CN106375824B - A kind of clock adjustment, device, terminal and multimedia synchronous play system - Google Patents
A kind of clock adjustment, device, terminal and multimedia synchronous play system Download PDFInfo
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- CN106375824B CN106375824B CN201610882881.3A CN201610882881A CN106375824B CN 106375824 B CN106375824 B CN 106375824B CN 201610882881 A CN201610882881 A CN 201610882881A CN 106375824 B CN106375824 B CN 106375824B
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- 238000000034 method Methods 0.000 claims description 16
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Classifications
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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
- H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/04—Time compression or expansion
- G10L21/055—Time compression or expansion for synchronising with other signals, e.g. video signals
-
- 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
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
-
- 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
- H04N21/4222—Remote control device emulator integrated into a non-television apparatus, e.g. a PDA, media center or smart toy
-
- 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
-
- 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
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
-
- 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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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Electric Clocks (AREA)
Abstract
An embodiment of the present invention provides a kind of clock adjustment, device, terminal and multimedia synchronous play systems；The embodiment of the present invention is used during multi-medium data is played, obtain the time error between system clock and reference clock, then, the adjusting information for determining to be adjusted according to the time error, whether detect in the multi-media signal of currently playing output has human voice signal, if it is not, then the system clock is adjusted according to the adjusting information, so that the time error is zero；The program plays multimedia synchronism between can improving multimedia play equipment.
Description
Technical field
The present invention relates to technical field is played simultaneously, and in particular to a kind of clock adjustment, device, terminal and multimedia
Synchronous playing system.
Background technology
With the improvement of living standards, home audio-visual devices play important role in people's lives.Currently, will
Multiple multimedia play equipments (for example, speaker, player etc.) and control device are interconnected by wired or wireless network,
A multimedia play system is formed, identical multimedia such as music is played simultaneously, has been widely used.
In above-mentioned multimedia play system, each multimedia play equipment has independent clock system.Each broadcasting
Equipment plays multimedia according to the clock system of its own.However, each multimedia play equipment and reference device are (general
Equipment in order to control) clock system it is not always synchronous.Each playback equipment and reference device each other there may be
The subtle time difference.When multiple multimedia play equipments play identical multimedia such as music, the above-mentioned subtle time difference causes respectively
The playing progress rate of a multimedia play equipment is inconsistent, thereby result in improve play between multimedia play equipment it is multimedia same
Step property is than relatively low.
The content of the invention
The embodiment of the present invention provides a kind of clock adjustment, device, terminal and multimedia synchronous play system, Ke Yiti
Multimedia synchronism is played between high multimedia play equipment.
The embodiment of the present invention provides a kind of clock adjustment, including：
During multi-medium data is played, the time error between system clock and reference clock is obtained；
The adjusting information for determining to be adjusted according to the time error；
Whether detect in the multi-media signal of currently playing output has human voice signal；
If it is not, then the system clock is adjusted according to the adjusting information, so that the time error is zero.
Correspondingly, the embodiment of the present invention also provides a kind of clock adjustment apparatus, including：
Acquiring unit, for during multi-medium data is played, obtain between system clock and reference clock when
Between error；
Determination unit, for the adjusting information for determining to be adjusted according to the time error；
Detection unit, for detecting in the multi-media signal of currently playing output whether have human voice signal；
Adjustment unit, for detection unit detection there is no human voice signal when, according to it is described adjusting information to the system
Clock is adjusted, so that the time error is zero.
Correspondingly, the embodiment of the present invention also provides a kind of terminal, including：
It is stored with the memory of executable program code；
The processor coupled with the memory；
The processor calls the executable program code stored in the memory, performs the embodiment of the present invention and carries
Any clock adjustment supplied.
Correspondingly, the embodiment of the present invention additionally provides a kind of multimedia synchronous play system, including：Control device and at least
One playback equipment；The control device is connected with the playback equipment；The playback equipment is used to perform the embodiment of the present invention
Any clock adjustment provided.
The embodiment of the present invention is used during multi-medium data is played, and is obtained between system clock and reference clock
Time error, then, according to the adjusting information that the time error determines to be adjusted, the multimedia for detecting currently playing output is believed
Whether there is human voice signal in number, if it is not, then the system clock is adjusted according to the adjusting information, so that the time error
It is zero.During the program can be with multimedia, and system clock is adjusted in nobody's voice output, so that being
Clock of uniting is synchronous with reference clock, and then multimedia effect is played simultaneously in multiple playback equipments, compared with the prior art
For, it can improve and play multimedia synchronism between multimedia play equipment.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.It should be evident that the accompanying drawings in the following description is only some embodiments of the present invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the flow diagram for the clock adjustment that the embodiment of the present invention one provides.
Fig. 2 is the flow diagram of clock adjustment provided by Embodiment 2 of the present invention.
Fig. 3 is the structure diagram for the first clock adjustment apparatus that the embodiment of the present invention three provides.
Fig. 4 is the structure diagram for second of clock adjustment apparatus that the embodiment of the present invention three provides.
Fig. 5 is the structure diagram for the third clock adjustment apparatus that the embodiment of the present invention three provides.
Fig. 6 is the schematic diagram of a scenario for the multimedia synchronous play system that the embodiment of the present invention four provides.
Fig. 7 is the structure diagram for the terminal that the embodiment of the present invention five provides.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained without creative efforts
Example, belongs to the scope of protection of the invention.
Term " first ", " second ", " the 3rd " in description and claims of this specification and above-mentioned attached drawing etc.
(if present) is the object for distinguishing similar, without being used to describe specific order or precedence.It should be appreciated that this
The object of sample description can exchange in the appropriate case.In addition, term " comprising " and " having " and their any deformation, meaning
Figure is to cover non-exclusive include.For example, it contains the process of series of steps, method or contains a series of modules or list
The device of member, terminal, system are not necessarily limited to those steps clearly listed or module or unit, can also include unclear
The step of ground is listed or module or unit can also be included for intrinsic its of these processes, method, apparatus, terminal or system
Its step or module or unit.
The embodiment of the present invention provides a kind of clock adjustment, device, terminal and multimedia synchronous play system, below will
It is described in detail respectively.
Embodiment one
The clock adjustment apparatus, which will be described, from the angle of clock adjustment apparatus in the present embodiment can specifically integrate broadcasting
In equipment, which can be the playback equipments such as terminal (smart mobile phone, tablet computer etc.), speaker.
A kind of clock adjustment, including：During multi-medium data is played, system clock and reference clock are obtained
Between time error, then, according to the adjusting information that the time error determines to be adjusted, detect the more of currently playing output
Whether have human voice signal in media signal, if it is not, then the system clock is adjusted according to the adjusting information so that this when
Between error be zero.
As shown in Figure 1, the clock adjustment, idiographic flow can include：
101st, during multi-medium data is played, the time error between system clock and reference clock is obtained.
Wherein, which can be voice data, audio, video data etc..The voice data includes but is not limited to
CD、WAV、MP3(Moving Picture Experts Group Audio Layer III)、WMA(Windows Media
The voice data of forms such as Audio).
The reference clock can be the system clock of reference device, which is the reference device being played simultaneously, than
It such as, can equipment or playback equipment in order to control.In practical applications, can be chosen according to actual demand from playback equipment
One equipment is used as with reference to equipment.
Specifically, step " obtaining the time error between system clock and reference clock " can include：
Obtain the reference device current the first system time；
Obtain itself current second system time；
According to second system time and the first system time, the time error between system clock and reference clock is obtained.
For example, the time difference between second system time and the first system time can be calculated, which is
Time error between system clock and reference clock；Time difference between the second system time and the first system time refers to
Be that the second system time is subtracted into the time difference that the first system time obtains.
In other embodiments, the time difference of the first system time and second system time can be also obtained, i.e., by
One system time subtracts the time difference obtained the second system time.
Wherein, obtain the current system time of reference device mode can there are many, for example, reference device can be asked
Send its current system time or reference device active push.
102nd, the adjusting information being adjusted is determined according to the time error.
The adjusting information can be the adjustment parameter being adjusted in synchronism, and can include：Adjust direction and regulated quantity or
Only include regulated quantity.
Wherein, positive direction or negative direction can be included by adjusting direction, and positive direction adjusting is to speed up system clock, losing side
It is to slow down system clock to adjusting.Can also be：Negative direction adjusting is to speed up system clock, and positive direction adjusting is when slowing down system
Clock；It can specifically be set according to actual demand.
Specifically, it is the time difference of itself current time and reference device current time in time error, positive direction tune
Section is to speed up system clock, and negative direction adjusting is in the case of slowing down system clock, if time error is more than zero, determines same step
The adjusting direction of section is negative direction, that is, needs to slow down the system clock of itself；If time error is less than zero, determine that adjusting direction is
Positive direction needs to accelerate the system clock of itself.
Wherein, which can be the absolute value of time error, for example, when time error is 20ms, regulated quantity 20ms,
When time error is -30ms, regulated quantity 30ms.
Whether the 103rd, detect in the multi-media signal of currently playing output has human voice signal, if it is not, step 104 is then performed,
If so, return to step 103 continues to detect.
Wherein, the voice signal that human voice signal's behaviour is sent；Multi-media signal can include in the present embodiment：Picture signal
And/or voice signal.
Whether in the present embodiment, can in real time or dynamically detect in the multi-media signal of currently playing output has voice
Signal.
That is, the step be in the multi-media signal for detect currently playing output whether the voice signal that someone sends.
In the present embodiment, detect whether have in the multi-media signal of currently playing output human voice signal mode can have it is more
Kind, it is as follows：
(1), detected based on the frequency domain information of signal.
Since voice is concentrated mainly on specific frequency domain, frequency-domain analysis can be carried out to multi-media signal, according to more matchmakers
The frequency domain information of body signal detects voice；Namely whether " detect in the multi-media signal of currently playing output has voice to step
Signal " can include：
Frequency-domain analysis is carried out to the multi-media signal of currently playing output, obtains the frequency domain information of multi-media signal；
Judge whether the frequency domain information matches with default voice frequency domain information；
If matching, it is determined that have human voice signal in the multi-media signal of currently playing output；
It if mismatches, it is determined that there is no human voice signal in the multi-media signal of currently playing output.
Wherein, the frequency domain information of multi-media signal can include the information such as frequency, the frequency band of signal.Default voice frequency domain letter
The voice frequency domain information that breath can be obtained according to frequency-domain analysis is carried out to sample human voice signal.
(2), detected based on speech recognition technology.
Since human voice signal can be identified in speech recognition technology, corresponding content is obtained, then if multimedia
There is human voice signal in signal, the corresponding content of voice can be identified by speech recognition, such as corresponding text information.Cause
This, can detect in multi-media signal whether have human voice signal by speech recognition.Namely step " detects currently playing output
Multi-media signal in whether have human voice signal " can include：
Speech recognition is carried out to the multi-media signal of currently playing output, obtains voice content；
When the voice content is not empty, determine there is human voice signal in the multi-media signal of currently playing output；
When the voice content is empty, determine there is no human voice signal in the multi-media signal of currently playing output.
(3), detected based on image identification.
When multi-medium data is video data, it can determine whether multi-media signal has voice letter by image identification
Number；Specifically, step " whether detect in the multi-media signal of currently playing output has human voice signal " may include：
Image identification is carried out to the multi-media signal of currently playing output, obtains image recognition result.
Detect in the multi-media signal of currently playing output whether have human voice signal according to image recognition result.
When image recognition result meets preset condition, determine there is voice letter in the multi-media signal of currently playing output
Number, otherwise determine no human voice signal.For example, when the image identified includes personage, it is determined that have human voice signal, and compare
Such as, when identify image include subtitle when then determined human voice signal etc..
(4), detected based on track.
Due to there is the audio track data of special voice (dialogue, libretto) in media file, it can be by detecting more matchmakers
Whether volume data determines whether voice comprising audio track data.Namely step " detects the multi-media signal of currently playing output
In whether have human voice signal " can include：
Whether detect in currently playing multi-medium data has audio track data；
If so, then there is human voice signal in the multi-media signal of definite currently playing output；
If do not have, it is determined that there is no human voice signal in the multi-media signal of currently playing output.
It should be understood that：Detect whether that the mode of human voice signal is not limited only to the side of above-mentioned introduction in the present embodiment
Formula can also be other modes.
104th, the system clock is adjusted according to the adjusting information, so that the time error is zero.
Specifically, system clock can be adjusted according to adjusting direction and regulated quantity.It for example, will according to direction is adjusted
System clock adjusts a regulated quantity；System clock is such as made to accelerate a default adjusting step-length, such as accelerates 10ms.
For example, when clocking error is 10ms, regulated quantity can be 10ms, and adjustings direction is negative direction, then can be by
System clock is adjusted into 10ms according to negative direction, even if system clock slows down 10ms.
Optionally, in order to avoid disposable regulating system clock reduces multimedia output quality, the present embodiment can basis
It adjusts direction and regulated quantity repeatedly adjusts system clock, so that the time error is zero.
For example, can according to regulated quantity (being at this time total regulated quantity), adjust direction and default regulated quantity to system clock into
Row is repeatedly adjusted.Default regulated quantity can be set according to actual demand, for example, can be 10ms, 20ms, 1s etc..
For example, time error is 15ms, it, can be first default according to direction adjusting one is adjusted when default regulated quantity is 5ms
Then regulated quantity 5ms is spaced after preset time period again according to one default regulated quantity 5ms of direction adjusting is adjusted, so again
After adjusting three times, you can so that time error is zero.
Optionally, to improve the accuracy that clock is adjusted, and then the synchronism between system clock and reference clock is improved；
The present embodiment can constantly obtain time error between system clock and reference clock every certain time length, therefore, not have
When having human voice signal, can information (as adjusted direction and regulated quantity) be adjusted according to the time error update obtained again.Namely
The present embodiment method further includes：When obtaining the time error between system clock and reference clock, start timing；
At this point, when having human voice signal in the multi-media signal of currently playing output, judge whether present timing duration is big
In preset duration；If so, the time error between system clock and reference clock is obtained again, according to the time error of acquisition
Update the adjusting information.
Therefore, the present embodiment constantly can cyclically obtain time error to refresh adjusting information, improve clock adjusting
Accuracy and promptness, and then improve the synchronism of media play.
Optionally, to improve the quality of the synchronism of media play and media play, in more matchmakers of currently playing output
When having human voice signal in body signal, the present embodiment can also adjust system when the corresponding voice content of human voice signal is specific content
System clock.Namely the present embodiment clock adjustment can also include：
When having human voice signal in the multi-media signal of currently playing output, the corresponding voice content of human voice signal is obtained；
Judge whether the voice content is preset content；
If so, the system clock is adjusted according to the adjusting information.
For example, when voice content is ad content, the system clock can be adjusted according to the adjusting information, this
When, adjusting is not easy to be perceived by the user, and the quality played on physical medium does not influence.
From the foregoing, it will be observed that the embodiment of the present invention is used during multi-medium data is played, system clock and reference are obtained
Then time error between clock, according to the adjusting information that the time error determines to be adjusted, detects currently playing output
Multi-media signal in whether have human voice signal, if it is not, then the system clock is adjusted according to the adjusting information so that
The time error is zero.During the program can be with multimedia, and system clock is adjusted in nobody's voice output
Section, so that system clock is synchronous with reference clock, and then multimedia effect is played simultaneously in multiple playback equipments, relatively
For the prior art, it can improve and play multimedia synchronism between multimedia play equipment.
In addition, the embodiment of the present invention can be exported with dynamic monitoring voice, system clock is carried out in nobody's voice output
It adjusts, the quality of multimedia can be improved, greatly improve user experience.
Embodiment two
According to one described clock adjustment of embodiment, citing is described in further detail below.
In the present embodiment, will be carried out so that one described clock adjustment apparatus of embodiment is integrated in playback equipment as an example in detail
Thin description.
As shown in Fig. 2, a kind of clock adjustment, idiographic flow are as follows：
201st, playback equipment obtains the time between system clock and reference clock during multi-medium data is played
Error, and start timing.
Wherein, which can be voice data, audio, video data etc..The form of the voice data has more
Kind, for example, MP3 format, WMA forms etc..
Specifically, when playback equipment obtains reference device current the first system time and itself current second system
Between, then, according to second system time and the first system time, obtain the time error between system clock and reference clock.
For example, the first system time is 1：06, the second system time is 1：00, time error can be obtained at this time as -6s.
202nd, playback equipment judges whether time error is zero, if it is not, step 203 is then performed, if so, performing step
207。
203rd, playback equipment determines to need the adjusting direction being adjusted and regulated quantity according to time error.
Wherein, positive direction or negative direction can be included by adjusting direction, and positive direction adjusting is to speed up system clock, losing side
It is to slow down system clock to adjusting.Wherein, which is the absolute value of time error.
If time error is more than zero, for negative direction, that is, need to slow down itself is in the adjusting direction for determining to be adjusted in synchronism
System clock；If time error is less than zero, determine that it is positive direction to adjust direction, that is, needs to accelerate the system clock of itself.For example, when
Between error be -6s when, it may be determined that adjustings direction be positive direction, regulated quantity 6s.
204th, playback equipment detects in the multi-media signal of currently playing output whether have human voice signal, if it is not, then performing
Step 205, if so, whether having human voice signal in continuing to detect the multi-media signal of currently playing output, and step is performed
206。
Wherein, detect human voice signal mode can the mode based on frequency domain information, the mode based on speech recognition, be based on
The mode of track and based on image know otherwise.Specifically, detection process may be referred to the description of embodiment one, herein no longer
It repeats.
205th, playback equipment is adjusted system clock according to adjusting direction and regulated quantity, so that time error is
Zero, go to step 207.
For example, system clock is adjusted into a regulated quantity according to direction is adjusted；System clock is such as made to accelerate a default tune
Step-length is saved, such as accelerates 20ms.
Optionally, in order to avoid disposable regulating system clock reduces multimedia output quality, the present embodiment playback equipment
System clock can repeatedly be adjusted according to adjusting direction and regulated quantity, so that the time error is zero.Such as pass through five
Secondary adjusting makes time error be zero.
206th, playback equipment is more than predetermined threshold value in present timing value, obtains again between system clock and reference clock
Time error, and updated according to the time error and adjust direction and regulated quantity.
Wherein, predetermined threshold value is the time interval of detection time error twice, can be set according to actual demand, such as
1s, 3s etc..
207th, playback equipment is obtained between system clock and reference clock again when present timing value is more than predetermined threshold value
Time error, go to step 202.
When it is implemented, the present invention is not generating conflict from the limitation of the execution sequence of described each step
In the case of, some steps can also use other orders to carry out or be carried out at the same time.
From the foregoing, it will be observed that playback equipment of the embodiment of the present invention is during multi-medium data is played, obtain system clock with
Time error between reference clock, then, according to the adjusting information that the time error determines to be adjusted, detection is currently playing
Whether there is human voice signal in the multi-media signal of output, if it is not, then the system clock is adjusted according to the adjusting information, with
So that the time error is zero.During the program can be with multimedia, and in nobody's voice output to system clock into
Row is adjusted, so that system clock is synchronous with reference clock, and then multimedia effect is played simultaneously in multiple playback equipments,
In terms of existing technologies, it can improve and play multimedia synchronism between multimedia play equipment.
In addition, the embodiment of the present invention can be exported with dynamic monitoring voice, system clock is carried out in nobody's voice output
It adjusts, the quality of multimedia can be improved, greatly improve user experience.
Embodiment three
In order to preferably implement above method, the embodiment of the present invention also provides a kind of clock adjustment apparatus, which is adjusted
Device can be integrated in playback equipment, which can be the equipment such as smart mobile phone, tablet computer, speaker.
As shown in figure 3, clock adjustment apparatus 300 can include：Acquiring unit 301, determination unit 302, detection unit 303
And adjustment unit 304, it is as follows：
Acquiring unit 301, for during multi-medium data is played, obtaining between system clock and reference clock
Time error；
Determination unit 302, for the adjusting information for determining to be adjusted according to the time error；
Detection unit 303, for detecting in the multi-media signal of currently playing output whether have human voice signal；
Adjustment unit 304, for when the detection of detection unit 303 does not have human voice signal, being to this according to the adjusting information
System clock is adjusted, so that the time error is zero.
Wherein, there are many modes for detecting human voice signal, for example, the detection unit 303 can be specifically used for：
Frequency-domain analysis is carried out to the multi-media signal of currently playing output, obtains the frequency domain information of multi-media signal；
Judge whether the frequency domain information matches with default voice frequency domain information；
If matching, it is determined that have human voice signal in the multi-media signal of currently playing output.
For another example, which can be specifically used for：
Speech recognition is carried out to the multi-media signal of currently playing output, obtains voice content；
When the voice content is not empty, determine there is human voice signal in the multi-media signal of currently playing output；
When the voice content is empty, determine there is no human voice signal in the multi-media signal of currently playing output.
Optionally, with reference to figure 4, the present embodiment clock adjustment apparatus 300 can also include：Timing unit 305, first judges
Unit 306 and updating block 307；
Timing unit 305 during for obtaining the time error between system clock and reference clock in acquiring unit, starts
Timing；
First judging unit 306, for detect currently playing output in detection unit 303 multi-media signal in have voice
During signal, judge whether present timing duration is more than preset duration；
Updating block 307, for when the first judging unit 306 judges to be more than preset duration, obtaining system clock again
Time error between reference clock updates the adjusting information according to the time error of acquisition.
With reference to figure 5, the present embodiment clock adjustment apparatus 300 can also include：
Voice recognition unit 308 during for having human voice signal in the multi-media signal of currently playing output, obtains voice
The corresponding voice content of signal；
Second judgment unit 309, for judging whether the voice content is preset content；
The adjustment unit 304, is additionally operable to when second judgment unit 309 is judged as YES, and is to this according to the adjusting information
System clock is adjusted.
It when it is implemented, Yi Shang unit can be independent entity to realize, can also be combined, be made
It is realized for same or several entities, the specific implementation of more than unit can be found in the embodiment of the method for front, herein not
It repeats again.
From the foregoing, it will be observed that the embodiment of the present invention uses acquiring unit 301 to obtain system during multi-medium data is played
Time error between clock and reference clock, then, the tune for determining to be adjusted according to the time error by determination unit 302
Information is saved, whether have human voice signal, if it is not, then by adjusting if being detected by detection unit 303 in the multi-media signal of currently playing output
Section unit 304 is adjusted the system clock according to the adjusting information, so that the time error is zero.The program can be more
In media play process, and system clock is adjusted in nobody's voice output, so that system clock and reference clock
It is synchronous, and then multimedia effect is played simultaneously in multiple playback equipments, in terms of existing technologies, can improve more matchmakers
Multimedia synchronism is played between body playback equipment.
In addition, the embodiment of the present invention can be exported with dynamic monitoring voice, system clock is carried out in nobody's voice output
It adjusts, the quality of multimedia can be improved, greatly improve user experience.
Example IV
According to one and two described clock adjustment of embodiment, citing is described in further detail below.
In the present embodiment, it will be integrated in clock adjustment apparatus described by embodiment one, two and three in slave and be
Example is described in detail.
An embodiment of the present invention provides a kind of multimedia synchronous play systems, can include：Control device and at least one
Playback equipment；The control device is connected with the playback equipment and (such as passes through network connection)；The playback equipment is used to perform
Any clock adjustment that above-described embodiment provides.
Wherein, control device can be used as main control device, and playback equipment can be used as slave.
With reference to figure 6, a kind of multimedia synchronous play system is present embodiments provided, including：Source device 10, main control device
20th, at least one slave 30；It can mutually be interconnected by network between the source device 10, main control device 20, slave 30
It connects.
Wherein, main control device 20 is for controlling slave, can be terminal, such as mobile phone, tablet computer, the master control
Equipment or playback equipment, for example, the playback equipments such as speaker；The present embodiment will be carried out by main control device 20 exemplified by terminal
Explanation.
The slave 30 can be the playback equipment for being controlled by main control device 20, which can be speaker, tool
There are the playback equipments such as the terminal of playing function.
Wherein, source device 10, can be with network equipments such as servers for providing multi-medium data to be played.
Before multimedia is played simultaneously, the present embodiment can choose an equipment as same from multiple slaves 30
The reference device played is walked, during being played simultaneously, when the clock of all slaves is by the system with the reference device
Clock preserves synchronous.It is synchronously broadcast for example, a slave conduct can be chosen from multiple slaves 30 by main control device 20
Then the mark of reference device, is sent to each slave by the reference device put.
It should be noted that：If when media data of the main control device 20 in addition to distributing media data also received from status hair
During broadcasting, which is also slave.At this point it is possible to it is that equipment is broadcast in reference to choose main control device 20.
The flow of multimedia is as follows：
Source device 10 sends multi-medium data to main control device 20；Main control device 20 is packaged multi-medium data, obtains
To multiple media data packets；Main control device 20 sends media data packet to each slave 30；30 buffered media of slave
Data packet and the media data packet for playing caching.Slave 30 performs what one and two described clock of embodiment was adjusted afterwards
Step.Details are not described herein again.
From the foregoing, it will be observed that the embodiment of the present invention uses slave 30 to obtain system during multi-medium data is played
Time error between clock and reference clock, then, according to the adjusting information that the time error determines to be adjusted, detection is worked as
Whether there is human voice signal in the preceding multi-media signal for playing output, if it is not, then being carried out according to the adjusting information to the system clock
It adjusts, so that the time error is zero.During the program can be with multimedia, and in nobody's voice output to system
Clock is adjusted, so that system clock is synchronous with reference clock, and then multimedia is played simultaneously in multiple playback equipments
Effect, in terms of existing technologies, can improve and play multimedia synchronism between multimedia play equipment.
In addition, slave of the embodiment of the present invention 30 can be exported with dynamic monitoring voice, in nobody's voice output to being
System clock is adjusted, and can improve the quality of multimedia, greatly improve user experience.
Embodiment five
The embodiment of the present invention also provides a kind of terminal, as shown in fig. 7, the terminal 400 can include radio frequency (RF, Radio
Frequency) circuit 401, include memory 402, the input unit of one or more computer readable storage mediums
403rd, display unit 404, sensor 405, voicefrequency circuit 406, Wireless Fidelity (WiFi, Wireless Fidelity) module
407th, including there are one or the processor 408 of more than one processing core and the components such as power supply 409.People in the art
Member it is appreciated that in Fig. 7 the terminal structure that shows not structure paired terminal restriction, can include more more or fewer than illustrating
Component either combines some components or different components arrangement.
Radio circuit 401 can be used for receiving and sending messages or communication process in signal send and receive, particularly, by base station
Downlink information receive after, transfer to one or more than one processor 408 handled；In addition, the data sending that uplink will be related to
To base station.In general, radio circuit 401 includes but not limited to antenna, at least one amplifier, tuner, one or more vibrations
Device, subscriber identity module (SIM, Subscriber Identity Module) card, transceiver, coupler, low noise amplification
Device (LNA, Low Noise Amplifier), duplexer etc..In addition, radio circuit 401 can also pass through wireless communication and network
It communicates with other equipment.The wireless communication can use any communication standard or agreement, include but not limited to global system for mobile telecommunications
System (GSM, Global System of Mobile communication), general packet radio service (GPRS, General
Packet Radio Service), CDMA (CDMA, Code Division Multiple Access), wideband code division it is more
Location (WCDMA, Wideband Code Division Multiple Access), Long Term Evolution (LTE, Long Term
Evolution), Email, Short Message Service (SMS, Short Messaging Service) etc..
Memory 402 can be used for storage application program and data.Include and can hold in the application program that memory 402 stores
Line program code.Application program can form various functions module.Processor 408 is stored in answering for memory 402 by operation
With program, so as to perform various functions application and data processing.Memory 402 can mainly include storing program area and storage number
According to area, wherein, storing program area can storage program area, (for example sound plays work(to the application program needed at least one function
Energy, image player function etc.) etc.；Storage data field can store according to terminal use created data (such as voice data,
Phone directory etc.) etc..In addition, memory 402 can include high-speed random access memory, non-volatile memories can also be included
Device, for example, at least a disk memory, flush memory device or other volatile solid-state parts.Correspondingly, memory
402 can also include Memory Controller, to provide the access of processor 408 and input unit 403 to memory 402.
Input unit 403 can be used for receive input number, character information or user's characteristic information (such as fingerprint) and
Generate the keyboard related with user setting and function control, mouse, operation lever, optics or the input of trace ball signal.Specifically
Ground, input unit 403 can include fingerprint recognition module.In some embodiments, input unit 403 can also include touch-sensitive table
Face.Touch sensitive surface, also referred to as touch display screen or Trackpad, collect user on it or neighbouring touch operation (such as
User uses the operations of any suitable object or attachment on touch sensitive surface or near touch sensitive surface such as finger, stylus), and
Corresponding attachment device is driven according to preset formula.Optionally, touch sensitive surface may include touch detecting apparatus and touch
Two parts of controller.Wherein, the touch orientation of touch detecting apparatus detection user, and the signal that touch operation is brought is detected,
Transmit a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and is converted into touching
Point coordinates, then processor 408 is given, and the order that processor 408 is sent can be received and performed.Furthermore, it is possible to using electricity
The polytypes such as resistive, condenser type, infrared ray and surface acoustic wave realize touch sensitive surface.Except touch sensitive surface, input unit 403
It can also include other input equipments.Specifically, other input equipments can include but is not limited to physical keyboard, function key (ratio
Such as volume control button, switch key), trace ball, mouse, the one or more in operation lever etc..
Display unit 404 is various available for the information and terminal for showing by information input by user or being supplied to user
Graphical user interface, these graphical user interface can be made of figure, text, icon, video and its any combination.Display
Unit 404 may include display panel.Optionally, may be employed liquid crystal display (LCD, Liquid Crystal Display),
The forms such as Organic Light Emitting Diode (OLED, Organic Light-Emitting Diode) configure display panel.Further
, touch sensitive surface can cover display panel, when touch sensitive surface is detected on it or after neighbouring touch operation, send processing to
Device 408 is followed by subsequent processing device 408 and is provided on a display panel accordingly according to the type of touch event to determine the type of touch event
Visual output.Although in the figure 7, touch sensitive surface and display panel are the components independent as two to realize input and input
Function, but in some embodiments it is possible to touch sensitive surface and display panel are integrated and realizes and outputs and inputs function.
Terminal may also include at least one sensor 405, such as optical sensor, motion sensor and other sensors.
Specifically, optical sensor may include ambient light sensor and proximity sensor, wherein, ambient light sensor can be according to ambient light
Light and shade adjust the brightness of display panel, proximity sensor can close display panel and/or the back of the body when terminal is moved in one's ear
Light.As one kind of motion sensor, gravity accelerometer can detect in all directions (generally three axis) acceleration
Size can detect that size and the direction of gravity when static, available for identification mobile phone posture application (such as horizontal/vertical screen switching,
Dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；It can also configure as terminal
The other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared ray sensor, details are not described herein.
Voicefrequency circuit 406 can provide the audio interface between user and terminal by loud speaker, microphone.Voicefrequency circuit
The voice data received can be converted into electric signal by 406, be transferred to loud speaker, and voice signal output is converted to by loud speaker；
On the other hand, the voice signal of collection is converted to electric signal by microphone, and audio number is converted to after being received by voicefrequency circuit 406
According to then after voice data output processor 408 is handled, through radio circuit 401 to be sent to such as another terminal or by sound
Frequency is according to output to memory 402 to be further processed.Voicefrequency circuit 406 is also possible that earphone jack, to provide peripheral hardware
The communication of earphone and terminal.
Wireless Fidelity (WiFi) belongs to short range wireless transmission technology, and terminal can be helped by wireless fidelity module 407
User sends and receive e-mail, browses webpage and access streaming video etc., it has provided wireless broadband internet to the user and has accessed.
Although Fig. 7 shows wireless fidelity module 407, but it is understood that, and must be configured into for terminal is not belonging to, completely may be used
To be omitted as needed in the scope of essence for not changing invention.
Processor 408 is the control centre of terminal, using various interfaces and the various pieces of the entire terminal of connection, is led to
It crosses operation or performs the application program being stored in memory 402 and call the data being stored in memory 402, perform
The various functions of terminal and processing data, so as to carry out integral monitoring to terminal.Optionally, processor 408 may include one or
Multiple processing cores；Preferably, processor 408 can integrate application processor and modem processor, wherein, application processor
Main processing operation system, user interface and application program etc., modem processor mainly handles wireless communication.It is appreciated that
, above-mentioned modem processor can not also be integrated into processor 408.
Terminal is further included to the power supply 409 (such as battery) of all parts power supply.Preferably, power supply can pass through power supply pipe
Reason system and processor 408 are logically contiguous, so as to realize management charging, electric discharge and power managed by power-supply management system
Etc. functions.Power supply 409 can also include one or more direct current or AC power, recharging system, power failure inspection
The random components such as slowdown monitoring circuit, power supply changeover device or inverter, power supply status indicator.
Although not shown in Fig. 7, terminal can also include camera, bluetooth module etc., and details are not described herein.
Specifically in the present embodiment, the processor 408 in terminal can be according to following instruction, will be one or more
The corresponding executable program code of process of application program is loaded into memory 402, and is stored in by processor 408 to run
Application program in memory 402, so as to fulfill various functions：
During multi-medium data is played, the time error between system clock and reference clock, then, root are obtained
Whether according to the adjusting information that the time error determines to be adjusted, detecting has voice letter in the multi-media signal of currently playing output
Number, if it is not, then the system clock is adjusted according to the adjusting information, so that the time error is zero.
Preferably, whether there is human voice signal in the multi-media signal of the currently playing output of detection, including：
Frequency-domain analysis is carried out to the multi-media signal of currently playing output, obtains the frequency domain information of multi-media signal；
Judge whether the frequency domain information matches with default voice frequency domain information；
If matching, it is determined that have human voice signal in the multi-media signal of currently playing output.
Preferably, whether there is human voice signal in the multi-media signal of the currently playing output of detection, including：
Speech recognition is carried out to the multi-media signal of currently playing output, obtains voice content；
When the voice content is not empty, determine there is human voice signal in the multi-media signal of currently playing output；
When the voice content is empty, determine there is no human voice signal in the multi-media signal of currently playing output.
Preferably, processor 408 also realizes following functions：
When obtaining the time error between system clock and reference clock, start timing；
When having human voice signal in the multi-media signal of currently playing output, it is default to judge whether present timing duration is more than
Duration；
If so, the time error between system clock and reference clock is obtained again, according to the time error of acquisition more
The new adjusting information.
Preferably, processor 408 also realizes following functions：
When having human voice signal in the multi-media signal of currently playing output, the corresponding voice content of human voice signal is obtained；
Judge whether the voice content is preset content；
If so, the system clock is adjusted according to the adjusting information.
Aforesaid operations for details, reference can be made to the embodiment of the method for front, and details are not described herein.
From the foregoing, it will be observed that an embodiment of the present invention provides a kind of terminal, which obtains during multi-medium data is played
The time error between system clock and reference clock is taken, then, according to the adjusting information that the time error determines to be adjusted,
Whether have human voice signal, if it is not, during then according to the adjusting information to the system if detecting in the multi-media signal of currently playing output
Clock is adjusted, so that the time error is zero.During the program can be with multimedia, and in nobody's voice output
System clock is adjusted, so that system clock is synchronous with reference clock, and then multiple playback equipments are played simultaneously
Multimedia effect in terms of existing technologies, can improve and play multimedia synchronism between multimedia play equipment.
It should be noted that one of ordinary skill in the art will appreciate that whole in the various methods of above-described embodiment or
Part steps are relevant hardware can be instructed to complete by program, which can be stored in computer-readable storage medium
In matter, storage medium can include：Read-only memory (ROM, Read Only Memory), random access memory (RAM,
Random Access Memory), disk or CD etc..
A kind of clock adjustment, device, terminal and the multimedia synchronous provided above the embodiment of the present invention plays
System is described in detail, and specific case used herein is set forth the principle of the present invention and embodiment, with
The explanation of upper embodiment is only intended to help the method and its core concept for understanding the present invention；Meanwhile for the technology of this field
Personnel, thought according to the invention, there will be changes in specific embodiments and applications, in conclusion this theory
Bright book content should not be construed as limiting the invention.
Claims (13)
1. a kind of clock adjustment, which is characterized in that the playback equipment suitable for multimedia synchronous play system, including：
During multi-medium data is played, obtain reference device current the first system time and itself current second
System time；
The time difference between the second system time and the first system time is calculated, obtains its own system clock and ginseng
Examine the time error between clock, the reference clock is the system clock of the reference device, its own system time with
Time error between reference clock is the time difference；
According to the adjusting information that the time error determines to be adjusted, the adjusting information includes adjusting direction and adjusting
Amount；
Whether in the multi-media signal of currently playing output have human voice signal, the sound letter that human voice signal's behaviour is sent if detecting
Number；
If it is not, then system clock is repeatedly adjusted according to the regulated quantity, the adjusting direction and default regulated quantity, so that
It is zero to obtain the time error.
2. clock adjustment as described in claim 1, which is characterized in that the multimedia letter of the currently playing output of detection
Whether there is human voice signal in number, including：
Frequency-domain analysis is carried out to the multi-media signal of currently playing output, obtains the frequency domain information of multi-media signal；
Judge whether the frequency domain information matches with default voice frequency domain information；
If matching, it is determined that have human voice signal in the multi-media signal of currently playing output.
3. clock adjustment as described in claim 1, which is characterized in that the multimedia letter of the currently playing output of detection
Whether there is human voice signal in number, including：
Speech recognition is carried out to the multi-media signal of currently playing output, obtains voice content；
When the voice content is not empty, determine there is human voice signal in the multi-media signal of currently playing output；
When the voice content is empty, determine there is no human voice signal in the multi-media signal of currently playing output.
4. clock adjustment as described in claim 1, which is characterized in that further include：When obtaining system clock with reference
During time error between clock, start timing；
When having human voice signal in the multi-media signal of currently playing output, when judging whether present timing duration is more than default
It is long；
If so, obtaining the time error between system clock and reference clock again, institute is updated according to the time error of acquisition
State adjusting information.
5. clock adjustment as described in claim 1, which is characterized in that further include：
When having human voice signal in the multi-media signal of currently playing output, the corresponding voice content of human voice signal is obtained；
Judge whether the voice content is preset content；
If so, the system clock is adjusted according to the adjusting information.
6. a kind of clock adjustment apparatus, which is characterized in that the playback equipment suitable for multimedia synchronous play system, including：
Acquiring unit, for during multi-medium data is played, obtain the reference device current the first system time and
Itself current second system time；The time difference between the second system time and the first system time is calculated,
The time error between its own system clock and reference clock is obtained, when the reference clock is the system of the reference device
Clock, the time error between its own system time and reference clock are the time difference；
Determination unit, for the adjusting information for determining to be adjusted according to the time error, the adjusting information includes adjusting
Direction and regulated quantity；
Detection unit, for detecting in the multi-media signal of currently playing output whether have human voice signal；
Adjustment unit, for when detection unit detection does not have human voice signal, according to the regulated quantity, the adjusting direction and pre-
If regulated quantity repeatedly adjusts system clock, so that the time error is zero.
7. clock adjustment apparatus as claimed in claim 6, which is characterized in that the detection unit is specifically used for：
Frequency-domain analysis is carried out to the multi-media signal of currently playing output, obtains the frequency domain information of multi-media signal；
Judge whether the frequency domain information matches with default voice frequency domain information；
If matching, it is determined that have human voice signal in the multi-media signal of currently playing output.
8. clock adjustment apparatus as claimed in claim 6, which is characterized in that the detection unit is specifically used for：
Speech recognition is carried out to the multi-media signal of currently playing output, obtains voice content；
When the voice content is not empty, determine there is human voice signal in the multi-media signal of currently playing output；
When the voice content is empty, determine there is no human voice signal in the multi-media signal of currently playing output.
9. clock adjustment apparatus as claimed in claim 6, which is characterized in that further include timing unit, the first judging unit with
And updating block；
Timing unit during for obtaining the time error between system clock and reference clock in acquiring unit, starts timing；
First judging unit, for detect currently playing output in detection unit multi-media signal in have human voice signal when, sentence
Whether disconnected present timing duration is more than preset duration；
Updating block, for when the first judging unit judges to be more than preset duration, obtaining system clock and reference clock again
Between time error, the adjusting information is updated according to the time error of acquisition.
10. clock adjustment apparatus as claimed in claim 6, which is characterized in that further include：
Voice recognition unit during for having human voice signal in the multi-media signal of currently playing output, obtains human voice signal couple
The voice content answered；
Second judgment unit, for judging whether the voice content is preset content；
The adjustment unit is additionally operable to when second judgment unit is judged as YES, according to it is described adjusting information to the system when
Clock is adjusted.
11. a kind of terminal, which is characterized in that including：
It is stored with the memory of executable program；
The processor coupled with the memory；
The processor calls the executable program stored in the memory, performs such as claim 1 to claim 5
Any one of them method.
12. a kind of multimedia synchronous play system, which is characterized in that including：Control device and at least one playback equipment；It is described
Control device is connected with the playback equipment；The playback equipment is for execution such as claim 1 to any one of claim 5 institute
The method stated.
13. a kind of computer readable storage medium, the computer program that storage is adjusted for clock, wherein, the computer
Program causes computer to perform the method as described in claim 1.
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: OPPO Guangdong Mobile Communications Co., Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: Guangdong Opel Mobile Communications Co., Ltd. |