CN106411448B - Control method for playing back, device and terminal - Google Patents
Control method for playing back, device and terminal Download PDFInfo
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- CN106411448B CN106411448B CN201610882807.1A CN201610882807A CN106411448B CN 106411448 B CN106411448 B CN 106411448B CN 201610882807 A CN201610882807 A CN 201610882807A CN 106411448 B CN106411448 B CN 106411448B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72442—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- Computer Networks & Wireless Communication (AREA)
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- Human Computer Interaction (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention provides a kind of control method for playing back, device and terminal, this method uses to playback equipment and sends preset audio data packet；Receive the feedback information of the playback equipment；The clocking error of the playback equipment is obtained according to the feedback information；According to the clocking error to the playback equipment forward delay interval order, which indicates the playback equipment according to the delay command playing audio-fequency data packet.The program keeps the time of playback equipment actual play packets of audio data identical as play time determined by the system clock of broadcast control device by delay command, it allows between multiple playback equipments be able to maintain and be played simultaneously, in terms of existing technologies, the synchronism between multiple playback equipments can be improved.
Description
Technical field
The present invention relates to technical field of electronic equipment, and in particular to a kind of control method for playing back, device and terminal.
Background technique
With the improvement of living standards, audio-visual devices play important role in people's lives.It currently, will be multiple
Music player devices (for example, speaker, player, mobile phone etc.) and control equipment are interconnected by wired or wireless network,
A play system is formed, identical music is played simultaneously, has been widely used.
In above-mentioned play system, each equipment has independent system clock.Each playback equipment according to its own
System clock plays music.However, each playback equipment and the system clock for controlling equipment are not always synchronous.It is each
There may be the subtle time differences each other for playback equipment and control equipment.When multiple playback equipments play identical music
When, the above-mentioned subtle time difference causes the playback progress of each playback equipment inconsistent, thereby results between multiple playback equipments
Synchronism is low.
Summary of the invention
The embodiment of the present invention provides a kind of control method for playing back, device and terminal, can be improved between multiple playback equipments
Synchronism.
The embodiment of the present invention provides a kind of control method for playing back, comprising:
Preset audio data packet is sent to playback equipment, includes stabbing in the preset audio data packet at the first time；
The feedback information of the playback equipment is received, which is that the playback equipment is played according to first time stamp
The information fed back after the preset audio data packet；
The clocking error of the playback equipment is obtained according to the feedback information；
According to the clocking error to the playback equipment forward delay interval order, which indicates the playback equipment according to this
Delay command playing audio-fequency data packet.
Correspondingly, the embodiment of the present invention also provides a kind of broadcast control device, comprising:
Data transmission blocks are used to send preset audio data packet to playback equipment, include in the preset audio data packet
It stabs at the first time；
Receiving module, for receiving the feedback information of the playback equipment, the feedback information be the playback equipment according to this
One timestamp plays the information fed back after the preset audio data packet；
Module is obtained, for obtaining the clocking error of the playback equipment according to the feedback information；
Command sending module, for, to the playback equipment forward delay interval order, which to refer to according to the clocking error
Show the playback equipment according to the delay command playing audio-fequency data packet.
Correspondingly, the embodiment of the present invention also provides a kind of terminal, comprising:
Touch screen, for receiving the touch operation of user；
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, executes above-mentioned control method for playing back.
The embodiment of the present invention uses to playback equipment and sends preset audio data packet, includes the in the preset audio data packet
One timestamp；The feedback information of the playback equipment is received, which is the playback equipment according to the stamp broadcasting at the first time
The information fed back after the complete preset audio data packet；The clocking error of the playback equipment is obtained according to the feedback information；According to this
For clocking error to the playback equipment forward delay interval order, which indicates that the playback equipment plays sound according to the delay command
Frequency data packet.Information that the program is fed back after playing preset audio data packet according to playback equipment obtains the playback equipment
Clocking error indicates that the playback equipment plays audio number according to the delay command then to the playback equipment forward delay interval order
According to packet, so that determined by the system clock of the time of the playback equipment actual play packets of audio data and the broadcast control device
Play time is identical.When there are multiple playback equipments, the identical packets of audio data of multiple playback equipment actual play when
Between can be between the playback equipment identical namely multiple with play time determined by the system clock of the broadcast control device
It is able to maintain and is played simultaneously, in terms of existing technologies, the synchronism between multiple playback equipments can be improved.
Detailed description of the invention
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 drawings in the following description are only some embodiments of the 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 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 flow diagram of control method for playing back provided by Embodiment 2 of the present invention.
Fig. 4 is the structural schematic diagram for the first broadcast control device that the embodiment of the present invention three provides.
Fig. 5 is the structural schematic diagram for second of broadcast control device that the embodiment of the present invention three provides.
Fig. 6 is the structural schematic diagram for the first terminal that the embodiment of the present invention four provides.
Fig. 7 is the structural schematic diagram for second of terminal that the embodiment of the present invention four provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
Description and claims of this specification and term " first " in above-mentioned attached drawing, " second ", " third " etc.
(if present) is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be appreciated that this
The object of sample description is interchangeable under appropriate circumstances.In addition, term " includes " and " having " and their any deformation, meaning
Figure, which is to cover, non-exclusive includes.For example, containing the process, method of series of steps or containing a series of modules or list
The device of member, terminal, system those of are not necessarily limited to be clearly listed step or module or unit, can also include unclear
The step of ground is listed or module or unit also may include its intrinsic for these process, methods, device, terminal or system
Its step or module or unit.
The embodiment of the present invention provides a kind of control method for playing back, device and terminal, will be described in detail respectively below.
Embodiment one
The present embodiment will be described from the angle of broadcast control device, which specifically can integrate in the terminal, should
Terminal can be the equipment such as smart phone, tablet computer.
A kind of control method for playing back, comprising: preset audio data packet is sent to playback equipment, in the preset audio data packet
It is stabbed including first time；The feedback information of the playback equipment is received, which is the playback equipment according to the first time
Stamp plays the information fed back after the packets of audio data；The clocking error of the playback equipment is obtained according to the feedback information；According to
For the clocking error to the playback equipment forward delay interval order, which indicates that the playback equipment is played according to the delay command
Packets of audio data.
As shown in Figure 1, the control method for playing back, detailed process may include:
S101 sends preset audio data packet to playback equipment, includes stabbing in the preset audio data packet at the first time.
In concrete application, which can be the equipment that speaker, music player etc. have audio playing function.It should
Broadcast control device can be integrated in the electronic device in terminal, be also possible to playback equipment having data processing function.
The preset audio data packet can be a segment of audio data being stored in advance in the memory of broadcast control device.The broadcasting control
When device processed sends the preset audio data packet to the playback equipment, it is default that this is transferred from the memory of the broadcast control device
Packets of audio data, then into the preset audio data packet, addition is stabbed at the first time.First time stamp can be and be broadcast according to this
Put a time point not yet reached determined by the system clock of control device.
S102 receives the feedback information of the playback equipment, which is that the playback equipment stabs at the first time according to this
Play the information fed back after the preset audio data packet.
Specifically, playback equipment has independent system clock.In practical application, the playback equipment and broadcasting control are filled
There may be the subtle time difference between setting, therefore the system clock of the system clock of the playback equipment and the broadcast control device
It is not always identical.After the playback equipment receives the preset audio data packet of broadcast control device transmission, in the broadcasting
When the system clock of equipment reaches first time stamp, the preset audio data packet is played.In concrete application, since this presets sound
Frequency data packet is preset a segment of audio data, is not audio data required for user, therefore the playback equipment is played and is somebody's turn to do
When preset audio data packet, the movements such as decoding, digital-to-analogue conversion, signal amplification only can be executed to the preset audio data packet, and
Amplified signal is not exported by output interface, also sound is not exported by loudspeaker.Play the preset audio data packet
Afterwards, which sends feedback information to the broadcast control device.The feedback information indicates that the playback equipment played this
Preset audio data packet.The broadcast control device receives the feedback information of playback equipment transmission.
S103 obtains the clocking error of the playback equipment according to the feedback information.
Specifically, after the feedback information for receiving playback equipment transmission, broadcast control device can be according to the feedback information
Obtain the clocking error between the playback equipment and the broadcast control device.In concrete application, which has
Predetermined time period.The predetermined time period is the duration consumed required for playing the preset audio data packet.According to the feedback
The clocking error of the acquisition of information playback equipment can with specifically includes the following steps:
It calculates the playback equipment according to first time stamp and the predetermined time period and plays the preset audio data packet
The theoretical deadline；
The actual finish time that the playback equipment plays the preset audio data packet is obtained according to the feedback information；
The clocking error of the playback equipment is obtained according to the theory deadline and the actual finish time.
Specifically, broadcast control device can be stabbed according to the first time and the predetermined time period calculates the playback equipment
Play the theoretical deadline of the preset audio data packet.In practical application, which can be stabbed and be preset plus this
Time span is as the theory deadline.For example, at the first time stamp label at the time of for 1 point 10 seconds, predetermined time period is
500 milliseconds, then the theory deadline be 1 point 10.5 seconds.
Broadcast control device can in the feedback information for receiving playback equipment, record receive the feedback information when
Between.Due to being communicated between broadcast control device and playback equipment by cable network or wireless network, feedback information is with electricity
Signal (voltage or electric current) or the form of electromagnetic wave are transmitted.And the transmission speed of electric signal and electromagnetic wave is quickly, electric signal
Or passing time of the electromagnetic wave between broadcast control device and playback equipment can be ignored.It is therefore contemplated that this is broadcast
Put control device receive the feedback information time be the playback equipment play the preset audio data packet reality it is complete
At the time.
Then, the playback equipment can be obtained according to the theory deadline and the actual finish time and the broadcasting controls
Clocking error between device, the i.e. clocking error of the playback equipment.According to the theory deadline and the actual finish time
Obtain the playback equipment clocking error can with specifically includes the following steps:
Calculate the time difference between theory deadline and the actual finish time；
Using the time difference as the clocking error of the playback equipment.
Specifically, the time difference between the theory deadline and the actual finish time can be calculated, then with this when
Between clocking error of the difference as the playback equipment.Specific calculation is as follows:
t0=t1-t2
Wherein, t0For the time difference that need to be calculated, t1For the theory deadline, t2For the actual finish time.When calculating
Between difference t0Afterwards, with time difference t0Clocking error as the playback equipment.As clocking error t0It is for positive value, i.e., theoretical when completing
Between when being ahead of actual finish time, indicate that the system clock of playback equipment is slower than the system clock of broadcast control device；At that time
Clock error t0For negative value, i.e., the theoretical deadline is delayed when actual finish time, indicates that the system clock ratio of playback equipment is broadcast
The system clock for putting control device is fast；As clocking error t0When being 0, the system clock and broadcast control device of playback equipment are indicated
System clock it is identical, i.e., there is no clocking error between playback equipment and broadcast control device.
S104, according to the clocking error to the playback equipment forward delay interval order, which indicates the playback equipment
According to the delay command playing audio-fequency data packet.
Specifically, it after broadcast control device gets the clocking error of playback equipment, is ordered to the playback equipment forward delay interval
It enables.The clocking error information can be carried in the delay command.The delay command indicates the playback equipment according to the delay command
Playing audio-fequency data packet.
In some embodiments, according to the clocking error to before the playback equipment forward delay interval order, broadcasting control
Method can with the following steps are included:
Packets of audio data is sent to the playback equipment；
Play command is sent to the playback equipment；
The delay command specifically indicates that the playback equipment plays the audio data according to the play command and the delay command
Packet.
In concrete application, broadcast control device can transfer the original sound being stored in the memory of the broadcast control device
Frequency evidence.Broadcast control device can also obtain original audio number by wired or wireless network from server or other terminals
According to.Broadcast control device can also obtain original audio data from the storage mediums such as CD.The original audio data include but
It is not limited to CD, WAV, MP3 (Moving Picture Experts Group Audio Layer III), WMA (Windows
Media Audio) etc. formats audio data.
After getting original audio data, which can split into the original audio data multiple audios
Then data packet sends the packets of audio data splitted out to the playback equipment.Then, which can broadcast to this
It puts equipment and sends play command.
The delay command specifically indicates that the playback equipment plays the audio data according to the play command and the delay command
Packet.
In some embodiments, which can add for the second time in the packets of audio data splitted out
Stamp.Second timestamp can be the time not yet reached according to determined by the system clock of the broadcast control device
Point.The delay command specifically indicates that the playback equipment plays the packets of audio data according to the following steps:
The play time of the packets of audio data is calculated according to second timestamp and the delay command；
The packets of audio data is played according to the play time.
Specifically, when which indicates that the playback equipment calculates the broadcasting of the packets of audio data according to following formula
Between:
T=t3-t0
Wherein, T is the play time, t3At the time of label by second timestamp, t0It is missed for the clock of the playback equipment
Difference.For example, t at the time of second timestamp label3For 1 point 20 seconds, clocking error t0It is 1 second, then calculated play time
T be 1 point 19 seconds, indicate that the playback equipment needs 1 second in advance to play the packets of audio data.In another example second timestamp label
At the time of t3For 1 point 20 seconds, clocking error t0Be -1 second, then calculated play time T be 1 point 21 seconds, indicate that the broadcasting is set
The packets of audio data is played for needing to delay 1 second.
The delay command also indicates after the playback equipment calculates the play time, plays the audio according to the play time
Data packet.
The playback equipment receives packets of audio data, play command and the delay command of broadcast control device transmission
Afterwards, according to formula T=t3-t0Calculate the play time T of the packets of audio data.Then, it is arrived in the system clock of the playback equipment
When up to play time T, the packets of audio data is played.
When it is implemented, the present invention is not limited by the execution sequence of described each step, conflict is not being generated
In the case of, certain steps can also be carried out using other sequences or be carried out simultaneously.
From the foregoing, it will be observed that control method for playing back provided in an embodiment of the present invention, sends preset audio number using to playback equipment
It include stabbing in the preset audio data packet at the first time according to packet；The feedback information of the playback equipment is received, which is should
Playback equipment plays the information fed back after the preset audio data packet according to first time stamp；It is obtained according to the feedback information
The clocking error of the playback equipment；According to the clocking error to the playback equipment forward delay interval order, delay command instruction should
Playback equipment is according to the delay command playing audio-fequency data packet.After the program plays preset audio data packet according to playback equipment
The information of feedback indicates the broadcasting then to the playback equipment forward delay interval order to obtain the clocking error of the playback equipment
Equipment is according to the delay command playing audio-fequency data packet, so that the time of the playback equipment actual play packets of audio data is broadcast with this
It is identical to put play time determined by the system clock of control device.When there are multiple playback equipments, multiple playback equipment
When the time of the identical packets of audio data of actual play can play determined by the system clock with the broadcast control device
Between be able to maintain between identical namely multiple playback equipment and be played simultaneously, in terms of existing technologies, can be improved multiple
Synchronism between playback equipment.
Embodiment two
According to control method for playing back described in embodiment one, citing is described in further detail below.
In the present embodiment, it will be specifically integrated in smart phone with broadcast control device, and be based on broadcasting shown in Fig. 2
The control method for playing back of the present embodiment is described in detail in system.
As shown in Fig. 2, for the composition schematic diagram of one of the present embodiment play system.Play system by server 210,
Smart phone 211 and multiple playback equipments 212 form.Server 210 can be the server on network.Playback equipment
212 can be the equipment that speaker, music player etc. have audio playing function.Smart phone 211 passes through internet and service
Device 210 carries out data communication, so that smart phone 211 can obtain audio data from server 210.Meanwhile smart phone
211 carry out data communication by wireless network (such as WiFi) and multiple playback equipments 212, so that smart phone 211 can be with
Packets of audio data is sent to playback equipment 212.
As shown in figure 3, control method for playing back, detailed process be can be such that
S201, smart phone send preset audio data packet to playback equipment, include first in the preset audio data packet
Timestamp.
Specifically, which can be a segment of audio number being stored in advance in the memory of smart phone
According to.When the smart phone sends the preset audio data packet to the playback equipment, this is transferred from the memory of the smart phone
Preset audio data packet, then into the preset audio data packet, addition is stabbed at the first time.First time stamp can be basis
A time point not yet reached determined by the system clock of the smart phone.
S202, smart phone receive the feedback information of the playback equipment, the feedback information be the playback equipment according to this
One timestamp plays the information fed back after the preset audio data packet.
Specifically, playback equipment has independent system clock.In practical application, the playback equipment and the smart phone it
Between there may be the subtle time differences, therefore the system clock of the playback equipment and the system clock of the smart phone are not always
It is identical.After the playback equipment receives the preset audio data packet of smart phone transmission, in the system of the playback equipment
When clock reaches first time stamp, the preset audio data packet is played.In concrete application, which can be only default to this
Packets of audio data executes the movements such as decoding, digital-to-analogue conversion, signal amplification, without exporting amplified signal by output interface,
Also sound is not exported by loudspeaker.After playing the preset audio data packet, which sends anti-to the smart phone
Feedforward information.The feedback information indicates that the playback equipment played the preset audio data packet.The smart phone receives the broadcasting
The feedback information that equipment is sent.
S203, smart phone according to first time stamp and predetermined time period calculates the playback equipment, and to play this default
The theoretical deadline of packets of audio data.
Specifically, which has predetermined time period.The predetermined time period is to play the default sound
The duration consumed required for frequency data packet.The first time can be stabbed plus the predetermined time period and calculate this by smart phone
Playback equipment plays the theoretical deadline of the preset audio data packet.It is 1 point 10 at the time of for example, stamp marks at the first time
Second, predetermined time period be 500 milliseconds, then the theory deadline for 1 point 10.5 seconds.
S204, smart phone obtain the reality that the playback equipment plays the preset audio data packet according to the feedback information
Deadline.
Specifically, smart phone can record in the feedback information for receiving playback equipment and receive the feedback information
Time.Due to passing through wireless networks such as WiFi (Wireless Fidelity, Wireless Fidelitys) between smart phone and playback equipment
Network is communicated, and feedback information is transmitted in the form of an electromagnetic wave.And the transmission speed of electromagnetic wave is quickly, electromagnetic wave is playing
Passing time between equipment and smart phone can be ignored.It is therefore contemplated that the smart phone receives the feedback
The time of information is the actual finish time that the playback equipment plays the preset audio data packet.
S205, smart phone calculate the time difference between theory deadline and the actual finish time.
Specifically, smart phone can be calculated by the following formula between the theory deadline and the actual finish time
Time difference:
t0=t1-t2
Wherein, t0For the time difference that need to be calculated, t1For the theory deadline, t2For the actual finish time.
S206, clocking error of the smart phone using the time difference as the playback equipment.
Specifically, smart phone calculates time difference t0Afterwards, with time difference t0Clocking error as the playback equipment.
As clocking error t0The system clock of playback equipment is indicated when that is, theoretical deadline is ahead of actual finish time for positive value
It is slower than the system clock of smart phone；As clocking error t0For negative value, i.e., the theoretical deadline is delayed when actual finish time,
Indicate that the system clock of playback equipment is faster than the system clock of smart phone；As clocking error t0When being 0, playback equipment is indicated
System clock is identical as the system clock of smart phone, i.e., does not have clocking error between playback equipment and smart phone.
S207, smart phone send packets of audio data to the playback equipment.
Specifically, smart phone can obtain original audio data from server by internet.The original audio data
Including but not limited to CD, WAV, MP3 (Moving Picture Experts Group Audio Layer III), WMA
The audio data of formats such as (Windows Media Audio).
After getting original audio data, which can split into the original audio data multiple audio datas
Then packet sends the packets of audio data splitted out to the playback equipment.
S208, smart phone send play command to the playback equipment.
Specifically, after sending packets of audio data to playback equipment, smart phone sends play command to the playback equipment.
S209, for smart phone according to the clocking error to the playback equipment forward delay interval order, delay command instruction should
Playback equipment calculates the play time of the packets of audio data according to the second timestamp and the delay command, and according to the play time
Play the packets of audio data.
It specifically, can be to the sound split out when original audio data is split into multiple packets of audio data by smart phone
The second timestamp is added in frequency data packet.Second timestamp can be one according to determined by the system clock of the smart phone
A time point not yet reached.The delay command indicates that the playback equipment plays the packets of audio data according to the following steps:
The play time of the packets of audio data is calculated according to second timestamp and the delay command；
The packets of audio data is played according to the play time.
In practical application, which indicates that the playback equipment calculates the broadcasting of the packets of audio data according to following formula
Time:
T=t3-t0
Wherein, T is the play time, t3At the time of label by second timestamp, t0It is missed for the clock of the playback equipment
Difference.For example, t at the time of second timestamp label3For 1 point 20 seconds, clocking error t0It is 1 second, then calculated play time
T be 1 point 19 seconds, indicate that the playback equipment needs 1 second in advance to play the packets of audio data.In another example second timestamp label
At the time of t3For 1 point 20 seconds, clocking error t0Be -1 second, then calculated play time T be 1 point 21 seconds, indicate that the broadcasting is set
The packets of audio data is played for needing to delay 1 second.
The delay command also indicates after the playback equipment calculates the play time, plays the audio according to the play time
Data packet.
After the playback equipment receives the packets of audio data, play command and delay command of smart phone transmission, root
According to formula T=t3-t0Calculate the play time T of the packets of audio data.Then, reaching in the system clock of the playback equipment should
When play time T, the packets of audio data is played.
When it is implemented, the present invention is not limited by the execution sequence of described each step, conflict is not being generated
In the case of, certain steps can also be carried out using other sequences or be carried out simultaneously.
From the foregoing, it will be observed that control method for playing back provided in an embodiment of the present invention, is sent in advance using smart phone to playback equipment
If packets of audio data；Receive the feedback information of the playback equipment；It calculates the playback equipment and plays the preset audio data packet
The theoretical deadline；Obtain the actual finish time that the playback equipment plays the preset audio data packet；It is complete to calculate the theory
At the time difference between time and the actual finish time；Using the time difference as the clocking error of the playback equipment；It is broadcast to this
It puts equipment and sends packets of audio data；Play command is sent to the playback equipment；To the playback equipment forward delay interval order, the delay
Order indicates that the playback equipment calculates the play time of the packets of audio data, and plays the audio data according to the play time
Packet.The program obtains the clocking error of playback equipment first, then to the playback equipment forward delay interval order, so that the broadcasting is set
The time of standby actual play packets of audio data is identical as play time determined by the system clock of the smart phone.It is more when existing
When a playback equipment, the time of the identical packets of audio data of multiple playback equipment actual play can be with the smart phone
Play time determined by system clock is identical namely multiple playback equipment between be able to maintain and be played simultaneously, relative to existing
For having technology, the synchronism between multiple playback equipments can be improved.
Embodiment three
In order to better implement above method, the embodiment of the present invention also provides a kind of broadcast control device, which can be with
It integrates in the terminal, which can be the equipment such as smart phone, tablet computer.
As shown in figure 4, broadcast control device 300 may include: data transmission blocks 301, receiving module 302, obtain mould
Block 303, command sending module 304, are described in detail below:
The data transmission blocks 301, for sending preset audio data packet to playback equipment, in the preset audio data packet
It is stabbed including first time；
The receiving module 302, for receiving the feedback information of the playback equipment, the feedback information be the playback equipment according to
First time stamp plays the information fed back after the preset audio data packet；
The acquisition module 303, for obtaining the clocking error of the playback equipment according to the feedback information；
The command sending module 304, for, to the playback equipment forward delay interval order, which to order according to the clocking error
It enables and indicates the playback equipment according to the delay command playing audio-fequency data packet.
Preferably, which is also used to:
Packets of audio data is sent to the playback equipment；
The command sending module 304 is also used to:
Play command is sent to the playback equipment；
The delay command specifically indicates that the playback equipment plays the audio data according to the play command and the delay command
Packet.
Preferably, in the packets of audio data include the second timestamp, the delay command specifically indicate the playback equipment according to
Following steps play the packets of audio data:
The play time of the packets of audio data is calculated according to second timestamp and the delay command；
The packets of audio data is played according to the play time.
Preferably, which has predetermined time period, as shown in figure 5, the acquisition module 303 includes:
Computational submodule 3031, the first acquisition submodule 3032, the second acquisition submodule 3033, specific as follows:
The computational submodule 3031, for calculating the playback equipment according to first time stamp and the predetermined time period and broadcasting
Discharge the theoretical deadline of the preset audio data packet；
First acquisition submodule 3032 plays the preset audio for obtaining the playback equipment according to the feedback information
The actual finish time of data packet；
Second acquisition submodule 3033, for obtaining the broadcasting according to the theory deadline and the actual finish time
The clocking error of equipment.
Preferably, which is specifically used for:
Calculate the time difference between theory deadline and the actual finish time；
Using the time difference as the clocking error of the playback equipment.
When it is implemented, the above modules can be used as independent entity to realize, any combination can also be carried out, is made
It is realized for same or several entities.The specific implementation of the above modules can be found in the embodiment of the method for front, herein not
It repeats again.
From the foregoing, it will be observed that broadcast control device 300 provided in an embodiment of the present invention, by data transmission blocks 301 to broadcasting
Equipment sends preset audio data packet, includes stabbing in the preset audio data packet at the first time；Receiving module 302 receives the broadcasting
The feedback information of equipment, the feedback information are after the playback equipment plays the preset audio data packet according to first time stamp
The information of feedback；Obtain the clocking error that module 303 obtains the playback equipment according to the feedback information；Command sending module 304
According to the clocking error to the playback equipment forward delay interval order, which indicates the playback equipment according to the delay command
Playing audio-fequency data packet.The information that the program is fed back after playing preset audio data packet according to playback equipment obtains the broadcasting
The clocking error of equipment indicates that the playback equipment is played according to the delay command then to the playback equipment forward delay interval order
Packets of audio data, so that the system clock institute of the time of the playback equipment actual play packets of audio data and the broadcast control device
Determining play time is identical.When there are multiple playback equipments, the identical audio data of multiple playback equipment actual play
The time of packet can it is identical as play time determined by the system clock of the broadcast control device namely it is multiple broadcasting set
It is able to maintain and is played simultaneously between standby, in terms of existing technologies, the synchronism between multiple playback equipments can be improved.
Example IV
The embodiment of the present invention also provides a kind of terminal, which can be the equipment such as smart phone, tablet computer.
As shown in fig. 6, terminal 400 may include: data transmission blocks 401, receiving module 402, obtain module 403, life
Sending module 404 is enabled, is described in detail below:
The data transmission blocks 401, for sending preset audio data packet to playback equipment, in the preset audio data packet
It is stabbed including first time；
The receiving module 402, for receiving the feedback information of the playback equipment, the feedback information be the playback equipment according to
First time stamp plays the information fed back after the preset audio data packet；
The acquisition module 403, for obtaining the clocking error of the playback equipment according to the feedback information；
The command sending module 404, for, to the playback equipment forward delay interval order, which to order according to the clocking error
It enables and indicates the playback equipment according to the delay command playing audio-fequency data packet.
Preferably, which is also used to:
Packets of audio data is sent to the playback equipment；
The command sending module 404 is also used to:
Play command is sent to the playback equipment；
The delay command specifically indicates that the playback equipment plays the audio data according to the play command and the delay command
Packet.
Preferably, in the packets of audio data include the second timestamp, the delay command specifically indicate the playback equipment according to
Following steps play the packets of audio data:
The play time of the packets of audio data is calculated according to second timestamp and the delay command；
The packets of audio data is played according to the play time.
Preferably, the preset audio data packet have predetermined time period, the acquisition module 403 include: computational submodule,
First acquisition submodule, the second acquisition submodule, specific as follows:
The computational submodule, for calculating the playback equipment according to first time stamp and the predetermined time period and playing
The theoretical deadline of the preset audio data packet；
First acquisition submodule plays the preset audio data for obtaining the playback equipment according to the feedback information
The actual finish time of packet；
Second acquisition submodule, for obtaining the playback equipment according to the theory deadline and the actual finish time
Clocking error.
Preferably, which is specifically used for:
Calculate the time difference between theory deadline and the actual finish time；
Using the time difference as the clocking error of the playback equipment.
Aforesaid operations are for details, reference can be made to the embodiment of the method for front, and details are not described herein.
The embodiment of the present invention also provides another terminal, as shown in fig. 7, the terminal 500 may include radio frequency (RF, Radio
Frequency) circuit 501, include one or more memory 502, the input unit of computer readable storage medium
503, display unit 504, sensor 505, voicefrequency circuit 506, Wireless Fidelity (WiFi, Wireless Fidelity) module
507, the components such as processor 508 and the power supply 509 of processing core are included one or more than one.Those skilled in the art
Member it is appreciated that terminal structure not structure paired terminal shown in Fig. 7 restriction, may include more more or fewer than illustrating
Component perhaps combines certain components or different component layouts.
Radio circuit 501 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 508 processing；In addition, the data for being related to uplink are sent
To base station.In general, radio circuit 501 includes but is not limited to antenna, at least one amplifier, tuner, one or more oscillations
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 501 can also by wireless communication with network
It is communicated with other equipment.Any communication standard or agreement, including but not limited to global system for mobile telecommunications can be used in the wireless communication
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 502 can be used for storing application program and data.It include that can hold in the application program that memory 502 stores
Line program code.Application program can form various functional modules.Processor 508 is stored in answering for memory 502 by operation
With program, thereby 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 (for example sound plays function
Energy, image player function etc.) etc.；Storage data area can store according to terminal use created data (such as audio data,
Phone directory etc.) etc..In addition, memory 502 may include high-speed random access memory, it can also include non-volatile memories
Device, for example, at least a disk memory, flush memory device or other volatile solid-state parts.Correspondingly, memory
502 can also include Memory Controller, to provide the access of processor 508 and input unit 503 to memory 502.
Input unit 503 can be used for receiving number, character information or the user's characteristic information (such as fingerprint) of input, and
Generate keyboard related with user setting and function control, mouse, operating stick, optics or trackball signal input.Specifically
Ground, input unit 503 may include fingerprint recognition mould group.In some embodiments, input unit 503 can also include touch-sensitive table
Face.Touch sensitive surface, also referred to as touch screen or Trackpad collect touch operation (such as the user of user on it or nearby
Use the operation of any suitable object or attachment such as finger, stylus on touch sensitive surface or near touch sensitive surface), and according to
Preset formula drives corresponding attachment device.Optionally, touch sensitive surface may include touch detecting apparatus and touch control
Two parts of device.Wherein, the touch orientation of touch detecting apparatus detection user, and touch operation bring signal is detected, it 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 receive order that processor 508 is sent and be executed.Furthermore, it is possible to using resistance-type,
The multiple types such as condenser type, infrared ray and surface acoustic wave realize touch sensitive surface.In addition to touch sensitive surface, input unit 503 may be used also
To include other input equipments.Specifically, other input equipments can include but is not limited to physical keyboard, function key (such as sound
Measure control button, switch key etc.), trace ball, mouse, one of operating stick etc. or a variety of.
Display unit 504 can be used for showing information input by user or be supplied to user information and terminal it is various
Graphical user interface, these graphical user interface can be made of figure, text, icon, video and any combination thereof.Display
Unit 504 may include display panel.Optionally, can using 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, after touch sensitive surface detects touch operation on it or nearby, send processing to
Device 508 is followed by subsequent processing device 508 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 touch sensitive surface and display panel are to realize input and input as two independent components in Fig. 7
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 505, 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 back when terminal is moved in one's ear
Light.As a kind of motion sensor, gravity accelerometer can detect (generally three axis) acceleration in all directions
Size can detect that size and the direction of gravity when static, can be used to identify 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 sensor, details are not described herein.
Voicefrequency circuit 506 can provide the audio interface between user and terminal by loudspeaker, microphone.Voicefrequency circuit
The audio data received 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 number after being received by voicefrequency circuit 506
According to then such as another terminal will be sent to through radio circuit 501 after audio data output processor 508 handles, or by sound
Frequency is further processed according to output to memory 502.Voicefrequency circuit 506 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 507
User sends and receive e-mail, browses webpage and access streaming video etc., it provides wireless broadband internet access for user.
Although Fig. 7 shows wireless fidelity module 507, but it is understood that, and it is not belonging to must be configured into for terminal, completely may be used
To omit within the scope of not changing the essence of the invention as needed.
Processor 508 is the control centre of terminal, using the various pieces of various interfaces and the entire terminal of connection, is led to
It crosses operation or executes the application program being stored in memory 502, and call the data being stored in memory 502, execute
The various functions and processing data of terminal, to carry out integral monitoring to terminal.Optionally, processor 508 may include one or
Multiple processing cores；Preferably, processor 508 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 understood that
, above-mentioned modem processor can not also be integrated into processor 508.
Terminal further includes the power supply 509 (such as battery) powered to all parts.Preferably, power supply can pass through power supply pipe
Reason system and processor 508 are logically contiguous, to realize management charging, electric discharge and power managed by power-supply management system
Etc. functions.Power supply 509 can also include one or more direct current or AC power source, recharging system, power failure inspection
The random components such as slowdown monitoring circuit, power adapter or inverter, power supply status indicator.
Although being 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 508 in terminal can be according to following instruction, will be one or more
The corresponding executable program code of the process of application program is loaded into memory 502, and is stored in by processor 508 to run
Application program in memory 502, to realize various functions:
Preset audio data packet is sent to playback equipment, includes stabbing in the preset audio data packet at the first time；Receiving should
The feedback information of playback equipment, the feedback information are after the playback equipment plays the packets of audio data according to first time stamp
The information of feedback；The clocking error of the playback equipment is obtained according to the feedback information；According to the clocking error to the playback equipment
Forward delay interval order, the delay command indicate the playback equipment according to the delay command playing audio-fequency data packet.
Preferably, processor 508 has data transmission blocks, receiving module, obtains module, command sending module, specifically
It is described as follows:
Processor 508 is used to send preset audio data packet, the preset audio to playback equipment by data transmission blocks
It include stabbing in data packet at the first time；
Processor 508 is used to receive the feedback information of the playback equipment by receiving module, which is the broadcasting
Equipment plays the information fed back after the packets of audio data according to first time stamp；
Processor 508 is used to obtain the clocking error of the playback equipment according to the feedback information by acquisition module；
Processor 508 is used for through command sending module according to the clocking error to the playback equipment forward delay interval order,
The delay command indicates the playback equipment according to the delay command playing audio-fequency data packet.
Aforesaid operations are 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 the embodiment of the invention provides a kind of terminal, by sending preset audio data packet to playback equipment,
It include stabbing in the preset audio data packet at the first time；The feedback information of the playback equipment is received, which is the broadcasting
Equipment plays the information fed back after the preset audio data packet according to first time stamp；This is obtained according to the feedback information to broadcast
Put the clocking error of equipment；According to the clocking error to the playback equipment forward delay interval order, which indicates the broadcasting
Equipment is according to the delay command playing audio-fequency data packet.The program is fed back after playing preset audio data packet according to playback equipment
Information indicate the playback equipment then to the playback equipment forward delay interval order to obtain the clocking error of the playback equipment
According to the delay command playing audio-fequency data packet, so that the time of the playback equipment actual play packets of audio data and the terminal
Play time determined by system clock is identical.When there are multiple playback equipments, multiple playback equipment actual play is identical
Time of packets of audio data can the broadcasting identical namely multiple with play time determined by the system clock of the terminal
It is able to maintain and is played simultaneously between equipment, in terms of existing technologies, the synchronism between multiple playback equipments can be improved.
It should be noted that those 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 store in computer-readable storage medium
In matter, storage medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM,
Random Access Memory), disk or CD etc..
A kind of control method for playing back, device and terminal is provided for the embodiments of the invention above to be described in detail,
Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only used
In facilitating the understanding of the method and its core concept of the invention；Meanwhile for those skilled in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
Limitation of the invention.
Claims (6)
1. a kind of control method for playing back characterized by comprising
Preset audio data packet is sent to playback equipment, includes stabbing in the preset audio data packet at the first time, it is described default
Packets of audio data has predetermined time period；
It receives the feedback information of the playback equipment and record receives time of the feedback information, the feedback information is institute
It states playback equipment and the information fed back after the preset audio data packet is played according to first time stamp；
The playback equipment, which is calculated, according to first time stamp and the predetermined time period plays the preset audio number
According to the theoretical deadline of packet；
The time for receiving the feedback information is determined as the reality that the playback equipment plays the preset audio data packet
The border deadline；
The clocking error of the playback equipment is obtained according to the theoretical deadline and the actual finish time；
Original audio data is split into multiple packets of audio data；
Packets of audio data is sent to the playback equipment, wherein including the second timestamp in the packets of audio data；
According to the clocking error to the playback equipment forward delay interval order, the delay command indicates the playback equipment root
The play time of the packets of audio data is calculated according to second timestamp and the delay command, and indicates the playback equipment
According to the play time playing audio data packet.
2. control method for playing back according to claim 1, which is characterized in that described according to the theoretical deadline and institute
The step of actual finish time obtains the clocking error of the playback equipment is stated to specifically include:
Calculate the time difference between the theoretical deadline and the actual finish time；
Using the time difference as the clocking error of the playback equipment.
3. a kind of broadcast control device characterized by comprising
Data transmission blocks include for sending preset audio data packet to playback equipment, in the preset audio data packet
One timestamp, the preset audio data packet have predetermined time period；
Receiving module, feedback information and record for receiving the playback equipment receive the time of the feedback information, institute
It states feedback information and the letter fed back after the preset audio data packet is played according to first time stamp for the playback equipment
Breath；
Module is obtained, plays institute for calculating the playback equipment according to first time stamp and the predetermined time period
State the theoretical deadline of preset audio data packet；The time for receiving the feedback information is determined as the playback equipment to broadcast
Discharge the actual finish time of the preset audio data packet；It is obtained according to the theoretical deadline and the actual finish time
Take the clocking error of the playback equipment；
The data transmission blocks, are also used to: original audio data is split into multiple packets of audio data；To the playback equipment
Packets of audio data is sent, wherein including the second timestamp in the packets of audio data；
Command sending module, for according to the clocking error to the playback equipment forward delay interval order, the delay command
Indicate that the playback equipment calculates the play time of the packets of audio data according to second timestamp and the delay command,
And indicate the playback equipment according to the play time playing audio data packet.
4. broadcast control device according to claim 3, which is characterized in that according to the theoretical deadline and the reality
When the border deadline obtains the clocking error of the playback equipment, the acquisition module is used for:
Calculate the time difference between the theoretical deadline and the actual finish time；
Using the time difference as the clocking error of the playback equipment.
5. a kind of terminal characterized by comprising
Touch screen, for receiving the touch operation of user；
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, executes as appointed in claim 1 to 2
Control method for playing back described in one.
6. a kind of storage medium, which is characterized in that computer program is stored in the storage medium, when the computer program
When running on computers, so that the computer perform claim requires 1 to 2 described in any item control method for playing back.
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109362099A (en) * | 2018-12-05 | 2019-02-19 | 南昌黑鲨科技有限公司 | Wirelessly communicate delay testing method, device, computer equipment and storage medium |
| CN112135342A (en) * | 2019-06-25 | 2020-12-25 | 瑞昱半导体股份有限公司 | Audio playing system and method |
| CN112105005B (en) * | 2019-08-30 | 2024-05-03 | 炬力(珠海)微电子有限公司 | Method and device for controlling Bluetooth equipment to play |
| CN111147907B (en) * | 2019-12-26 | 2022-05-10 | 深圳市优必选科技股份有限公司 | Method, device and system for synchronously playing multiple intelligent terminals and intelligent terminal |
| CN111343620A (en) * | 2020-02-28 | 2020-06-26 | 捷开通讯(深圳)有限公司 | Multi-device audio playing correction method, device and terminal |
| CN111556467B (en) * | 2020-03-31 | 2023-08-08 | 惠州市德赛西威汽车电子股份有限公司 | Mobile phone interconnection audio playing processing method |
| CN111526145B (en) * | 2020-04-24 | 2022-04-08 | 广州华多网络科技有限公司 | Method, device, system, equipment and storage medium for audio transmission feedback |
| CN112073791A (en) * | 2020-08-03 | 2020-12-11 | 上海商泰汽车信息系统有限公司 | Playing synchronization method and device, storage medium and user side |
| CN112449285A (en) * | 2020-12-15 | 2021-03-05 | 广州市登宝路电器有限公司 | Method and system for synchronously playing multiple sound boxes |
| CN117040677B (en) * | 2023-09-15 | 2024-06-14 | 深圳旷世科技有限公司 | Synchronization method, synchronization device and equipment for multichannel data transmission |
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