjustment method according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: when an audio and video synchronization instruction is received, generating a preset audio signal and playing the audio signal; receiving the collected audio signal sent by a sound collection device; calculating a transmission-reception time difference of the audio signal based on a time at which the audio signal is generated and a time at which the audio signal is received; and acquiring pre-stored equipment delay time, and adjusting the synchronous delay parameters of the audio and video according to the sending and receiving time difference and the equipment delay time.
When the television and the external equipment play audio and video in the prior art, the time delay difference between the audio signal and the video signal caused by equipment problems, and the prior time delay adjusting function operation is complex, so that the synchronous operation cannot achieve the synchronous effect, and the audio and the video cannot be synchronized.
The invention provides a solution, which collects television sound by a music microphone of a television remote controller after the television emits sound, automatically measures the delay time of the television sound, calculates the delay parameter according to the delay time and the sound collection time, adjusts the time difference between the sound and the video by the calculated delay parameter, and realizes the beneficial effect of synchronizing the sound and the video.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be a PC, and can also be a mobile or non-mobile terminal device with a multimedia playing function, such as a smart phone, a tablet computer, an electronic book reader, a portable computer and the like.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and an audio-video synchronization adjustment application program.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call the audio-video synchronization adjustment application stored in the memory 1005, and perform the following operations:
when an audio and video synchronization instruction is received, generating a preset audio signal and playing the audio signal;
receiving the collected audio signal sent by a sound collection device;
calculating a transmission-reception time difference of the audio signal based on a time at which the audio signal is generated and a time at which the audio signal is received;
and acquiring pre-stored equipment delay time, and adjusting the synchronous delay parameters of the audio and video according to the sending and receiving time difference and the equipment delay time.
Further, the processor 1001 may call the audio-video synchronization adjustment application stored in the memory 1005, and further perform the following operations:
calculating a synchronous delay parameter according to the equipment delay time and the sending and receiving time difference;
and adjusting audio and video synchronization according to the calculated synchronization delay parameter.
Further, the processor 1001 may call the audio-video synchronization adjustment application stored in the memory 1005, and further perform the following operations:
and sending an audio signal acquisition instruction to a sound acquisition device so that the sound acquisition device acquires the played audio signal and sends the acquired audio signal.
Further, the processor 1001 may call the audio-video synchronization adjustment application stored in the memory 1005, and further perform the following operations:
acquiring the playing time for playing the audio signal and the receiving time for receiving the audio signal;
and calculating the sending and receiving time difference according to the acquired playing time and the acquired receiving time.
Further, the processor 1001 may call the audio-video synchronization adjustment application stored in the memory 1005, and further perform the following operations:
comparing the received audio signal with the played audio signal to confirm whether the received audio signal is a preset audio signal;
and when the received audio signal is confirmed to be consistent with the played audio signal, confirming that the received audio signal is a preset audio signal, and calculating the sending and receiving time difference of the audio signal based on the time for generating the audio signal and the time for receiving the audio signal.
Further, the processor 1001 may call the audio-video synchronization adjustment application stored in the memory 1005, and further perform the following operations:
when the received audio signal is determined to be inconsistent with the played audio signal, determining that the audio signal is not a preset audio signal;
and outputting prompt information of the audio signal receiving error.
Referring to fig. 2, fig. 2 is a schematic flowchart of a first embodiment of an audio and video synchronization adjusting method according to the present invention, where the audio and video synchronization adjusting method includes:
step S10, when receiving an audio and video synchronization instruction, generating a preset audio signal and playing the audio signal;
receiving an audio and video synchronization instruction according to the current multimedia file playing requirement, wherein the audio and video synchronization instruction is initiated by a user watching the current multimedia playing; or, there is a current multimedia file playing terminal to initiate; the initiating mode can be initiated by the audio and video synchronization operation set by the playing terminal, or the audio and video synchronization instruction is initiated periodically and regularly, so that the audio and video synchronization operation of the playing terminal is realized. When an audio and video synchronization instruction is received, a preset audio signal is generated and played, the preset audio signal is generated when the current multimedia file playing terminal confirms that the audio and video synchronization requirement exists at present, and the preset audio signal has specificity so as to be convenient for verification.
Further, when the step of generating a preset audio signal and playing the audio signal is performed when the audio/video synchronization instruction is received, the method further includes:
and sending an audio signal acquisition instruction to a sound acquisition device so that the sound acquisition device acquires the played audio signal and sends the acquired audio signal.
When playing the preset audio signal that generates, send audio signal collection instruction to preset sound collection system, make sound collection system gather present broadcast preset audio signal, so sound collection system receives during the audio signal collection instruction, open the recording function and record preset audio signal.
Step S20, receiving the collected audio signal sent by the sound collection device;
as described above, after playing a currently generated preset audio signal and sending an audio signal acquisition instruction to a preset sound acquisition device, the sound acquisition device is received and sends the acquired audio signal, where the sound acquisition device includes but is not limited to a terminal remote control device corresponding to a current multimedia playing terminal, so as to improve the accuracy of a delay parameter.
In addition, when receiving the audio signal sent by the sound collection device, considering the interference of the environmental sound, it is necessary to determine whether the received audio signal is correct, that is, determine whether the received audio signal is consistent with the played preset audio signal, and thus, the step of receiving the collected audio signal sent by the sound collection device further includes:
comparing the received audio signal with the played audio signal to confirm whether the received audio signal is a preset audio signal;
and when the received audio signal is confirmed to be consistent with the played audio signal, confirming that the received audio signal is a preset audio signal, and calculating the sending and receiving time difference of the audio signal based on the time for generating the audio signal and the time for receiving the audio signal.
When the current multimedia playing terminal collects the audio signal sent by the sound collection device, the received audio signal is compared with the generated and played audio signal, and whether the received audio signal is wrong or not is confirmed according to a comparison result. Therefore, when the collected audio signal is determined to be incorrect, the collected audio signal is only compared with the recorded preset audio signal, and when the collected audio signal is determined to be consistent with the preset audio signal, the received audio signal is determined to be correct, so that the signal collection time of the current playing device is calculated according to the collected collection time of the audio signal and the sending time of the output preset audio signal.
As described above, the step of comparing the received audio signal with the played audio signal to determine whether the received audio signal is a preset audio signal further includes:
when the received audio signal is determined to be inconsistent with the played audio signal, determining that the audio signal is not a preset audio signal;
and outputting prompt information of the audio signal receiving error.
According to the comparison operation of the collected audio signal and the preset audio signal, when the collected audio signal is determined to be inconsistent with the preset audio signal, the received audio signal is determined to be different from the preset audio signal, and then the problem occurs in the signal collection time of the current multimedia playing terminal.
A step S30 of calculating a transmission/reception time difference of the audio signal based on a time at which the audio signal is generated and a time at which the audio signal is received;
in step S10, the multimedia player terminal generates a preset audio signal and plays the audio signal, records the time of the audio signal, and further sends an audio signal acquisition instruction to the sound acquisition device, so that the sound acquisition device receives the played audio signal and then resends the acquired audio signal to the multimedia player terminal, so that the multimedia player terminal records the time of the audio signal when receiving the audio signal sent by the sound acquisition device, and further calculates the sending and receiving time difference of the audio signal according to the recorded time of the audio signal.
In practical applications, the step of calculating the time difference between the sending time and the receiving time based on the time for generating the audio signal and the time for receiving the audio signal may be performed by directly calculating the time difference between the sending time and the receiving time by using the sending time and the receiving time of the audio signal, and further includes:
acquiring the playing time for playing the audio signal and the receiving time for receiving the audio signal;
and calculating the sending and receiving time difference according to the acquired playing time and the acquired receiving time.
As described above, when the multimedia playing terminal generates and plays the preset audio signal, the playing time of the audio signal starts to be recorded, and receives the preset audio signal collected by the sound collection device and sends the audio signal to the multimedia playing terminal, the multimedia playing terminal receives the receiving time of the audio signal, calculates the time difference between the playing time and the receiving time, and defines the time difference as the sending and receiving time difference.
And step S40, obtaining the pre-stored device delay time, and adjusting the synchronous delay parameters of the audio and video according to the sending and receiving time difference and the device delay time.
According to the calculated sending and receiving time difference of the multimedia playing terminal, obtaining a pre-stored device delay time, wherein the device delay time is associated with other terminals associated with the multimedia playing terminal, including but not limited to sound, projection and the like, and the other terminals are associated in a manner that the other terminals can be associated when the multimedia playing terminal is associated, so that according to the association relationship, when the other terminals play multimedia files consistent with the multimedia playing terminal, a delay condition exists, and further when the delay condition is reduced, the device delay time based on the other terminals is preset, and the device delay time is set based on a single other terminal, so that when the current multimedia playing terminal is associated with other terminals to play the multimedia files, if there are a plurality of other terminals, the method needs to correspondingly acquire the device delay time preset by other devices according to the device delay time preset by a plurality of other terminals, and then adjusts the synchronous delay parameter of the current audio and video according to the calculated sending and receiving time difference and the device delay time, and further, when the playing delay condition of the current multimedia playing terminal is adjusted through the synchronous delay parameter, in practical application, the method is generally realized by setting the relevant synchronous delay parameter in the multimedia playing terminal, therefore, the steps of acquiring the pre-stored device delay time and adjusting the synchronous delay parameter of the audio and video according to the sending and receiving time and the device delay time further comprise:
calculating a synchronous delay parameter according to the equipment delay time and the sending and receiving time difference;
and adjusting audio and video synchronization according to the calculated synchronization delay parameter.
And calculating the synchronous delay parameter of the multimedia playing terminal according to the acquired equipment delay time and the calculated sending and receiving time difference, wherein the calculation formula of the synchronous delay parameter is the time difference between the sending and receiving time difference and the equipment delay time, so that the calculated synchronous delay parameter is set as the audio and video playing synchronous parameter of the current multimedia playing terminal in practical application according to the sending and receiving time difference and the equipment delay time, and the audio and video playing synchronization of the multimedia playing terminal is realized. When the calculated synchronous delay parameter is set as the synchronous parameter of the playing terminal, the calculated synchronous delay parameter can be set as an audio and video synchronous processing module through a synchronous controller of the playing terminal, so that the audio and video synchronous processing module adjusts the speed of the currently played audio and video according to the set parameter value, the currently played picture and the sound are synchronously output, and audio and video synchronization is realized.
In the embodiment, after the television emits sound, the music microphone of the television remote controller is used for collecting the television sound, the delay time of the television sound is automatically measured, the delay parameter is calculated according to the delay time and the sound collection time, the time difference between the sound and the video is adjusted by the calculated delay parameter, and the beneficial effect of synchronizing the sound and the video is realized.
In addition, an embodiment of the present invention further provides a computer-readable storage medium, where an audio and video synchronization adjustment program is stored on the computer-readable storage medium, and when executed by a processor, the audio and video synchronization adjustment program implements the following operations:
when an audio and video synchronization instruction is received, generating a preset audio signal and playing the audio signal;
receiving the collected audio signal sent by a sound collection device;
calculating a transmission-reception time difference of the audio signal based on a time at which the audio signal is generated and a time at which the audio signal is received;
and acquiring pre-stored equipment delay time, and adjusting the synchronous delay parameters of the audio and video according to the sending and receiving time difference and the equipment delay time.
Further, when being executed by the processor, the audio/video synchronization adjustment program further realizes the following operations:
calculating a synchronous delay parameter according to the equipment delay time and the sending and receiving time difference;
and adjusting audio and video synchronization according to the calculated synchronization delay parameter.
Further, when being executed by the processor, the audio/video synchronization adjustment program further realizes the following operations:
and sending an audio signal acquisition instruction to a sound acquisition device so that the sound acquisition device acquires the played audio signal and sends the acquired audio signal.
Further, when being executed by the processor, the audio/video synchronization adjustment program further realizes the following operations:
acquiring the playing time for playing the audio signal and the receiving time for receiving the audio signal;
and calculating the sending and receiving time difference according to the acquired playing time and the acquired receiving time.
Further, when being executed by the processor, the audio/video synchronization adjustment program further realizes the following operations:
comparing the received audio signal with the played audio signal to confirm whether the received audio signal is a preset audio signal;
and when the received audio signal is confirmed to be consistent with the played audio signal, confirming that the received audio signal is a preset audio signal, and calculating the sending and receiving time difference of the audio signal based on the time for generating the audio signal and the time for receiving the audio signal.
Further, when being executed by the processor, the audio/video synchronization adjustment program further realizes the following operations:
comparing the received audio signal with the played audio signal to confirm whether the received audio signal is a preset audio signal;
and when the received audio signal is confirmed to be consistent with the played audio signal, confirming that the received audio signal is a preset audio signal, and calculating the sending and receiving time difference of the audio signal based on the time for generating the audio signal and the time for receiving the audio signal.
The invention also provides an audio and video synchronization adjusting system, which comprises sound equipment and multimedia playing equipment which are connected with each other, wherein:
the sound equipment comprises a sound acquisition device and a sound playing device;
the multimedia playing device comprises a memory, a processor and an audio and video synchronization adjusting program which is stored on the memory and can run on the processor, wherein when the audio and video synchronization adjusting program is executed by the processor, the content of the audio and video synchronization adjusting method embodiment is realized.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system 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 system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. An audio and video synchronization adjusting method is characterized by comprising the following steps:
receiving an audio and video synchronization instruction, and generating a preset audio signal according to the audio and video synchronization instruction;
playing the audio signal and receiving the audio signal collected by a sound collection device;
calculating the sending and receiving time difference of the audio signal according to the playing time of the audio signal and the receiving time of the audio signal;
acquiring pre-stored equipment delay time, and calculating a synchronous delay parameter according to the equipment delay time and the sending and receiving time difference;
and adjusting the audio and video synchronization of the current multimedia playing terminal according to the synchronization delay parameter.
2. The audio-video synchronization adjustment method according to claim 1, wherein the step of playing the audio signal further comprises:
and sending an audio signal acquisition instruction to a sound acquisition device so that the sound acquisition device acquires the played audio signal and sends the acquired audio signal.
3. The audio-video synchronization adjusting method according to claim 1, wherein the step of calculating the transmission/reception time difference of the audio signal according to the playing time of the audio signal and the receiving time of the audio signal comprises:
acquiring the playing time for playing the audio signal and the receiving time for receiving the audio signal;
and calculating the sending and receiving time difference according to the acquired playing time and the acquired receiving time.
4. The audio-video synchronization adjustment method according to claim 1, wherein after the step of receiving the audio signal collected by the sound collection device, the method further comprises:
comparing the received audio signal with the played audio signal to confirm whether the received audio signal is a preset audio signal;
and when the received audio signal is confirmed to be consistent with the played audio signal, confirming that the received audio signal is a preset audio signal, and calculating the sending and receiving time difference of the audio signal based on the time for generating the audio signal and the time for receiving the audio signal.
5. The audio-video synchronization adjusting method according to claim 4, wherein after the step of comparing the received audio signal with the played audio signal to determine whether the received audio signal is a preset audio signal, the method further comprises:
when the received audio signal is determined to be inconsistent with the played audio signal, determining that the audio signal is not a preset audio signal;
and outputting prompt information of the audio signal receiving error.
6. A television, the television comprising: a memory, a processor and an audio-video synchronization adjustment program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the audio-video synchronization adjustment method as claimed in any one of claims 1 to 5.
7. A computer-readable storage medium, the computer-readable storage medium comprising: a memory, a processor and an audio-video synchronization adjustment program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the audio-video synchronization adjustment method as claimed in any one of claims 1 to 5.
8. The audio and video synchronization adjustment system is characterized by comprising sound equipment and multimedia playing equipment which are connected with each other, wherein:
the sound equipment comprises a sound acquisition device and a sound playing device;
multimedia playing device comprising a memory, a processor and an audio-video synchronization adjustment program stored on said memory and executable on said processor, said audio-video synchronization adjustment program when executed by the processor implementing the steps of the audio-video synchronization adjustment method according to any of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811579856.3A CN109379613B (en) | 2018-12-21 | 2018-12-21 | Audio and video synchronization adjustment method, television, computer readable storage medium and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811579856.3A CN109379613B (en) | 2018-12-21 | 2018-12-21 | Audio and video synchronization adjustment method, television, computer readable storage medium and system |
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| Publication Number | Publication Date |
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| CN109379613A CN109379613A (en) | 2019-02-22 |
| CN109379613B true CN109379613B (en) | 2021-11-09 |
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| CN112118527A (en) * | 2019-06-19 | 2020-12-22 | 华为技术有限公司 | Multimedia information processing method, device and storage medium |
| CN112449278B (en) * | 2019-09-03 | 2022-04-22 | 深圳Tcl数字技术有限公司 | Method, device and equipment for automatically calibrating delay output sound and storage medium |
| CN110830832B (en) * | 2019-10-31 | 2022-06-14 | 广州市百果园信息技术有限公司 | Audio playing parameter configuration method of mobile terminal and related equipment |
| CN110971783B (en) * | 2019-11-29 | 2022-08-02 | 深圳创维－Rgb电子有限公司 | Television sound and picture synchronous self-tuning method, device and storage medium |
| CN113497914A (en) * | 2020-03-20 | 2021-10-12 | 阿里巴巴集团控股有限公司 | Information determination method and system, electronic equipment, autonomous mobile equipment and camera |
| CN113766283A (en) * | 2020-06-02 | 2021-12-07 | 云米互联科技(广东)有限公司 | Video synchronous playing method and device and computer readable storage medium |
| CN112004133A (en) * | 2020-09-04 | 2020-11-27 | 成都极米科技股份有限公司 | Sound and picture synchronization method and device, projection equipment and readable storage medium |
| CN115243087A (en) * | 2022-07-04 | 2022-10-25 | 北京小糖科技有限责任公司 | Audio and video co-shooting processing method and device, terminal equipment and storage medium |
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