CN109167890A - A kind of sound draws synchronous method and device and display equipment - Google Patents
A kind of sound draws synchronous method and device and display equipment Download PDFInfo
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- CN109167890A CN109167890A CN201810962929.0A CN201810962929A CN109167890A CN 109167890 A CN109167890 A CN 109167890A CN 201810962929 A CN201810962929 A CN 201810962929A CN 109167890 A CN109167890 A CN 109167890A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
Abstract
The embodiment of the present invention discloses a kind of sound and draws synchronous method and device and display equipment, is related to electronic technology field, can be realized sound and draws and synchronizes, and improves user experience.This method comprises: the sound is drawn data buffer storage when determining has sound to draw data output；It obtains sound and draws synchronous setting parameter；When sound draws synchronous setting parameter less than 0, synchronous setting parameter is drawn according to sound, described image data are delayed into output to display equipment after image procossing, and the audio data is exported to power amplifying device.
Description
Technical field
The embodiment of the present invention is related to electronic technology field more particularly to a kind of sound draws synchronous method and device and display is set
It is standby.
Background technique
In audio and video playing technology, playback equipment (such as TV) (includes audio data in one video file of decoding
And image data) after, by image data, by image procossing (such as image decoding, image quality adjusting etc.), output is to screen, by sound
Output is to loudspeaker according to acoustic processing (such as decode, amplify) is carried out for frequency, to realize the broadcasting of video file.However, by
It is larger in image data and will also by image quality adjust etc. image processing process so that image data is exported to screen than audio number
It is slower to loudspeaker according to exporting, therefore so that audio data delay output to the scheme of loudspeaker is guaranteed audio-video by taking
Synchronous, delay time is that image data exports slow duration than audio data.
However, with the hair of the sound effect technologies such as Doby, DTS (digital theater systems, Digital Theater System)
Exhibition, user reach the scene of better stereoscopic effect using ARC (audio return channel, sound passback) external power amplifier
It is more and more.But due to this scene, audio is passed through external power amplifying device without audio decoder by TV, by function
Equipment is put to be decoded audio data.And audio transparent transmission is carried out to audio data and is added at power amplifying device decoding and audio
Reason is then likely to occur sound broadcasting than image and shows the case where also delaying, causes sound to draw asynchronous.
Summary of the invention
The embodiment of the present invention provides a kind of sound and draws synchronous method and device and display equipment, can be realized sound and draws and synchronizes,
Improve user experience.
In a first aspect, providing a kind of sound picture synchronous method, comprising:
The sound is drawn into data buffer storage when determining has sound to draw data output, it includes audio data and figure that the sound, which draws data,
As data；
It obtains sound and draws synchronous setting parameter, the sound draws synchronous setting parameter and is used to indicate the audio data and the figure
As the output of data is delayed；
When the sound draws synchronous setting parameter less than 0, synchronous setting parameter is drawn for described image data according to the sound
Output extremely display equipment is delayed after image procossing, and the audio data is exported to power amplifying device.
In the above scheme, sound to be output can be drawn to data buffer storage, it includes audio data and figure that middle pitch, which draws data,
As data；Then, sound draw synchronizing device obtain the output delay for being used to indicate audio data and image data sound draw synchronize set
Set parameter；When determining that sound draws synchronous setting parameter less than 0, synchronous setting parameter is drawn according to the sound and passes through described image data
Output extremely display equipment is delayed after crossing image procossing, and the audio data is exported to power amplifying device.In this way, image data mentions
It is preceding in audio data, can realize that sound is drawn by delaying image data and synchronize, improve user experience.
Second aspect provides a kind of sound picture synchronizing device, comprising: processing unit, for thering is sound to draw data output when determining
When the sound drawn into data buffer storage, it includes audio data and image data that the sound, which draws data,；The processing unit is also used to obtain
Sound is taken to draw synchronous setting parameter, the sound draws synchronous setting parameter and is used to indicate the defeated of the audio data and described image data
It is delayed out；Output unit, for when the sound draws synchronous setting parameter less than 0, drawing synchronous setting parameter according to the sound will
Described image data delay output extremely display equipment after image procossing, and the audio data is exported to power amplifying device.
The third aspect provides a kind of sound picture synchronizing device, including communication interface, processor, memory, bus；It is described to deposit
For storing computer executed instructions, the processor is connect with the memory by the bus reservoir, when the sound is drawn
When synchronizing device is run, the processor executes the computer executed instructions of the memory storage, synchronizes so that the sound is drawn
Device executes above-mentioned sound and draws synchronous method.
Fourth aspect provides a kind of computer storage medium, including instruction, when described instruction is run on computers,
So that the computer executes sound described in first aspect and draws synchronous method.
5th aspect, provides a kind of display equipment, draws synchronizing device including the sound as described in second aspect, the third aspect.
It is to be appreciated that any display equipment of above-mentioned offer, sound draw synchronizing device or computer storage medium is used
In executing the corresponding method of first aspect presented above, therefore, the attainable beneficial effect of institute can refer to above first
The beneficial effect of corresponding scheme in the method and following detailed description of aspect, details are not described herein again.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the way of output schematic diagram of a kind of image data and audio data that the embodiment of the present invention provides；
Fig. 2 is the progress bar schematic diagram that a kind of sound that the embodiment of the present invention provides draws locking range；
Fig. 3 is a kind of way of output schematic diagram for audio data that the embodiment of the present invention provides；
Fig. 4 is the way of output schematic diagram of a kind of image data and audio data that another embodiment of the present invention provides；
Fig. 5 is the flow diagram that a kind of sound provided of the invention draws synchronous method；
Fig. 6 is the progress bar schematic diagram that a kind of sound that another embodiment of the present invention provides draws locking range；
Fig. 7 is the structural schematic diagram that a kind of sound that the embodiment of the present invention provides draws synchronizing device；
Fig. 8 is the structural schematic diagram that a kind of sound that another embodiment of the present invention provides draws synchronizing device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Currently, playback equipment (such as TV) (includes audio in one video file of decoding in audio and video playing technology
Data and image data) after, image data is exported by image procossing (such as image decoding, image quality adjusting etc.) to screen,
Audio data is carried out acoustic processing (such as decode, amplify), and output is to loudspeaker, to realize the broadcasting of video file.So
And since image data is larger and will also be by image processing process such as image quality adjustings, so that image data is exported to screen ratio
Audio data exports slower to loudspeaker, therefore guarantees that audio data delay output to the scheme of loudspeaker by taking
Audio-visual synchronization, delay time are that image data exports slow duration than audio data.
As shown in Figure 1, due to needing to carry out image data image procossing to will cause delay Tv, to audio data carry out sound
Sound, which is handled, will cause delay Ta, and usually Tv > Ta.Current sound first passes through chip ability caching headed by drawing synchronization process process
Certain audio data as shown in Fig. 2, the UI reception delay by human-computer interaction instructs, such as can be shown in UI for giving birth to
At the progress bar of time delay command, wherein the time delay command adjust sound draw locking range be progress bar as shown in Figure 2 shown in,
Are as follows:-10-10 (unit can be second or millisecond), with time delay command when Ta δ=Tv-Ta for 0, at this time since image data passes through
Image procossing delay Tv, audio data carry out acoustic processing delay Ta, are then equivalent to audio data and export relative to image data
It exports to screen delay Ta δ to loudspeaker, then sound, which is drawn, synchronizes；Audio data output delay is 0 when time delay command is -10, delay
Audio data output delay is maximum TaMAX when instruction is 10.
However, user reaches preferably three-dimensional effect using the external power amplifier of ARC with the development of the sound effect technologies such as Doby, DTS
The scene of fruit is more and more.But due to this scene, audio is passed through external power amplifier and set by TV without audio decoder
It is standby, audio data is decoded by power amplifying device, as shown in Figure 3.And audio transparent transmission is carried out to audio data and is set plus power amplifier
Standby decoding and audio effect processing are then likely to occur sound broadcasting than image and show the case where also delaying, cause sound to draw asynchronous.
As shown in figure 4, being carried out to audio data saturating due to needing to carry out image data image procossing to will cause delay Tv
Biography causes delay Ta, and power amplifying device carries out acoustic processing to audio data and further results in delay Ta ', and as Ta ' > Ta δ,
Illustrate that sound broadcasting is shown than image also to delay, then sound not can solve by audio data delay and draw nonsynchronous problem.
Include the following steps: referring to Figure 5 to solve the above problems, providing a kind of sound and drawing synchronous method
101, determine whether that audio, video data exports.
102, sound is drawn into data buffer storage when determining has sound to draw data output, obtains sound and draws synchronous setting parameter M.
Wherein, it includes audio data and image data that sound, which draws data, and sound draws synchronous setting parameter M and is used to indicate audio data
Output with image data is delayed.
Wherein it is possible to receive the operational order of user's input by user interface UI, obtains the sound that operational order carries and draw
Synchronous setting parameter M.Referring to shown in Fig. 6, it can show that different sounds is drawn in user interface and synchronize the corresponding adjusting of setting parameter
Progress bar, for example,-N -10, user can draw synchronous setting ginseng to TV input sound in the position that user interface adjusts progress bar
Number M, wherein sound draws synchronous setting parameter M=0 when Ta δ=Tv-Ta, and image data is delayed Tv through image procossing at this time, audio number
According to power amplifying device delay Ta is pass-through to, it is equivalent to audio data and exports relative to image data delay Ta δ to power amplifying device, sound is drawn
The delay of synchronous setting part correspondence image data of the parameter M less than 0, sound draw the part diaphone that synchronous setting parameter M is greater than 0
The delay of frequency evidence.
103, when sound draws synchronous setting parameter less than 0, synchronous setting parameter is drawn according to sound, image data is passed through into image
Output extremely display equipment is delayed after processing, and audio data is exported to power amplifying device.
Specifically, determining when determining the synchronous setting parameter of sound picture less than 0 and realizing that sound picture is same by delaying image data
Step.And since the frame per second of the corresponding image data of different video file is not necessarily identical same, it is delayed calculating image data
When the frame number of output, need to consider the frame per second of image data.
If the frame per second of image data is identical as the play frame rate of default, draw what synchronization setting parameter determination was delayed according to sound
Described image data after image procossing are delayed output to display equipment according to the frame number delayed by frame number；For example, current
The frame per second of image data is identical with the play frame rate of the default of user setting at that time, directly presses corresponding data M, and correspondence delays phase
Answer frame number image.For example, when M unit is ms, image data is then delayed the output of M/ (1000/F) frame by frame per second F.
When the play frame rate of the frame per second of image data and default is not identical, according to the frame per second of image data, default broadcast
It puts frame per second and sound and draws synchronous setting parameter and calculate the frame number delayed, it will be described in after image procossing according to the frame number delayed
Image data delays output.Wherein, the frame number delayed meets following condition: N* (1000/F) > Ta ', wherein N is the frame delayed
Number, F are the frame per second of image data, and Ta ' is to be delayed caused by power amplifying device processing audio data.
When the frame per second F of the current image date and play frame rate F' of default not identical, the frame of current image date is calculated
The corresponding sound of rate draws synchronous setting parameter M', delays corresponding frame number according to M' to image data.The power amplifying device that user uses
When fixed, when power amplifying device is audio data processing caused by be delayed also be accordingly just fixed.So being wanted when sound draws synchronous
Guarantee that delay is identical, since the frame per second of image data is different, every frame data are time-consuming different, and time-consuming situation is that (F is to work as to 1000ms/F
Preceding frame per second).If it is the data of 50 frames, every frame time-consuming is exactly 1000/50=20ms, similarly the data of 24 frames, and every frame time-consuming is just
It is 1000/24 ≈ 42ms.So also recording picture number simultaneously in caching image data if sound draws synchronous setting parameter M < 0
According to frame per second need to confirm by M'=F'/F*M (calculate data need round) if frame per second changes
Specific image delays frame number, guarantees the data of different frame rates with this, and corresponding delay most levels off to synchronization.
In the above scheme, sound to be output can be drawn to data buffer storage, it includes audio data and figure that middle pitch, which draws data,
As data；Then, it obtains and is used to indicate audio data setting parameter synchronous with the sound picture of output delay of image data；Work as determination
When sound draws synchronous setting parameter less than 0, synchronous setting parameter is drawn for described image data after image procossing according to the sound
Output extremely display equipment is delayed, and the audio data is exported to power amplifying device.In this way, image data is in advance in audio number
According to, can by delay image data realize sound draw synchronize, improve user experience.
In addition, further including following steps:
104, when sound, which draws synchronous setting parameter, is greater than 0, synchronous setting parameter is drawn according to sound, audio data is delayed into output
It is exported after image procossing to power amplifying device, and by image data to display equipment.
For example, sound, which draws the synchronous parameter that is arranged, is greater than 0, determines and realize that sound draws synchronization by delaying audio data, if specific M table
Show and need to delay audio data into Mms, then according to UI obtain operational order in carry audio data is delayed Mms export to
Power amplifying device, and the image data after image procossing is exported to display equipment.
105, when sound, which draws synchronous setting parameter, is equal to 0, synchronous setting parameter is drawn according to sound, image data is passed through into image
Output extremely display equipment after processing, and audio data is exported to power amplifying device.
At this point, not to image data and/or audio data do it is additional delay processing, that is, think to carry out image data
Image procossing will cause delay Tv, carries out transparent transmission to audio data and delay Ta and power amplifying device is caused to carry out audio data
Acoustic processing further results in delay Ta ', can't synchronize and impact to sound picture.
In this way, drawing synchronous setting parameter when sound draws synchronous setting parameter and is greater than 0 according to sound and audio data being delayed output
It is exported after image procossing to power amplifying device, and by described image data to display equipment；When sound draws synchronous setting parameter etc.
When 0, synchronous setting parameter is drawn according to the sound and exports described image data to display equipment after image procossing, and will
Audio data is exported to power amplifying device.Therefore, no matter audio data is in advance in image data or image data in advance in audio
Data can be realized sound through the above scheme and draw synchronization, improve user experience.
Referring to shown in Fig. 7, a kind of sound picture synchronizing device is provided, comprising:
Processing unit 71, for the sound to be drawn data buffer storage when determining has sound to draw data output, wherein the sound draws number
According to including audio data and image data.
Processing unit 71 is also used to obtain sound and draws synchronous setting parameter, and sound draws synchronous setting parameter and is used to indicate the sound
Frequency is delayed according to the output with described image data；
Output unit 72, for drawing synchronous setting parameter according to the sound when the sound draws synchronous setting parameter less than 0
Described image data are delayed into output extremely display equipment after image procossing, and the audio data is exported to power amplifier and is set
It is standby.
In a kind of illustrative scheme, output unit 72 is used for when the sound draws synchronous setting parameter and is greater than 0, root
The audio data is delayed according to sound picture synchronous setting parameter and is exported to power amplifying device, and by described image data by figure
As output extremely display equipment after processing.The output unit 72 is used for when the sound draws synchronous setting parameter and is equal to 0, according to
The sound is drawn synchronous setting parameter and export described image data after image procossing to showing equipment, and by the audio number
According to output to power amplifying device.
In a kind of illustrative scheme, the output unit 72 is specifically used for when the synchronous setting parameter of sound picture is small
When 0, however, it is determined that the frame per second of described image data and the play frame rate of default are identical, then draw synchronous setting parameter according to the sound
It determines the frame number delayed, the described image data after image procossing is delayed to display by output according to the frame number delayed
Equipment；When the play frame rate of the frame per second of described image data and default is not identical, according to the frame per second of described image data, described
The play frame rate of default and the sound draw synchronous setting parameter and calculate the frame number delayed, and will be passed through according to the frame number delayed
Described image data after image procossing delay output.
In a kind of illustrative scheme, the frame number delayed meets following condition:
N* (1000/F) > Ta ', wherein N is the frame number delayed, and the F is the frame per second of described image data, Ta '
To be delayed caused by the power amplifying device processing audio data.
In a kind of illustrative scheme, the processing unit 71 is specifically used for receiving user's input by user interface
Operational order, obtain the sound that the operational order carries and draw synchronous setting parameter.
Wherein, all related contents for each step that above method embodiment is related to can quote corresponding function module
Function description, effect details are not described herein.
Using integrated module, it includes: storage unit, processing unit and interface list that sound, which draws synchronizing device,
Member.The movement that processing unit is used to draw sound synchronizing device carries out control management, for example, processing unit is for supporting sound is drawn to synchronize
Device executes the process 101-105 in Fig. 5.The interaction that interface unit is used to that sound to be supported to draw synchronizing device and other devices, such as
With the interaction of display equipment or power amplifying device.Storage unit draws the program code and data of synchronizing device for storing sound.
Wherein, using processing unit as processor, storage unit is memory, and interface unit is for communication interface.Wherein,
Sound draws synchronizing device referring to fig. 8, including communication interface 801, processor 802, memory 803 and bus 804, and communication connects
Mouth 801, processor 802 are connected by bus 804 with memory 803.
Processor 802 can be a general central processor (Central Processing Unit, CPU), micro process
Device, application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC) or one or more
A integrated circuit executed for controlling application scheme program.
Memory 803 can be read-only memory (Read-Only Memory, ROM) or can store static information and instruction
Other kinds of static storage device, random access memory (Random Access Memory, RAM) or letter can be stored
The other kinds of dynamic memory of breath and instruction, is also possible to Electrically Erasable Programmable Read-Only Memory (Electrically
Erasable Programmable Read-only Memory, EEPROM), CD-ROM (Compact Disc Read-
Only Memory, CD-ROM) or other optical disc storages, optical disc storage (including compression optical disc, laser disc, optical disc, digital universal
Optical disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or store to have referring to
Enable or data structure form desired program code and can by any other medium of computer access, but not limited to this.
Memory, which can be, to be individually present, and is connected by bus with processor.Memory can also be integrated with processor.
Wherein, memory 803 is used to store the application code for executing application scheme, and is controlled by processor 802
System executes.Communication interface 801 is used to carry out information exchange with other devices, such as carries out letter with display equipment or power amplifying device
Breath interaction.Processor 802 is for executing the application code stored in memory 803, to realize in the embodiment of the present application
The method.
The embodiment of the present invention provides a kind of display equipment, draws synchronizing device including above-mentioned sound.In addition, also providing one kind
Calculate storage media (or medium), the instruction of the operation including carrying out the method in above-described embodiment when executed.
In addition, also providing a kind of computer program product, including above-mentioned calculating storage media (or medium).
It should be understood that in various embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not meant to execute suitable
Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, it can be with
It realizes by another way.For example, apparatus embodiments described above are merely indicative, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of equipment or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (full name in English: read-only memory, English letter
Claim: ROM), random access memory (full name in English: random access memory, English abbreviation: RAM), magnetic disk or light
The various media that can store program code such as disk.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of sound draws synchronous method characterized by comprising
The sound is drawn into data buffer storage when determining has sound to draw data output, it includes audio data and picture number that the sound, which draws data,
According to；
It obtains sound and draws synchronous setting parameter, the sound draws synchronous setting parameter and is used to indicate the audio data and described image number
According to output delay；
When the sound draws synchronous setting parameter less than 0, synchronous setting parameter is drawn according to the sound and passes through described image data
Output extremely display equipment is delayed after image procossing, and the audio data is exported to power amplifying device.
2. sound according to claim 1 draws synchronous method, which is characterized in that further include:
When the sound, which draws synchronous setting parameter, is greater than 0, synchronous setting parameter is drawn according to the sound and delays the audio data
It exports to power amplifying device, and described image data is exported after image procossing to display equipment；
When the sound, which draws synchronous setting parameter, is equal to 0, synchronous setting parameter is drawn according to the sound and passes through described image data
Output extremely display equipment after image procossing, and the audio data is exported to power amplifying device.
3. sound according to claim 1 draws synchronous method, which is characterized in that when the sound draws synchronous setting parameter less than 0
When, synchronous setting parameter is drawn according to the sound, described image data are delayed into output to display equipment, packet after image procossing
It includes:
When the sound draws synchronous setting parameter less than 0, however, it is determined that the play frame rate phase of the frame per second of described image data and default
Together, then synchronous setting parameter is drawn according to the sound and determines the frame number delayed, image procossing will be passed through according to the frame number delayed
Described image data afterwards delay output to display equipment；
When the play frame rate of the frame per second of described image data and default is not identical, according to the frame per second of described image data, described
The play frame rate of default and the sound draw synchronous setting parameter and calculate the frame number delayed, and will be passed through according to the frame number delayed
Described image data after image procossing delay output.
4. sound according to claim 3 draws synchronous method, which is characterized in that the frame number delayed meets following condition:
N* (1000/F) > Ta ', wherein N is the frame number delayed, and the F is the frame per second of described image data, and Ta ' is institute
It states power amplifying device and handles delay caused by the audio data.
5. sound according to claim 1 draws synchronous method, which is characterized in that the acquisition sound draws synchronous setting parameter, packet
It includes: receiving the operational order of user's input by user interface, obtain the sound that the operational order carries and draw synchronous setting parameter.
6. a kind of sound draws synchronizing device characterized by comprising
Processing unit, for the sound to be drawn data buffer storage when determining has sound to draw data output, it includes sound that the sound, which draws data,
Frequency evidence and image data；
The processing unit is also used to obtain sound and draws synchronous setting parameter, the sound draw synchronous setting parameter be used to indicate it is described
The output of audio data and described image data is delayed；
Output unit, for when the sound draws synchronous setting parameter less than 0, drawing synchronous setting parameter according to the sound will be described
Image data delays output extremely display equipment after image procossing, and the audio data is exported to power amplifying device.
7. sound according to claim 6 draws synchronizing device, which is characterized in that
The output unit is also used to draw synchronous setting parameter according to the sound when the sound draws synchronous setting parameter and is greater than 0
The audio data is delayed and is exported to power amplifying device, and described image data are exported after image procossing to display and are set
It is standby；
The output unit is also used to draw synchronous setting parameter according to the sound when the sound draws synchronous setting parameter and is equal to 0
Described image data are exported to display equipment after image procossing, and the audio data is exported to power amplifying device.
8. sound according to claim 6 draws synchronizing device, which is characterized in that
The output unit is specifically used for when the sound draws synchronous setting parameter less than 0, however, it is determined that the frame of described image data
Rate is identical as the play frame rate of default, then draws synchronous setting parameter according to the sound and determine the frame number delayed, delayed according to described
Frame number by the described image data after image procossing delay output to display equipment；When described image data frame per second with
When the play frame rate of default is not identical, drawn according to the frame per second of described image data, the play frame rate of the default and the sound
Synchronous setting parameter calculates the frame number delayed, and is prolonged the described image data after image procossing according to the frame number delayed
After export.
9. sound according to claim 8 draws synchronizing device, which is characterized in that the frame number delayed meets following condition:
N* (1000/F) > Ta ', wherein N is the frame number delayed, and the F is the frame per second of described image data, and Ta ' is institute
It states power amplifying device and handles delay caused by the audio data.
10. a kind of display equipment, which is characterized in that draw synchronizing device including sound as claim in any one of claims 6-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962929.0A CN109167890B (en) | 2018-08-22 | 2018-08-22 | Sound and picture synchronization method and device and display equipment |
| PCT/CN2019/101475 WO2020038344A1 (en) | 2018-08-22 | 2019-08-20 | Method and device for audio and video synchronization, and display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962929.0A CN109167890B (en) | 2018-08-22 | 2018-08-22 | Sound and picture synchronization method and device and display equipment |
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| CN109167890A true CN109167890A (en) | 2019-01-08 |
| CN109167890B CN109167890B (en) | 2021-03-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020038344A1 (en) * | 2018-08-22 | 2020-02-27 | 青岛海信电器股份有限公司 | Method and device for audio and video synchronization, and display apparatus |
| CN111479154A (en) * | 2020-04-03 | 2020-07-31 | 海信视像科技股份有限公司 | Equipment and method for realizing sound and picture synchronization and computer readable storage medium |
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| CN113132769A (en) * | 2020-01-15 | 2021-07-16 | 海信视像科技股份有限公司 | Display device and sound and picture synchronization method |
| CN113301410A (en) * | 2021-04-30 | 2021-08-24 | 西安诺瓦星云科技股份有限公司 | Audio picture synchronization method, device and system and transmission controller |
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| Publication number | Publication date |
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| CN109167890B (en) | 2021-03-05 |
| WO2020038344A1 (en) | 2020-02-27 |
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