CN107135413A - A kind of audio and video synchronization method and system - Google Patents
A kind of audio and video synchronization method and system Download PDFInfo
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- CN107135413A CN107135413A CN201710165024.6A CN201710165024A CN107135413A CN 107135413 A CN107135413 A CN 107135413A CN 201710165024 A CN201710165024 A CN 201710165024A CN 107135413 A CN107135413 A CN 107135413A
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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]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
- H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
- H04N21/42221—Transmission circuitry, e.g. infrared [IR] or radio frequency [RF]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
The present invention relates to Data Analysis Services field, more particularly to a kind of audio and video synchronization method and system, realize the synchronous of Voice ＆ Video data by following steps and play：Multimedia equipment is established a connection with bluetooth earphone by bluetooth；Obtain the strength indicator value that the bluetooth earphone receives signal；Obtain the bluetooth transmission speed of the multimedia equipment；Default delay coefficient, after the delay coefficient is multiplied with the bluetooth transmission speed divided by the strength indicator value, obtains delay time value；After the multimedia equipment transmission voice data, postpone the delay time value and play video data corresponding with the voice data.The present invention solves voice data when being sent by multimedia equipment to bluetooth earphone, can cause sound delay time the problem of video pictures, voice data is more accurately synchronized broadcasting with video data by the above method, improves the experience of the process of user.
Description
Technical field
The present invention relates to Data Analysis Services field, more particularly to a kind of audio and video synchronization method and system.
Background technology
With the popularization for the player that can support various media, more and more media file synchronization is played to obtain
Obtain and preferably appreciate effect and artistic effect, wherein it is that most widely used media are held to play video, appreciate music, browsing pictures
Line mode.
By taking multimedia equipment as an example, multimedia equipment includes intelligent television, Intelligent set top box, can carry out multi-medium data
Broadcasting.Such as when night household rests, to avoid disturbing other people, while ensureing sight to multi-medium data
Reward, sound when user may want to listen to intelligent television broadcasting video by wearing earphone, to substitute raising one's voice for intelligent television
Device plays sound.
And existing earphone mainly includes line earphone and bluetooth earphone, and there is inconvenience using wired earphone, when
User when watching intelligent television, viewing location generally apart from intelligent television farther out, it is therefore desirable to using very long earphone cord, together
When user when walking in doors, because the line of earphone is longer, may be wound with tables and chairs within doors, it is dangerous；And use bluetooth
During earphone, when user distance multimedia equipment farther out when, exist bluetooth earphone broadcasting voice data postpone in multimedia equipment
The video data of broadcasting, Consumer's Experience is poor；Simultaneously according to the bluetooth earphone of high transfer rate, skill is encoded using APTX bluetooths
Art, postpones as little as 32 milliseconds in theory, belongs to the scope that the mankind can not perceive, but theoretical value is not often in actual conditions up to
Arrive, at the same when transmission range farther out when, delay phenomenon is more apparent, and such bluetooth earphone cost is higher, and common bluetooth
Earphone, the delay for having 170 milliseconds or so, when particularly playing the sound of high tone quality, the data volume for being transferred to bluetooth earphone is big, leads
Cause audio to increase relative to video delay time, influence the experience of user.
The content of the invention
The technical problems to be solved by the invention are：There is provided a kind of audio and video synchronization method and system, audio is solved
When data are sent to bluetooth earphone by multimedia equipment, sound delay time can be caused the problem of video pictures.
In order to solve the above-mentioned technical problem, the invention provides a kind of audio and video synchronization method, comprise the following steps：
S1：Multimedia equipment is established a connection with bluetooth earphone by bluetooth；
S2：Obtain the strength indicator value that the bluetooth earphone receives signal；
S3：Obtain the bluetooth transmission speed of the multimedia equipment；
S4：Default delay coefficient, after the delay coefficient is multiplied with the bluetooth transmission speed divided by the intensity refers to
Indicating value, obtains delay time value；
S5：After the multimedia equipment transmission voice data, postpone the delay time value and play and the voice data
Corresponding video data.
Present invention also offers a kind of audio-visual synchronization system, including：
Module is set up, is established a connection for multimedia equipment with bluetooth earphone by bluetooth；
First acquisition module, the strength indicator value of signal is received for obtaining the bluetooth earphone；
Second acquisition module, the bluetooth transmission speed for obtaining the multimedia equipment；
Computing module, for default delay coefficient, after the delay coefficient is multiplied with the bluetooth transmission speed divided by
The strength indicator value, obtains delay time value；
Playing module, after multimedia equipment transmission voice data, postpones the delay time value and plays and institute
State the corresponding video data of voice data.
Beneficial effects of the present invention are：
Relative in the prior art, when voice data is sent to bluetooth earphone by multimedia equipment, sound delay time can be caused
The problem of video pictures；The present invention receives the strength indicator value of signal and the bluetooth of multimedia equipment by obtaining bluetooth earphone
Transmission rate, by it is default delay coefficient be multiplied with bluetooth transmission speed after divided by strength indicator value, obtain delay time value, general
Multimedia equipment postpones the delay time value playing video data, plays voice data and video data synchronization, solves
When voice data is sent to bluetooth earphone by multimedia equipment, sound delay time can be caused the problem of video pictures；Simultaneously when indigo plant
When there is shelter between tooth earphone and multimedia equipment, voice data transmission rate is often slack-off, and bluetooth earphone receives letter
Number it can die down, and the strength indicator value that bluetooth earphone is received into signal takes progress computation delay time value into account, makes audio number
Broadcasting can be more accurately synchronized according to video data, the experience of the process of user is improved.
Brief description of the drawings
Fig. 1 is a kind of key step flow chart of audio and video synchronization method of the embodiment of the present invention；
Fig. 2 is a kind of step flow chart of audio and video synchronization method of the embodiment of the present invention one；
Fig. 3 is a kind of structural representation of audio-visual synchronization system of the embodiment of the present invention；
Fig. 4 is the playing module of the embodiment of the present invention and the structural representation of correction module；
Label declaration：
1st, module is set up；2nd, the first acquisition module；3rd, the second acquisition module；4th, computing module；
5th, playing module；6th, correction module；7th, detection module；8th, replicated blocks；9th, unit is suspended；
10th, acquiring unit；11st, generation unit；12nd, the first broadcast unit；13rd, the second broadcast unit；
14th, the first recording unit；15th, the second recording unit；16th, the first computing unit；
17th, the second computing unit；18th, unit is corrected.
Embodiment
To describe technology contents, the objects and the effects of the present invention in detail, below in conjunction with embodiment and coordinate attached
Figure is explained in detail.
The design of most critical of the present invention is：It is after by the way that default delay coefficient is multiplied with bluetooth transmission speed divided by strong
Indicated value is spent, delay time value is obtained, multimedia equipment is postponed into the delay time value playing video data, makes bluetooth earphone
Sound it is synchronous with multimedia video pictures play.
Fig. 1 to Fig. 2 is refer to, a kind of audio and video synchronization method that the present invention is provided comprises the following steps：
S1：Multimedia equipment is established a connection with bluetooth earphone by bluetooth；
S2：Obtain the strength indicator value that the bluetooth earphone receives signal；
S3：Obtain the bluetooth transmission speed of the multimedia equipment；
S4：Default delay coefficient, after the delay coefficient is multiplied with the bluetooth transmission speed divided by the intensity refers to
Indicating value, obtains delay time value；
S5：After the multimedia equipment transmission voice data, postpone the delay time value and play and the voice data
Corresponding video data.
It was found from foregoing description, the present invention receives strength indicator value and the multimedia equipment of signal by obtaining bluetooth earphone
Bluetooth transmission speed, by it is default delay coefficient be multiplied with bluetooth transmission speed after divided by strength indicator value, obtain be delayed when
Between be worth, multimedia equipment is postponed into the delay time value playing video data, voice data and video data synchronization is played,
When solving voice data and being sent by multimedia equipment to bluetooth earphone, sound delay time can be caused the problem of video pictures；Together
When there is shelter between bluetooth earphone and multimedia equipment, voice data transmission rate is often slack-off, bluetooth earphone
Receiving signal can die down, and the strength indicator value that bluetooth earphone is received into signal takes progress computation delay time value into account, makes
Voice data can more accurately synchronize broadcasting with video data, improve the experience of the process of user.
Further, the S5 is specially：
S51：When the multimedia equipment starts transmission voice data, suspend playing video data, while default meter
When device start timing；
S52：The video data played according to pause, obtains currently playing video time stamp；
S53：According to the video time stamp, object time stamp is played in generation；
S54：Stabbed according to the object time, the bluetooth earphone playing audio data；
S55：When the timing time of the timer reaches the delay time value, the multimedia equipment is played described
Video data.
It was found from foregoing description, by the above method, voice data can be made more precisely to be carried out with corresponding voice data
It is synchronous to play, improve the experience of the process of user；Simultaneously by obtaining currently playing video time stamp, control bluetooth earphone is gone to broadcast
Corresponding object time stamp is put, audio, video data can be made to synchronize broadcasting at any time.
Further, described a kind of audio and video synchronization method, in addition to correct the delay time value.
It was found from foregoing description, by correcting delay time value, the time that can play multimedia equipment and bluetooth earphone
Difference is smaller, makes the progress synchronous with multimedia equipment playing video data of bluetooth earphone playing audio-fequency data.
Further, " the correction delay time value " is specially：
Record the first time point during multimedia equipment transmission voice data；
Record the second time point that the bluetooth earphone parses the voice data；
According to the first time point and second time point, delay time value is obtained；
The delay time value is subtracted into the delay time value, corrected value is obtained；
According to the corrected value, the delay time value is corrected.
It was found from foregoing description, delay time value can accurately be corrected by the above method, it is ensured that the synchronization of audio, video data
Play.
Further, described a kind of audio and video synchronization method, in addition to：
Detect whether the strength indicator value of the bluetooth earphone reception signal changes；
If the strength indicator value changes, repeat step S4 and S5.
It was found from foregoing description, when user uses bluetooth earphone playing audio-fequency data, when movable indoors, bluetooth earphone from
The distance of multimedia equipment changes, and because the object of indoor placement is more, when circumstance of occlusion changes, bluetooth earphone
Reception signal strength indicator value occur, receive file speed change, delay time value changes, thus repeat walk
Rapid S4 and S5, can make bluetooth earphone in the case where use environment changes, also can guarantee that voice data and multimedia video counts
According to broadcasting simultaneously.
It refer to Fig. 3 to Fig. 4, a kind of audio-visual synchronization system that the present invention is provided, including：
Module 1 is set up, is established a connection for multimedia equipment with bluetooth earphone by bluetooth；
First acquisition module 2, the strength indicator value of signal is received for obtaining the bluetooth earphone；
Second acquisition module 3, the bluetooth transmission speed for obtaining the multimedia equipment；
Computing module 4, for default delay coefficient, after the delay coefficient is multiplied with the bluetooth transmission speed divided by
The strength indicator value, obtains delay time value；
Playing module 5, after multimedia equipment transmission voice data, postpones the delay time value and plays and institute
State the corresponding video data of voice data.
It was found from foregoing description, the present invention receives strength indicator value and the multimedia equipment of signal by obtaining bluetooth earphone
Bluetooth transmission speed, by it is default delay coefficient be multiplied with bluetooth transmission speed after divided by strength indicator value, obtain be delayed when
Between be worth, multimedia equipment is postponed into the delay time value playing video data, voice data and video data synchronization is played,
When solving voice data and being sent by multimedia equipment to bluetooth earphone, sound delay time can be caused the problem of video pictures；Together
When there is shelter between bluetooth earphone and multimedia equipment, voice data transmission rate is often slack-off, bluetooth earphone
Receiving signal can die down, and the strength indicator value that bluetooth earphone is received into signal takes progress computation delay time value into account, makes
Voice data can more accurately synchronize broadcasting with video data, improve the experience of the process of user.
Further, the playing module 5 includes：
Suspend unit 9, for when the multimedia equipment starts transmission voice data, suspending playing video data, together
When default timer start timing；
Acquiring unit 10, for the video data played according to pause, obtains currently playing video time stamp；
Generation unit 11, for according to the video time stamp, object time stamp to be played in generation；
First broadcast unit 12, for being stabbed according to the object time, the bluetooth earphone playing audio data；
Second broadcast unit 13 is described more for when the timing time of the timer reaches the delay time value
Media device plays the video data.
It was found from foregoing description, by the above method, voice data can be made more precisely to be carried out with corresponding voice data
It is synchronous to play, improve the experience of the process of user；Simultaneously by obtaining currently playing video time stamp, control bluetooth earphone is gone to broadcast
Corresponding object time stamp is put, audio, video data any time can be made to synchronize broadcasting.
Further, described a kind of audio-visual synchronization system, in addition to：
Correction module 6, for correcting the delay time value.
It was found from foregoing description, by correcting delay time value, the time that can play multimedia equipment and bluetooth earphone
Difference is smaller, makes the progress synchronous with multimedia equipment playing video data of bluetooth earphone playing audio-fequency data.
Further, the correction module 6 includes：
First recording unit 14, for recording the first time point during multimedia equipment transmission voice data；
Second recording unit 15, the second time point of the voice data is parsed for recording the bluetooth earphone；
First computing unit 16, for according to the first time point and second time point, obtaining delay time value；
Second computing unit 17, for the delay time value to be subtracted into the delay time value, obtains corrected value；
Unit 18 is corrected, for according to the corrected value, correcting the delay time value.
It was found from foregoing description, delay time value can accurately be corrected by the above method, it is ensured that the synchronization of audio, video data
Play.
Further, described a kind of audio-visual synchronization system, in addition to：
Detection module 7, for detecting whether the strength indicator value of the bluetooth earphone reception signal changes；
Replicated blocks 8, if being changed for the strength indicator value, repeat computing module and playing module.
It was found from foregoing description, when user uses bluetooth earphone playing audio-fequency data, when movable indoors, bluetooth earphone from
The distance of multimedia equipment changes, and because the object of indoor placement is more, when circumstance of occlusion changes, bluetooth earphone
Reception signal strength indicator value occur, receive file speed change, delay time value changes, thus repeat walk
Rapid S4 and S5, can make bluetooth earphone in the case where use environment changes, also can guarantee that voice data and multimedia video counts
According to broadcasting simultaneously.
Fig. 2 is refer to, embodiments of the invention one are：
S1：Multimedia equipment is established a connection with bluetooth earphone by bluetooth；
S2：Obtain the strength indicator value that the bluetooth earphone receives signal；
Wherein, the bonding strength between bluetooth earphone and multimedia equipment, body have reacted in the strength indicator value of reception signal
The speed that bluetooth earphone receives voice data is showed；
S3：Obtain the bluetooth transmission speed of the multimedia equipment；
The S2 and S3 are performed simultaneously, wherein bluetooth transmission speed, when embodying the Bluetooth transmission file of multimedia equipment
Speed；
S4：Default delay coefficient, after the delay coefficient is multiplied with the bluetooth transmission speed divided by the intensity refers to
Indicating value, obtains delay time value；
Above-mentioned delay coefficient, can send the very first time of analogue data, and bluetooth earphone by recording multimedia equipment
The second time of analogue data is parsed, the second time was subtracted into the very first time, the actual time delay time is can obtain, while obtaining many
The bluetooth transmission speed and bluetooth earphone of media device receive the strength indicator value of signal, and the actual time delay time is multiplied by into intensity and referred to
After indicating value divided by bluetooth transmission speed, you can obtain the coefficient that is delayed；
S5：When the multimedia equipment starts transmission voice data, suspend playing video data, while default timing
Device starts timing；
S6：The video data played according to pause, obtains currently playing video time stamp；
The S5 and the S6 are performed simultaneously；
S7：According to the video time stamp, object time stamp is played in generation；
S8：Stabbed according to the object time, the bluetooth earphone playing audio data；
S9：When the timing time of the timer reaches the delay time value, the multimedia equipment is played described
Video data；
The S8 and the S9 are performed simultaneously.
It was found from foregoing description, voice data is solved by the above method and sent by multimedia equipment to bluetooth earphone
When, it can cause sound delay time the problem of video pictures, improve the experience of the process of user.
Embodiments of the invention two are：
The difference of embodiment two and embodiment one is, a kind of audio and video synchronization method, in addition to：
Record the first time point during multimedia equipment transmission voice data；
Record the second time point that the bluetooth earphone parses the voice data；
According to the first time point and second time point, delay time value is obtained；
The delay time value is subtracted into the delay time value, corrected value is obtained；
According to the corrected value, the delay time value is corrected；
Wherein, by the delay time value add the corrected value, the delay time value after correct, renewal described in prolong
When time value for correction after delay time value；
Detect whether the strength indicator value of the bluetooth earphone reception signal changes；
In whole process, whether the strength indicator value of detection bluetooth earphone reception signal changes in real time；
If the strength indicator value changes, repeat step S4, S5, S6, S7, S8 and S9.
It was found from foregoing description, by correcting the delay time value, the synchronization of voice data and video data can guarantee that
Play；Simultaneously when user uses bluetooth earphone playing audio-fequency data, when movable indoors, bluetooth earphone from multimedia equipment away from
From changing, and because the object of indoor placement is more, when circumstance of occlusion changes, the reception signal of bluetooth earphone it is strong
Spend indicated value, the speed for receiving file changes, and delay time value changes, thus repeat step S4, S5, S6, S7,
S8 and S9, can make bluetooth earphone in the case where use environment changes, also can guarantee that voice data and multimedia video data
Play simultaneously.
Fig. 3 to Fig. 4 is refer to, embodiments of the invention three are：
By setting up the bluetooth connection relation that module is set up between multimedia equipment and bluetooth earphone；First acquisition module is obtained
Take the bluetooth earphone to receive the strength indicator value of signal, and send strength indicator value to computing module；Second acquisition module is obtained
The bluetooth transmission speed of the multimedia equipment is taken, and bluetooth transmission speed is sent to computing module；It is pre- by computing module
If delay coefficient, by it is described delay coefficient be multiplied with the bluetooth transmission speed after divided by the strength indicator value, be delayed
Time value, and delay time value is sent to the second broadcast unit；Pause unit is used for when the multimedia equipment starts transmission
During voice data, suspend playing video data, while default timer starts timing, it is single that video data transmitting is delivered into acquisition
Member, and the chronometric data of timer is sent to the second broadcast unit；The video data that acquiring unit is played according to pause, is obtained
Currently playing video time stamp, and video time stamp is sent to generation unit；Generation unit according to the video time stamp,
Object time stamp is played in generation, and broadcasting object time stamp is sent to the first broadcast unit；First broadcast unit is according to described
Object time stabs, the bluetooth earphone playing audio data；Second broadcast unit is used for when the timing of the timer
Between when reaching the delay time value, the multimedia equipment plays the video data；Detection module detects the bluetooth ear
Whether the strength indicator value that machine receives signal is changed, and testing result is sent to replicated blocks；If replicated blocks are used for
The strength indicator value changes, then repeats computing module, pause unit, acquiring unit, generation unit, the first broadcasting
Unit and the second broadcast unit.
In summary, the present invention is provided a kind of audio and video synchronization method and system, letter is received by obtaining bluetooth earphone
Number strength indicator value and multimedia equipment bluetooth transmission speed, by it is default delay coefficient be multiplied with bluetooth transmission speed after
Divided by strength indicator value, delay time value is obtained, multimedia equipment is postponed into the delay time value playing video data, makes sound
Frequency evidence and video data synchronization are played, and when solving voice data and being sent by multimedia equipment to bluetooth earphone, can cause sound
Sound postpones the problem of video pictures；Simultaneously when there is shelter between bluetooth earphone and multimedia equipment, voice data is passed
Defeated speed is often slack-off, and bluetooth earphone receives signal and can died down, and the strength indicator value that bluetooth earphone is received into signal considers
Computation delay time value is carried out inside, voice data is more accurately synchronized broadcasting with video data, is improved use
The experience of the process at family.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, or other related technical fields are directly or indirectly used in, similarly
It is included within the scope of the present invention.
Claims (10)
1. a kind of audio and video synchronization method, it is characterised in that comprise the following steps：
S1：Multimedia equipment is established a connection with bluetooth earphone by bluetooth；
S2：Obtain the strength indicator value that the bluetooth earphone receives signal；
S3：Obtain the bluetooth transmission speed of the multimedia equipment；
S4：Default delay coefficient, after the delay coefficient is multiplied with the bluetooth transmission speed divided by the strength indicator value,
Obtain delay time value；
S5：After the multimedia equipment transmission voice data, postpone the delay time value and play corresponding with the voice data
Video data.
2. a kind of audio and video synchronization method according to claim 1, it is characterised in that the S5 is specially：
S51：When the multimedia equipment starts transmission voice data, suspend playing video data, while default timer
Start timing；
S52：The video data played according to pause, obtains currently playing video time stamp；
S53：According to the video time stamp, object time stamp is played in generation；
S54：Stabbed according to the object time, the bluetooth earphone playing audio data；
S55：When the timing time of the timer reaches the delay time value, the multimedia equipment plays the video
Data.
3. a kind of audio and video synchronization method according to claim 1, it is characterised in that also including correcting the delay time
Value.
4. a kind of audio and video synchronization method according to claim 3, it is characterised in that " the correction delay time value " tool
Body is：
Record the first time point during multimedia equipment transmission voice data；
Record the second time point that the bluetooth earphone parses the voice data；
According to the first time point and second time point, delay time value is obtained；
The delay time value is subtracted into the delay time value, corrected value is obtained；
According to the corrected value, the delay time value is corrected.
5. a kind of audio and video synchronization method according to claim 1, it is characterised in that also include：
Detect whether the strength indicator value of the bluetooth earphone reception signal changes；
If the strength indicator value changes, repeat step S4 and S5.
6. a kind of audio-visual synchronization system, it is characterised in that including：
Module is set up, is established a connection for multimedia equipment with bluetooth earphone by bluetooth；
First acquisition module, the strength indicator value of signal is received for obtaining the bluetooth earphone；
Second acquisition module, the bluetooth transmission speed for obtaining the multimedia equipment；
Computing module, it is after the delay coefficient is multiplied with the bluetooth transmission speed divided by described for default delay coefficient
Strength indicator value, obtains delay time value；
Playing module, after multimedia equipment transmission voice data, postpones the delay time value and plays and the sound
Frequency is according to corresponding video data.
7. a kind of audio-visual synchronization system according to claim 6, it is characterised in that the playing module includes：
Suspend unit, for when the multimedia equipment starts transmission voice data, suspending playing video data, presetting simultaneously
Timer start timing；
Acquiring unit, for the video data played according to pause, obtains currently playing video time stamp；
Generation unit, for according to the video time stamp, object time stamp to be played in generation；
First broadcast unit, for being stabbed according to the object time, the bluetooth earphone playing audio data；
Second broadcast unit, for when the timing time of the timer reaches the delay time value, the multimedia to be set
It is standby to play the video data.
8. a kind of audio-visual synchronization system according to claim 6, it is characterised in that also include：
Correction module, for correcting the delay time value.
9. a kind of audio-visual synchronization system according to claim 8, it is characterised in that the correction module includes：
First recording unit, for recording the first time point during multimedia equipment transmission voice data；
Second recording unit, the second time point of the voice data is parsed for recording the bluetooth earphone；
First computing unit, for according to the first time point and second time point, obtaining delay time value；
Second computing unit, for the delay time value to be subtracted into the delay time value, obtains corrected value；
Unit is corrected, for according to the corrected value, correcting the delay time value.
10. a kind of audio-visual synchronization system according to claim 6, it is characterised in that also include：
Detection module, for detecting whether the strength indicator value of the bluetooth earphone reception signal changes；
Replicated blocks, if being changed for the strength indicator value, repeat computing module and playing module.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109144642A (en) * | 2018-08-14 | 2019-01-04 | Oppo广东移动通信有限公司 | Display control method, device, electronic equipment and storage medium |
| CN110035310A (en) * | 2018-01-12 | 2019-07-19 | 圆刚科技股份有限公司 | A kind of synchronizer and its synchronous method of multi-media signal |
| WO2019165983A1 (en) * | 2018-02-28 | 2019-09-06 | 惠州Tcl移动通信有限公司 | Bluetooth transmission control method, control system, and storage medium |
| CN113038224A (en) * | 2021-03-26 | 2021-06-25 | 北京小米移动软件有限公司 | Sound and picture synchronization method and device |
| CN113112971A (en) * | 2021-03-30 | 2021-07-13 | 上海锣钹信息科技有限公司 | Midi defective sound playing method |
| CN114040237A (en) * | 2021-09-30 | 2022-02-11 | 茂佳科技(广东)有限公司 | Audio and video synchronous playing method, terminal, multimedia playing system and medium |
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| CN113038224A (en) * | 2021-03-26 | 2021-06-25 | 北京小米移动软件有限公司 | Sound and picture synchronization method and device |
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