CN106452643A - Playing control method and device, terminal and playing system - Google Patents
Playing control method and device, terminal and playing system Download PDFInfo
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- CN106452643A CN106452643A CN201610882823.0A CN201610882823A CN106452643A CN 106452643 A CN106452643 A CN 106452643A CN 201610882823 A CN201610882823 A CN 201610882823A CN 106452643 A CN106452643 A CN 106452643A
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- playback equipment
- audio data
- packets
- timestamp
- clocking error
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
- H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
- H04J3/0664—Clock or time synchronisation among packet nodes using timestamps unidirectional timestamps
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The embodiment of the invention provides a playing control method and device, a terminal and a playing system. The method comprises the steps of splitting audio data into a plurality of audio data packets, wherein the audio data comprises first time stamps; obtaining clock errors of playing devices; modifying the first time stamps contained in the audio data according to the clock errors, thereby obtaining the modified audio data packets; and sending the modified audio data packets to the playing devices. According to the scheme, the first time stamps contained in the audio data are modified according to the clock errors of the playing devices, the actual time of playing the modified audio data packets by the playing devices is the time corresponding to the first time stamps. When the plurality of playing devices carry out playing at the same time, the time of playing the same audio data packet by the plurality of playing devices is the same. Compared with the prior art, the method, the device, the terminal and the playing system have the advantage that the audio data playing synchronism among the plurality of playing devices can be improved.
Description
Technical field
The present invention relates to technical field of electronic equipment is and in particular to a kind of control method for playing back, device, terminal and broadcasting are
System.
Background technology
With growth in the living standard, audio-visual devices play important role in the life of people.Currently, will be multiple
Music player devices (for example, audio amplifier, player, mobile phone etc.) and control device are interconnected by wired or wireless network,
One Play System of composition, synchronous broadcasting identical music, it has been widely used.
In above-mentioned Play System, each equipment has independent system clock.Each playback equipment according to its own
System clock is playing music.However, the system clock of each playback equipment and control device is not always synchronous.Each
Playback equipment and control device there may be the trickle time difference each other.When identical music play by multiple playback equipments
When, the above-mentioned trickle time difference leads to the playing progress rate of each playback equipment inconsistent, thereby results between multiple playback equipments
Synchronism is low.
Content of the invention
The embodiment of the present invention provides a kind of control method for playing back, device, terminal and Play System, can improve multiple broadcastings
The synchronism of playing audio-fequency data between equipment.
The embodiment of the present invention provides a kind of control method for playing back, including：
Voice data is split into multiple packets of audio data, this packets of audio data includes very first time stamp；
Obtain the clocking error of playback equipment；
Change this very first time stamp in this packets of audio data according to this clocking error, to obtain amended voice data
Bag；
Send this amended packets of audio data to this playback equipment.
Accordingly, the embodiment of the present invention also provides a kind of broadcast control device, including：
Split module, for voice data is split into multiple packets of audio data, when this packets of audio data includes first
Between stab；
Acquisition module, for obtaining the clocking error of playback equipment；
Modified module, for changing the stamp of this very first time in this packets of audio data according to this clocking error, to be repaiied
Packets of audio data after changing；
Sending module, for sending this amended packets of audio data to this playback equipment.
Accordingly, the embodiment of the present invention also provides a kind of terminal, including：
Touch-screen, for the touch operation of receive user；
Be stored with the memory of executable program code；
The processor coupling with this memory；
This processor calls this executable program code of storage in this memory, executes above-mentioned control method for playing back.
The embodiment of the present invention also provides a kind of Play System, including broadcast control device and at least one playback equipment, should
Playback equipment is connected with this broadcast control device by network, and this broadcast control device includes：
Be stored with the memory of executable program code；
The processor coupling with this memory；
This processor calls this executable program code of storage in this memory, executes above-mentioned control method for playing back.
The embodiment of the present invention splits into multiple packets of audio data using by voice data, and this packets of audio data includes first
Timestamp；Obtain the clocking error of playback equipment；Change this very first time stamp in this packets of audio data according to this clocking error,
To obtain amended packets of audio data；Send this amended packets of audio data to this playback equipment.The program is according to broadcasting
The clocking error of equipment is modified to this very first time stamp in this packets of audio data, and amended packets of audio data is sent
To playback equipment, this playback equipment play real time of this amended packets of audio data for this very first time stamp corresponding when
Between.When multiple playback equipments are play simultaneously, the time that identical packets of audio data play by the plurality of playback equipment is identical, namely
Synchronous broadcasting can be kept between the plurality of playback equipment, in terms of existing technologies, can improve multiple playback equipments it
Between playing audio-fequency data synchronism.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, will make to required in embodiment description below
Accompanying drawing is briefly described.It should be evident that drawings in the following description are only some embodiments of the present invention, for
For those skilled in the art, on the premise of not paying creative work, can also be obtained other attached according to these accompanying drawings
Figure.
Fig. 1 is the schematic flow sheet of the control method for playing back that the embodiment of the present invention one provides.
Fig. 2 is the composition schematic diagram of the Play System in the embodiment of the present invention two.
Fig. 3 is the schematic flow sheet of the control method for playing back that the embodiment of the present invention two provides.
Fig. 4 is the structural representation of the first broadcast control device that the embodiment of the present invention three provides.
Fig. 5 is the structural representation of the second broadcast control device that the embodiment of the present invention three provides.
Fig. 6 is the structural representation of the third broadcast control device that the embodiment of the present invention three provides.
Fig. 7 is the structural representation of the first terminal that the embodiment of the present invention four provides.
Fig. 8 is the structural representation of the second terminal that the embodiment of the present invention four provides.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other enforcement that those skilled in the art are obtained under the premise of not making creative work
Example, broadly falls into the scope of protection of the invention.
Term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second ", " the 3rd " etc.
(if present) is for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that this
The object of sample description can exchange in the appropriate case.Additionally, term " comprising " and " having " and their any deformation, meaning
Figure is to cover non-exclusive comprising.For example, contain the process of series of steps, method or contain a series of modules or list
The device of unit, terminal, system are not necessarily limited to those steps or module or the unit clearly listed, and can also include unclear
The step listed or module or unit it is also possible to include for these processes, method, device, terminal or intrinsic its of system
Its step or module or unit.
The embodiment of the present invention provides a kind of control method for playing back, device, terminal and Play System, is carried out respectively below in detail
Describe in detail bright.
Embodiment one
The present embodiment will be described from the angle of broadcast control device, this device specifically can integrated in the terminal, should
Terminal can be the equipment such as smart mobile phone, panel computer.
A kind of control method for playing back, including：Voice data is split into multiple packets of audio data, wraps in this packets of audio data
Include very first time stamp；Obtain the clocking error of playback equipment；According to this clocking error change in this packets of audio data this first
Timestamp, to obtain amended packets of audio data；Send this amended packets of audio data to this playback equipment.
As shown in figure 1, this control method for playing back, idiographic flow can include：
S101, voice data is split into multiple packets of audio data, and this packets of audio data includes very first time stamp.
In concrete application, broadcast control device can transfer the audio frequency number in the memory being stored in this broadcast control device
According to.Broadcast control device can also obtain voice data by wired or wireless network at server or other-end.Play
Control device can also obtain voice data from the storage mediums such as CD.This voice data includes but is not limited to CD, WAV, MP3
The form such as (Moving Picture Experts Group Audio Layer III), WMA (Windows Media Audio)
Voice data.Electronic installation that this broadcast control device can be integrated in terminal or there is data processing work(
The playback equipment of energy.
After getting voice data, this voice data is split into multiple packets of audio data by broadcast control device.Split into
During multiple packets of audio data, this broadcast control device can add this audio frequency number of broadcasting in each packets of audio data splitting out
Very first time stamp according to bag.This very first time stamp can be that one still according to determined by the system clock of this broadcast control device
The time point not reached.
S102, obtains the clocking error of playback equipment.
Specifically, broadcast control device obtains the clocking error of playback equipment.This playback equipment can be that audio amplifier, music are broadcast
Put the equipment that device etc. has audio playing function.This playback equipment has independent system clock.This clocking error is this broadcasting
Time difference between the system clock of equipment and the system clock of this broadcast control device.
In certain embodiments, the clocking error obtaining playback equipment can specifically include following steps：
Send preset audio packet to playback equipment, this preset audio packet includes the second timestamp；
Receive the feedback information of this playback equipment, this feedback information plays according to this second timestamp for this playback equipment
Feedack after this preset audio packet；
Obtain the clocking error of this playback equipment according to this feedback information.
Specifically, broadcast control device sends preset audio packet to playback equipment.This preset audio packet is permissible
It is the section audio data in the memory be stored in advance in broadcast control device.This broadcast control device is sent out to this playback equipment
When giving this preset audio packet, transfer this preset audio packet from the memory of this broadcast control device, then to this
Add the second timestamp in preset audio packet.This second timestamp can be the system clock according to this broadcast control device
Determined by a not yet arrival time point.
In practical application, between this playback equipment and this broadcast control device, there may be the trickle time difference, therefore should
The system clock of playback equipment and the system clock of this broadcast control device not always identical.This playback equipment receives this
After the preset audio packet that broadcast control device sends, when the system clock of this playback equipment reaches this second timestamp,
Play this preset audio packet.In concrete application, because this preset audio packet is a default section audio data, not
It is the voice data required for user, when therefore this preset audio packet play by this playback equipment, can be only to this default sound
The actions such as frequency packet perform decoding, digital-to-analogue conversion, signal amplification, and the not signal after output interface output is amplified,
Sound is not exported by loudspeaker.After playing this preset audio packet, this playback equipment sends to this broadcast control device
Feedback information.This feedback information represents that this playback equipment has played this preset audio packet.This broadcast control device receives
The feedback information that this playback equipment sends.Subsequently, this broadcast control device according to this feedback information obtain this playback equipment when
Clock error.
In certain embodiments, this preset audio packet has predetermined time period, and being obtained according to this feedback information should
The clocking error of playback equipment can specifically include following steps：
This playback equipment is obtained according to this second timestamp and this predetermined time period and plays this preset audio packet
The theoretical deadline；
The actual finish time that this playback equipment plays this preset audio packet is obtained according to this feedback information；
Obtain the clocking error of this playback equipment according to this theoretical deadline and this actual finish time.
Specifically, this predetermined time period is to play the duration consuming required for this preset audio packet.For example, this is pre-
If time span is 500 milliseconds.In practical application, this second timestamp can be added this Preset Time by this broadcast control device
Length is as this theoretical deadline.For example, the moment of the second timestamp label be 1 point 10 seconds, predetermined time period be 500 milli
Second, then this theoretical deadline be 1 point 10.5 seconds.
This broadcast control device can record and receive this feedback information when receiving the feedback information of this playback equipment
Time.Due to being communicated by cable network or wireless network between broadcast control device and playback equipment, feedback information
Transmitted in the form of electric signal (voltage or electric current) or electromagnetic wave.And the transmission speed of electric signal and electromagnetic wave is quickly, electricity
The signal or electromagnetic wave passing time between broadcast control device and playback equipment is negligible.It is therefore contemplated that
The time that this broadcast control device receives this feedback information is the reality that this playback equipment plays this preset audio packet
The border deadline.
Subsequently, the clocking error of this playback equipment can be obtained according to this theoretical deadline and this actual finish time.
Specifically, this clocking error can be calculated according to below equation：
t0=t1-t2
Wherein, t0The clocking error calculating for need, t1For this theoretical deadline, t2For this actual finish time.Work as clock
Error t0It is on the occasion of, when that is, the theoretical deadline is ahead of actual finish time, the system clock representing playback equipment is than broadcasting
The system clock of control device is slow；As clocking error t0For negative value, that is, the theoretical deadline delay when actual finish time, table
Show that the system clock of playback equipment is faster than the system clock of broadcast control device；As clocking error t0During for 0, represent playback equipment
System clock identical with the system clock of broadcast control device, there is no clock between playback equipment and broadcast control device by mistake
Difference.
S103, changes this very first time stamp in this packets of audio data, to obtain amended sound according to this clocking error
Frequency packet.
In concrete application, after getting the clocking error of this playback equipment, this voice data is changed according to this clocking error
This very first time stamp in bag, to obtain amended packets of audio data.
In certain embodiments, this very first time stamp changed according to this clocking error in this packets of audio data can be concrete
Comprise the following steps：
3rd timestamp is obtained according to this very first time stamp and this clocking error；
This very first time stamp is revised as the 3rd timestamp.
Specifically, after getting the clocking error of this playback equipment, obtained according to this very first time stamp and this clocking error
3rd timestamp.After getting the 3rd timestamp, this very first time stamp is revised as the 3rd timestamp.This amended sound
Frequency packet includes the 3rd timestamp.3rd timestamp is the reproduction time of this amended packets of audio data.According to this
Very first time stamp and this clocking error obtain the 3rd timestamp and can specifically include following steps：
Calculate this very first time stamp and reduce the corresponding moment after this clocking error；
This moment is set to the 3rd timestamp.
Specifically, this moment can be calculated according to below equation：
T=t3-t0
Wherein, T stabs for this very first time and reduces corresponding moment, t after this clocking error3For this very first time stamp, t0For this
Clocking error.For example, very first time stamp t3Mark moment be 2 points 10 seconds, clocking error t0For 2 seconds, then the moment T that calculates
For 2 points 8 seconds.After calculating this moment T, this moment T is set to the 3rd timestamp.
S104, sends this amended packets of audio data to this playback equipment.
In concrete application, after obtaining amended packets of audio data, broadcast control device sends this to this playback equipment and repaiies
Packets of audio data after changing.After this playback equipment receives this amended packets of audio data of this broadcast control device transmission,
When the system clock of this playback equipment reaches three timestamps, play this amended packets of audio data.
Because broadcast control device is carried out to the very first time stamp in packets of audio data according to the clocking error of playback equipment
Modification, the 3rd timestamp is the corresponding moment after this clocking error of this very first time stamp minimizing.System when playback equipment
When the system clock of clock ratio broadcast control device is fast, this clocking error is negative value, now the 3rd timestamp be ahead of this
One timestamp.Playback equipment, when its own system clock reaches three timestamps, plays this amended packets of audio data, this
When broadcast control device system clock be this very first time stab the corresponding moment.When the system clock of playback equipment is controlled than playing
When the system clock of device processed is slow, this clocking error is on the occasion of now the 3rd timestamp is delayed in this very first time stamp.Play
Equipment, when its own system clock reaches three timestamps, plays this amended packets of audio data, now plays and controls dress
The system clock put remains as this very first time in the stamp corresponding moment.
Therefore, when multiple playback equipments are play simultaneously, identical amended audio frequency number play by the plurality of playback equipment
Real time according to bag is identical, all the moment corresponding to this very first time stamp in the system clock of this broadcast control device.Cause
This is it is ensured that realize synchronous broadcasting between the plurality of playback equipment.
When being embodied as, the present invention is not limited by the execution sequence of each described step, is not producing conflict
In the case of, some steps can also be carried out or be carried out simultaneously using other orders.
From the foregoing, it will be observed that control method for playing back provided in an embodiment of the present invention, split into multiple audio frequency using by voice data
Packet, this packets of audio data includes very first time stamp；Obtain the clocking error of playback equipment；Changed according to this clocking error
This very first time stamp in this packets of audio data, to obtain amended packets of audio data；Send this modification to this playback equipment
Packets of audio data afterwards.The program is carried out to this very first time stamp in this packets of audio data according to the clocking error of playback equipment
Modification, amended packets of audio data is sent to playback equipment, this amended packets of audio data play by this playback equipment
Real time stabs the corresponding time for this very first time.When multiple playback equipments are play simultaneously, the plurality of playback equipment is play
The time of identical packets of audio data is identical, namely can keep synchronous broadcasting between the plurality of playback equipment, with respect to existing
The synchronism of playing audio-fequency data between multiple playback equipments for technology, can be improved.
Embodiment two
Citing is described in further detail by control method for playing back according to described by embodiment one below.
In the present embodiment, specifically will be integrated in smart mobile phone with broadcast control device, based on the broadcasting system shown in Fig. 2
System is described in detail to the control method for playing back of the present embodiment.
As shown in Fig. 2 the composition schematic diagram for one of the present embodiment Play System.Play System by server 211,
Smart mobile phone 212 and multiple playback equipment 213 form.Server 211 can be in the server on network.Playback equipment
213 can be the equipment that audio amplifier, music player etc. have audio playing function.Smart mobile phone 212 passes through internet and service
Device 211 enters row data communication, so that smart mobile phone 212 can obtain voice data from server 211.Meanwhile, smart mobile phone
212 pass through wireless network (such as WiFi) enters row data communication, so that smart mobile phone 212 is permissible with multiple playback equipments 213
Send packets of audio data to playback equipment 213.
As shown in figure 3, control method for playing back, idiographic flow can be as follows：
S201, voice data is split into multiple packets of audio data, and this packets of audio data includes very first time stamp.
Specifically, smart mobile phone can obtain voice data by internet from server.This voice data include but not
It is limited to CD, WAV, MP3 (Moving Picture Experts Group Audio Layer III), WMA (Windows
Media Audio) etc. form voice data.After getting voice data, this voice data is split into multiple by smart mobile phone
Packets of audio data.When splitting into multiple packets of audio data, this smart mobile phone can add in each packets of audio data splitting out
Enter to play the very first time stamp of this packets of audio data.This very first time stamp can be true according to the system clock institute of this smart mobile phone
The time point of fixed one not yet arrival.
S202, sends preset audio packet to playback equipment, and this preset audio packet includes the second timestamp.
Specifically, smart mobile phone passes through wireless network (such as WiFi) to playback equipment transmission preset audio packet.Should
Preset audio packet can be the section audio data in the memory be stored in advance in smart mobile phone.This smart mobile phone is to this
When playback equipment sends this preset audio packet, transfer this preset audio packet from the memory of this smart mobile phone, so
Add the second timestamp in this preset audio packet backward.When this second timestamp can be the system according to this smart mobile phone
The time point of a not yet arrival determined by clock.This second timestamp is the reproduction time of this preset audio packet.
S203, receives the feedback information of this playback equipment, and this feedback information is this playback equipment according to this second timestamp
Play feedack after this preset audio packet.
Specifically, after playback equipment receives the preset audio packet of smart mobile phone transmission, in this playback equipment it is
When system clock reaches this second timestamp, play this preset audio packet.After playing this preset audio packet, this broadcasting
Equipment is to this smart mobile phone send feedback information.This feedback information represents that this playback equipment has played this preset audio data
Bag.This smart mobile phone receives the feedback information of this playback equipment transmission.
In practical application, because this preset audio packet is a default section audio data, it is not required for user
Voice data, when therefore this preset audio packet play by this playback equipment, can only this preset audio packet be executed
The actions such as decoding, digital-to-analogue conversion, signal amplification, and the not signal after output interface output is amplified, do not pass through loudspeaker yet
Output sound.
S204, obtains this playback equipment according to this second timestamp and predetermined time period and plays this preset audio data
The theoretical deadline of bag.
Specifically, this preset audio packet has predetermined time period.This predetermined time period is to play this default sound
The duration consuming required for frequency packet.For example, this predetermined time period is 500 milliseconds.In practical application, smart mobile phone is permissible
This second timestamp is added this predetermined time period as this theoretical deadline.For example, the moment of the second timestamp label
For 1 point 10 seconds, predetermined time period be 500 milliseconds, then this theoretical deadline be 1 point 10.5 seconds.
S205, obtains this playback equipment according to this feedback information and plays when actually accomplishing of this preset audio packet
Between.
Specifically, smart mobile phone can record and receive this feedback letter when receiving the feedback information of this playback equipment
The time of breath.Due to being communicated by wireless network (such as WiFi) between smart mobile phone and playback equipment, feedback information with
The form of electromagnetic wave is transmitted.And the transmission speed of electromagnetic wave is quickly, electromagnetic wave is between smart mobile phone and playback equipment
Passing time is negligible.It is therefore contemplated that the time that this smart mobile phone receives this feedback information is this broadcasting
The actual finish time of device plays this preset audio packet complete.
S206, obtains the clocking error of this playback equipment according to this theoretical deadline and this actual finish time.
Specifically, this clocking error can be calculated according to below equation：
t0=t1-t2
Wherein, t0The clocking error calculating for need, t1For this theoretical deadline, t2For this actual finish time.Work as clock
Error t0It is on the occasion of, when that is, the theoretical deadline is ahead of actual finish time, the system clock representing playback equipment is than intelligence
The system clock of mobile phone is slow；As clocking error t0For negative value, that is, the theoretical deadline delay when actual finish time, expression is broadcast
The system clock putting equipment is faster than the system clock of smart mobile phone；As clocking error t0During for 0, during the system of expression playback equipment
Clock is identical with the system clock of smart mobile phone, does not have clocking error between playback equipment and smart mobile phone.
S207, calculates this very first time stamp and reduces the corresponding moment after this clocking error.
Specifically, this moment can be calculated according to below equation：
T=t3-t0
Wherein, T stabs for this very first time and reduces corresponding moment, t after this clocking error3For this very first time stamp, t0For this
Clocking error.For example, very first time stamp t3Mark moment be 2 points 10 seconds, clocking error t0For 2 seconds, then the moment T that calculates
For 2 points 8 seconds.
S208, this moment is set to the 3rd timestamp.
Specifically, after calculating this moment T, this moment T is set to the 3rd timestamp.
S209, this very first time stamp is revised as the 3rd timestamp, to obtain amended packets of audio data.
Specifically, after getting the 3rd timestamp, by this very first time stamp in this packets of audio data be revised as this
Three timestamps, to obtain amended packets of audio data.This amended packets of audio data includes the 3rd timestamp.3rd
Timestamp is the reproduction time of this amended packets of audio data.
S210, sends this amended packets of audio data to this playback equipment.
Specifically, after obtaining amended packets of audio data, smart mobile phone sends this amended sound to this playback equipment
Frequency packet.After this playback equipment receives this amended packets of audio data of this smart mobile phone transmission, in this playback equipment
System clock when reaching three timestamps, play this amended packets of audio data.
Because smart mobile phone is repaiied to the very first time stamp in packets of audio data according to the clocking error of playback equipment
Change, the 3rd timestamp stabs for this very first time and reduces the corresponding moment after this clocking error.System clock when playback equipment
When faster than the system clock of smart mobile phone, this clocking error is negative value, and now the 3rd timestamp is ahead of this very first time stamp.
Playback equipment, when its own system clock reaches three timestamps, plays this amended packets of audio data, now intelligent hand
The system clock of machine stabs the corresponding moment for this very first time.When playback equipment system clock than smart mobile phone system clock
When slow, this clocking error is on the occasion of now the 3rd timestamp is delayed in this very first time stamp.Playback equipment is in its own system
When clock reaches three timestamps, play this amended packets of audio data, now the system clock of smart mobile phone remains as this
The very first time stabs the corresponding moment.
Therefore, when multiple playback equipments are play simultaneously, identical amended audio frequency number play by the plurality of playback equipment
Real time according to bag is identical, all the moment corresponding to this very first time stamp in the system clock of this smart mobile phone.Therefore, may be used
To ensure to realize synchronous broadcasting between the plurality of playback equipment.
When being embodied as, the present invention is not limited by the execution sequence of each described step, is not producing conflict
In the case of, some steps can also be carried out or be carried out simultaneously using other orders.
From the foregoing, it will be observed that control method for playing back provided in an embodiment of the present invention, split into multiple audio frequency using by voice data
Packet, this packets of audio data includes very first time stamp；Send preset audio packet to playback equipment；Set according to this broadcasting
Standby play the theoretical deadline of this preset audio packet and actual finish time obtains the clocking error of this playback equipment；
Change this very first time stamp in this packets of audio data according to this clocking error；Send amended voice data to playback equipment
Bag, this amended packets of audio data includes the 3rd timestamp.The program is according to the clocking error of playback equipment to this audio frequency
This very first time stamp in packet is modified, and amended packets of audio data is sent to playback equipment, this playback equipment
The real time playing this amended packets of audio data stabs the corresponding time for this very first time.When multiple playback equipments simultaneously
During broadcasting, the time that identical packets of audio data play by the plurality of playback equipment is identical, namely energy between the plurality of playback equipment
Enough holdings are synchronous to play, and in terms of existing technologies, can improve the synchronization of playing audio-fequency data between multiple playback equipments
Property.
Embodiment three
In order to preferably implement above method, the embodiment of the present invention also provides a kind of broadcast control device, and this device is permissible
Integrated in the terminal, this terminal can be the equipment such as smart mobile phone, panel computer.
As shown in figure 4, broadcast control device 300 can include：Split module 301, acquisition module 302, modified module
303rd, sending module 304, are described in detail below：
This fractionation module 301, for voice data is split into multiple packets of audio data, this packets of audio data includes
One timestamp；
This acquisition module 302, for obtaining the clocking error of playback equipment；
This modified module 303, for changing the stamp of this very first time in this packets of audio data according to this clocking error, with
To amended packets of audio data；
This sending module 304, for sending this amended packets of audio data to this playback equipment.
Preferably, this sending module 304 is additionally operable to：
Send preset audio packet to playback equipment, this preset audio packet includes the second timestamp；
As shown in figure 5, this acquisition module 302 includes：Receiving submodule 3021, the first acquisition submodule 3022, specifically such as
Under：
This receiving submodule 3021, for receiving the feedback information of this playback equipment, this feedback information is this playback equipment
Feedack after this preset audio packet is played according to this second timestamp；
This first acquisition submodule 3022, for obtaining the clocking error of this playback equipment according to this feedback information.
Preferably, this preset audio packet has predetermined time period, this first acquisition submodule 3022 specifically for：
This playback equipment is obtained according to this second timestamp and this predetermined time period and plays this preset audio packet
The theoretical deadline；
The actual finish time that this playback equipment plays this preset audio packet is obtained according to this feedback information；
Obtain the clocking error of this playback equipment according to this theoretical deadline and this actual finish time.
Preferably, as shown in fig. 6, this modified module 303 includes：Second acquisition submodule 3031, modification submodule 3032,
Specific as follows：
This second acquisition submodule 3031, for obtaining the 3rd timestamp according to this very first time stamp and this clocking error；
This modification submodule, for being revised as the 3rd timestamp by this very first time stamp.
Preferably, this second acquisition submodule 3031 specifically for：
Calculate this very first time stamp and reduce the corresponding moment after this clocking error；
This moment is set to the 3rd timestamp.
When being embodied as, above modules can be realized as independent entity it is also possible to be combined, and makees
To realize for same or several entities.Being embodied as of above modules can be found in embodiment of the method above, and here is not
Repeat again.
From the foregoing, it will be observed that broadcast control device 300 provided in an embodiment of the present invention, by splitting module 301 by voice data
Split into multiple packets of audio data, this packets of audio data includes very first time stamp；Acquisition module 302 obtain playback equipment when
Clock error；Modified module 303 changes this very first time stamp in this packets of audio data according to this clocking error, after being changed
Packets of audio data；Sending module 304 sends this amended packets of audio data to this playback equipment.The program sets according to broadcasting
Standby clocking error is modified to this very first time stamp in this packets of audio data, and amended packets of audio data is sent to
Playback equipment, this playback equipment play real time of this amended packets of audio data for this very first time stamp corresponding when
Between.When multiple playback equipments are play simultaneously, the time that identical packets of audio data play by the plurality of playback equipment is identical, namely
Synchronous broadcasting can be kept between the plurality of playback equipment, in terms of existing technologies, can improve multiple playback equipments it
Between playing audio-fequency data synchronism.
Example IV
The embodiment of the present invention also provides a kind of terminal, and this terminal can be the equipment such as smart mobile phone, panel computer.
As shown in fig. 7, terminal 400 can include：Split module 401, acquisition module 402, modified module 403, send mould
Block 404, is described in detail below：
This fractionation module 401, for voice data is split into multiple packets of audio data, this packets of audio data includes
One timestamp；
This acquisition module 402, for obtaining the clocking error of playback equipment；
This modified module 403, for changing the stamp of this very first time in this packets of audio data according to this clocking error, with
To amended packets of audio data；
This sending module 404, for sending this amended packets of audio data to this playback equipment.
Preferably, this sending module 404 is additionally operable to：
Send preset audio packet to playback equipment, this preset audio packet includes the second timestamp；
This acquisition module 402 includes：Receiving submodule, the first acquisition submodule, specific as follows：
This receiving submodule, for receiving the feedback information of this playback equipment, this feedback information be this playback equipment according to
This second timestamp plays feedack after this preset audio packet；
This first acquisition submodule, for obtaining the clocking error of this playback equipment according to this feedback information.
Preferably, this preset audio packet has predetermined time period, this first acquisition submodule specifically for：
This playback equipment is obtained according to this second timestamp and this predetermined time period and plays this preset audio packet
The theoretical deadline；
The actual finish time that this playback equipment plays this preset audio packet is obtained according to this feedback information；
Obtain the clocking error of this playback equipment according to this theoretical deadline and this actual finish time.
Preferably, this modified module 403 includes：Second acquisition submodule, modification submodule, specific as follows：
This second acquisition submodule, for obtaining the 3rd timestamp according to this very first time stamp and this clocking error；
This modification submodule, for being revised as the 3rd timestamp by this very first time stamp.
Preferably, this second acquisition submodule specifically for：
Calculate this very first time stamp and reduce the corresponding moment after this clocking error；
This moment is set to the 3rd timestamp.
Aforesaid operations specifically can be found in embodiment of the method above, will not be described here.
The embodiment of the present invention also provides another kind of terminal, as shown in figure 8, this terminal 500 can include radio frequency (RF, Radio
Frequency) circuit 501, the memory 502 including one or more computer-readable recording mediums, input block
503rd, display unit 504, sensor 505, voicefrequency circuit 506, Wireless Fidelity (WiFi, Wireless Fidelity) module
507th, the parts such as processor 508 and the power supply 509 of or more than one processing core are included.People in the art
Member, it is appreciated that the restriction of the terminal structure not structure paired terminal shown in Fig. 8, can include more more or less of than illustrating
Part, or combine some parts, or different part arrangements.
Radio circuit 501 can be used for receiving and sending messages, or the reception of signal and transmission in communication process, especially, by base station
Downlink information receive after, transfer to one or more than one processor 508 processed；In addition, up data is activation will be related to
To base station.Generally, radio circuit 501 includes but is not limited to antenna, at least one amplifier, tuner, one or more vibration
Device, subscriber identity module (SIM, Subscriber Identity Module) card, transceiver, coupler, low noise amplification
Device (LNA, Low Noise Amplifier), duplexer etc..Additionally, radio circuit 501 can also pass through radio communication and network
With other equipment communication.This radio communication can use arbitrary communication standard or agreement, including 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 many
Location (WCDMA, Wideband Code Division Multiple Access), Long Term Evolution (LTE, Long Term
Evolution), Email, Short Message Service (SMS, Short Messaging Service) etc..
Memory 502 can be used for storing application program data.Include and can hold in the application program of memory 502 storage
Line program code.Application program can form various functions module.Processor 508 passes through operation and is stored in answering of memory 502
With program, thus executing various function application and data processing.Memory 502 can mainly include storing program area and storage number
According to area, wherein, storing program area can application program needed for storage program area, at least one function (such as sound plays work(
Energy, image player function etc.) etc.；Storage data field can store according to terminal using created data (such as voice data,
Phone directory etc.) etc..Additionally, memory 502 can include high-speed random access memory, non-volatile memories can also be included
Device, for example, at least one disk memory, flush memory device or other volatile solid-state parts.Correspondingly, memory
502 can also include Memory Controller, to provide the access to memory 502 of processor 508 and input block 503.
Input block 503 can be used for numeral, character information or the user's characteristic information (such as fingerprint) of receives input, and
Produce the keyboard relevant with user setup and function control, mouse, action bars, optics or trace ball signal input.Specifically
Ground, input block 503 can include fingerprint recognition module.In certain embodiments, input block 503 can also include touch-sensitive table
Face.Touch sensitive surface, also referred to as touch-screen or Trackpad, can collect user thereon or neighbouring touch operation (such as user
Using the operation on Touch sensitive surface or near Touch sensitive surface of any suitable object such as finger, stylus or annex), and according to
Formula set in advance drives corresponding attachment means.Optionally, Touch sensitive surface may include touch detecting apparatus and touch control
Two parts of device.Wherein, touch detecting apparatus detect the touch orientation of user, and detect the signal that touch operation brings, and will believe
Number send touch controller to；Touch controller receives touch information from touch detecting apparatus, and is converted into contact seat
Mark, then gives processor 508, and can the order sent of receiving processor 508 being executed.Furthermore, it is possible to using resistance-type,
The polytypes such as condenser type, infrared ray and surface acoustic wave realize Touch sensitive surface.Except Touch sensitive surface, input block 503 also may be used
To include other input equipments.Specifically, other input equipments can include but is not limited to physical keyboard, function key (such as sound
Amount control button, switch key etc.), trace ball, mouse, one or more of action bars etc..
Display unit 504 can be used for display and by the information of user input or is supplied to the information of user and the various of terminal
Graphical user interface, these graphical user interface can be made up of figure, text, icon, video and its any combination.Display
Unit 504 may include display floater.Optionally, can using liquid crystal display (LCD, Liquid Crystal Display),
The forms such as Organic Light Emitting Diode (OLED, Organic Light-Emitting Diode) are configuring display floater.Further
, Touch sensitive surface can cover display floater, when Touch sensitive surface detects thereon or after neighbouring touch operation, sends process to
Device 508, to determine the type of touch event, provides accordingly according to the type of touch event on a display panel with preprocessor 508
Visual output.Although in fig. 8, Touch sensitive surface and display floater are to realize inputting as two independent parts and to input
Function, but in some embodiments it is possible to will be integrated to Touch sensitive surface and display floater and realize input and output function.
Terminal may also include at least one sensor 505, such as optical sensor, motion sensor and other sensors.
Specifically, optical sensor may include ambient light sensor and proximity transducer, and wherein, ambient light sensor can be according to ambient light
The brightness to adjust display floater for the light and shade, proximity transducer can cut out display floater and/or the back of the body when terminal moves in one's ear
Light.As one kind of motion sensor, Gravity accelerometer can detect (generally three axles) acceleration in all directions
Size, can detect that size and the direction of gravity when static, can be used for identify mobile phone attitude application (such as horizontal/vertical screen switching,
Dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；Can also configure as terminal
Gyroscope, barometer, hygrometer, thermometer, the other sensors such as infrared ray sensor, will not be described here.
Voicefrequency circuit 506 can provide the COBBAIF between user and terminal by loudspeaker, microphone.Voicefrequency circuit
The voice data receiving can be converted into electric signal by 506, be transferred to loudspeaker, be converted to voice signal output by loudspeaker；
On the other hand, the voice signal of collection is converted to electric signal by microphone, is converted to audio frequency number by voicefrequency circuit 506 after being received
According to then after processing voice data output processor 508, through radio circuit 501 being sent to such as another terminal, or by sound
Frequency data output is to memory 502 to process further.Voicefrequency circuit 506 is also possible that earphone jack, to provide peripheral hardware
Earphone and the communication of terminal.
Wireless Fidelity (WiFi) belongs to short range wireless transmission technology, and terminal can be helped by wireless fidelity module 507
User sends and receive e-mail, browses webpage and access streaming video etc., and it has provided the user wireless broadband internet and has accessed.
Although Fig. 8 shows wireless fidelity module 507, but it is understood that, it is simultaneously not belonging to must be configured into of terminal, completely may be used
To omit in the scope of essence not changing invention as needed.
Processor 508 is the control centre of terminal, using the various pieces of various interfaces and the whole terminal of connection, leads to
Cross and run or execute the application program being stored in memory 502, and call the data being stored in memory 502, execution
The various functions of terminal and processing data, thus carry out integral monitoring to terminal.Optionally, processor 508 may include one or
Multiple processing cores；Preferably, processor 508 can integrated application processor and modem processor, wherein, application processor
Main process operating system, user interface and application program etc., modem processor mainly processes radio communication.It is appreciated that
, above-mentioned modem processor can not also be integrated in processor 508.
Terminal also includes the power supply 509 (such as battery) powered to all parts.Preferably, power supply can pass through power supply pipe
Reason system is logically contiguous with processor 508, thus realizing management charging, electric discharge and power managed by power-supply management system
Etc. function.Power supply 509 can also include one or more direct current or AC power, recharging system, power failure inspection
The random component such as slowdown monitoring circuit, power supply changeover device or inverter, power supply status indicator.
Although not shown in Fig. 8, terminal can also include camera, bluetooth module etc., will not be described here.
Specifically in the present embodiment, the processor 508 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 in memory 502, and to be run by processor 508 and be stored in
Application program in memory 502, thus realize various functions：
Voice data is split into multiple packets of audio data, this packets of audio data includes very first time stamp；Obtain and play
The clocking error of equipment；Change this very first time stamp in this packets of audio data according to this clocking error, amended to obtain
Packets of audio data；Send this amended packets of audio data to this playback equipment.
Preferably, processor 508 has fractionation module, acquisition module, modified module, sending module, is described in detail below：
Processor 508 is used for, by splitting module, voice data is split into multiple packets of audio data, this packets of audio data
Include very first time stamp；
Processor 508 is used for obtaining the clocking error of playback equipment by acquisition module；
Processor 508 is used for changing this very first time in this packets of audio data according to this clocking error by modified module
Stamp, to obtain amended packets of audio data；
Processor 508 is used for sending this amended packets of audio data by sending module to this playback equipment.
Aforesaid operations specifically can be found in embodiment of the method above, will not be described here.
From the foregoing, it will be observed that embodiments providing a kind of terminal, by voice data is split into multiple voice datas
Bag, this packets of audio data includes very first time stamp；Obtain the clocking error of playback equipment；This sound is changed according to this clocking error
This very first time stamp in frequency packet, to obtain amended packets of audio data；Send this to this playback equipment amended
Packets of audio data.The program is repaiied to this very first time stamp in this packets of audio data according to the clocking error of playback equipment
Change, amended packets of audio data is sent to playback equipment, the reality of this amended packets of audio data play by this playback equipment
The border time stabs the corresponding time for this very first time.When multiple playback equipments are play simultaneously, phase play by the plurality of playback equipment
With packets of audio data time identical, namely synchronous broadcasting can be kept between the plurality of playback equipment, with respect to existing skill
The synchronism of playing audio-fequency data between multiple playback equipments for art, can be improved.
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 can be by program to complete come the hardware to instruct correlation, and this program can be stored in computer-readable storage medium
In matter, storage medium can include：Read-only storage (ROM, Read Only Memory), random access memory (RAM,
Random Access Memory), disk or CD etc..
A kind of control method for playing back, device, terminal and the Play System that above the embodiment of the present invention are provided are carried out
It is discussed in detail, specific case used herein is set forth to the principle of the present invention and embodiment, above example
Illustrate that being only intended to help understands the method for the present invention and its core concept；Simultaneously for those skilled in the art, according to this
The thought of invention, all will change in specific embodiments and applications, and in sum, this specification content should not
It is interpreted as limitation of the present invention.
Claims (12)
1. a kind of control method for playing back is it is characterised in that include：
Voice data is split into multiple packets of audio data, described packets of audio data includes very first time stamp；
Obtain the clocking error of playback equipment；
Change the described very first time stamp in described packets of audio data according to described clocking error, to obtain amended audio frequency number
According to bag；
Send described amended packets of audio data to described playback equipment.
2. control method for playing back according to claim 1 is it is characterised in that the clocking error of described acquisition playback equipment
Step specifically includes：
Send preset audio packet to playback equipment, described preset audio packet includes the second timestamp；
Receive the feedback information of described playback equipment, described feedback information is broadcast according to described second timestamp for described playback equipment
Discharge feedack after described preset audio packet；
Obtain the clocking error of described playback equipment according to described feedback information.
3. control method for playing back according to claim 2 is it is characterised in that when described preset audio packet has default
Between length, described specifically included according to the step of clocking error that described feedback information obtains described playback equipment：
Described playback equipment is obtained according to described second timestamp and described predetermined time period and plays described preset audio number
The theoretical deadline according to bag；
The actual finish time that described playback equipment plays described preset audio packet is obtained according to described feedback information；
Obtain the clocking error of described playback equipment according to described theory deadline and described actual finish time.
4. control method for playing back according to claim 1 it is characterised in that described according to described clocking error modification described in
The step of the described very first time stamp in packets of audio data specifically includes：
3rd timestamp is obtained according to stamp of the described very first time and described clocking error；
Stamp of the described very first time is revised as described 3rd timestamp.
5. control method for playing back according to claim 4 is it is characterised in that described stabbed and described according to the described very first time
The step that clocking error obtains the 3rd timestamp specifically includes：
Calculate described very first time stamp and reduce the corresponding moment after described clocking error；
The described moment is set to the 3rd timestamp.
6. a kind of broadcast control device is it is characterised in that include：
Split module, for voice data is split into multiple packets of audio data, described packets of audio data includes the very first time
Stamp；
Acquisition module, for obtaining the clocking error of playback equipment；
Modified module, for changing the described very first time stamp in described packets of audio data according to described clocking error, to obtain
Amended packets of audio data；
Sending module, for sending described amended packets of audio data to described playback equipment.
7. broadcast control device according to claim 6 is it is characterised in that described sending module is additionally operable to：
Send preset audio packet to playback equipment, described preset audio packet includes the second timestamp；
Described acquisition module specifically includes：
Receiving submodule, for receiving the feedback information of described playback equipment, described feedback information be described playback equipment according to
Described second timestamp plays feedack after described preset audio packet；
First acquisition submodule, for obtaining the clocking error of described playback equipment according to described feedback information.
8. broadcast control device according to claim 7 is it is characterised in that when described preset audio packet has default
Between length, described first acquisition submodule specifically for：
Described playback equipment is obtained according to described second timestamp and described predetermined time period and plays described preset audio number
The theoretical deadline according to bag；
The actual finish time that described playback equipment plays described preset audio packet is obtained according to described feedback information；
Obtain the clocking error of described playback equipment according to described theory deadline and described actual finish time.
9. broadcast control device according to claim 6 is it is characterised in that described modified module specifically includes：
Second acquisition submodule, for obtaining the 3rd timestamp according to stamp of the described very first time and described clocking error；
Modification submodule, for being revised as described 3rd timestamp by stamp of the described very first time.
10. broadcast control device according to claim 9 it is characterised in that described second acquisition submodule specifically for：
Calculate described very first time stamp and reduce the corresponding moment after described clocking error；
The described moment is set to the 3rd timestamp.
A kind of 11. terminals are it is characterised in that include：
Touch-screen, for the touch operation of receive user；
Be stored with the memory of executable program code；
The processor coupling with described memory；
Described processor calls the described executable program code of storage in described memory, appoints in execution such as claim 1 to 5
Control method for playing back described in one.
It is characterised in that including broadcast control device and at least one playback equipment, described broadcasting sets a kind of 12. Play Systems
For being connected with described broadcast control device by network, described broadcast control device includes：
Be stored with the memory of executable program code；
The processor coupling with described memory；
Described processor calls the described executable program code of storage in described memory, appoints in execution such as claim 1 to 5
Control method for playing back described in one.
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| CN114416013A (en) * | 2022-01-04 | 2022-04-29 | 深圳Tcl新技术有限公司 | Data transmission method, data transmission device, electronic equipment and computer-readable storage medium |
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