CN105306110A - Methods and system for realizing music synchronous play - Google Patents
Methods and system for realizing music synchronous play Download PDFInfo
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Abstract
The invention discloses methods and a system for realizing music synchronous play, belonging to the field of multimedia file play. The method comprises steps that firstly, a sending terminal acquires an audio file and a timestamp, and stores the audio file and the timestamp in a first digital signal processor; the sending terminal encodes the audio file and the timestamp so as to generate a Bluetooth file and sends the Bluetooth file to a receiving terminal through a Bluetooth network; the receiving terminal receives and decodes the Bluetooth file and stores the audio file and timestamp acquired through decoding in a second digital signal processor; and the sending terminal and the receiving terminal separately play the audio files stored in the first digital signal processor and the second digital signal processor according to the timestamps. Through adoption of the method and system for realizing music synchronous play, the sending terminal and the receiving terminal play the music synchronously, and the synchronous play time difference, which is less than 1 millisecond, is very small and reaches the microsecond level.
Description
Technical field
The present invention relates to multimedia file and play field, particularly a kind of method and system realizing synchronous music and play.
Background technology
The existing method realizing synchronous music broadcasting is: the bluetooth setting up multiple stage mobile phone connects; Arrange the division of labor of multiple stage mobile phone multichannel, a sound channel is responsible for by a mobile phone; Multiple stage mobile phone coordinates plays multichannel sterego, and wherein, multiple stage mobile phone coordinates the step playing multichannel sterego to comprise: the voice data parsing multichannel in audio file in the first mobile phone; Connected the audio data transmission of multichannel in the first mobile phone to other mobile phones by bluetooth; First mobile phone starts to play first sound audio data, is connected simultaneously send synchronized timestamp to other mobile phones by bluetooth; After other mobile phones receive the synchronized timestamp of the first mobile phone, play other channel audio data according to this timestamp; First mobile phone timing sends synchronized timestamp to other mobile phones, and other channel audio data that homographic solution is separated out, until all voice datas finish.
The defect of prior art is: after audio file is sent to other mobile phones, be stored in the memory of other mobile phones, when other mobile phones are play according to the synchronized timestamp audio file read in memory, because the reasons such as addressing can cause the time delay of hundred Milliseconds, make the broadcasting of other mobile phones and the first mobile phone asynchronous, stereophonic effect is poor.
Summary of the invention
The invention provides a kind of method and system realizing synchronous music and play, be intended to solve prior art because the reasons such as addressing cause the broadcasting of other mobile phones and the first mobile phone asynchronous and the technical problem of stereophonic effect difference.
The present invention is achieved in that a kind of method realizing synchronous music and play, and the described method realizing synchronous music broadcasting comprises:
Obtain audio file and timestamp, and described audio file and described timestamp are stored in the first digital signal processor;
Encode to generate bluetooth file to described audio file and described timestamp;
Described bluetooth file is sent to receiving terminal by blueteeth network;
According to described timestamp, the audio file be stored in described first digital signal processor is play.
Another object of the present invention is to provide a kind of method realizing synchronous music and play, the described method realizing synchronous music broadcasting comprises:
The bluetooth file of transmitting terminal transmission is received by blueteeth network;
Decode to obtain audio file and timestamp to described bluetooth file;
Described audio file and described timestamp are stored in the second digital signal processor;
According to described timestamp, the audio file be stored in described second digital signal processor is play.
Another object of the present invention is to provide a kind of method realizing synchronous music and play, the described method realizing synchronous music broadcasting comprises:
Transmitting terminal obtains audio file and timestamp, and is stored in the first digital signal processor by described audio file and described timestamp;
Described transmitting terminal encodes to generate bluetooth file to described audio file and described timestamp;
Described bluetooth file is sent to receiving terminal by blueteeth network by described transmitting terminal;
Described receiving terminal receives described bluetooth file by described blueteeth network;
Described receiving terminal decodes to obtain described audio file and described timestamp to described bluetooth file;
Described audio file and described timestamp are stored in the second digital signal processor by described receiving terminal;
Described transmitting terminal is play the audio file be stored in described first digital signal processor according to described timestamp;
Described receiving terminal is play the audio file be stored in described second digital signal processor according to described timestamp.
Another object of the present invention is to provide a kind of transmitting terminal, described transmitting terminal comprises:
First memory module, for obtaining audio file and timestamp, and is stored in the first digital signal processor by described audio file and described timestamp;
Coding module, for encoding to generate bluetooth file to described audio file and described timestamp;
Sending module, for being sent to receiving terminal by described bluetooth file by blueteeth network;
First playing module, for playing the audio file be stored in described first digital signal processor according to described timestamp.
Another object of the present invention is to provide a kind of receiving terminal, described receiving terminal comprises:
Receiver module, for receiving the bluetooth file that transmitting terminal sends by blueteeth network;
Decoder module, for decoding to obtain audio file and timestamp to described bluetooth file;
Second memory module, for being stored in the second digital signal processor by described audio file and described timestamp;
Second playing module, for playing the audio file be stored in described second digital signal processor according to described timestamp.
Another object of the present invention is to provide a kind of system realizing synchronous music and play, it is characterized in that, described system comprises above-mentioned transmitting terminal and above-mentioned receiving terminal.
The beneficial effect that technical solution of the present invention is brought is:
From the invention described above, because first transmitting terminal obtains audio file and timestamp, and audio file and timestamp are stored in the first digital signal processor; Transmitting terminal is encoded to generate bluetooth file to audio file and timestamp and bluetooth file is sent to receiving terminal by blueteeth network; Receiving terminal receives bluetooth file and carries out decoding and be stored in the second digital signal processor by the decode audio file that obtains and timestamp; Transmitting terminal and receiving terminal are play the audio file be stored in the first digital signal processor and the second digital signal processor according to timestamp respectively; Therefore, make transmitting terminal and receiving terminal synchronously play music, synchronous reproduction time difference is very little, is less than 1 millisecond and reaches delicate rank.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of a kind of flow chart of method realizing synchronous music and play that Fig. 1 provides for the embodiment of the present invention one;
A kind of another kind of flow chart of method realizing synchronous music and play that Fig. 2 provides for the embodiment of the present invention one;
A kind of method flow diagram realizing synchronous music and play that Fig. 3 provides for the embodiment of the present invention two;
A kind of method flow diagram realizing synchronous music and play that Fig. 4 provides for the embodiment of the present invention three;
A kind of structural representation of a kind of transmitting terminal that Fig. 5 provides for the embodiment of the present invention four;
The another kind of structural representation of a kind of transmitting terminal that Fig. 6 provides for the embodiment of the present invention four;
A kind of transmitting terminal first playing module structural representation that Fig. 7 provides for the embodiment of the present invention four;
A kind of structural representation of a kind of receiving terminal that Fig. 8 provides for the embodiment of the present invention five;
The another kind of structural representation of a kind of receiving terminal that Fig. 9 provides for the embodiment of the present invention five;
A kind of transmitting terminal second playing module structural representation that Figure 10 provides for the embodiment of the present invention five;
A kind of system configuration schematic diagram realizing synchronous music and play that Figure 11 provides for the embodiment of the present invention six.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
The embodiment of the present invention one provides a kind of method flow realizing synchronous music and play, and see Fig. 1, method comprises:
101: obtain audio file and timestamp, and audio file and timestamp are stored in the first digital signal processor.
In concrete enforcement, acquisition time stamp can be specially: the master clock according to bluetooth piconet obtains current time, obtains the time difference of estimating to play, and calculates anticipated playback time and rise time stamp according to current time and time difference.
102: encode to generate bluetooth file to audio file and timestamp.
In concrete enforcement, coding comprises SBC (SubBandCoding, sub-band coding), the coding such as APTX (AudioProcessingTechnology, audio process technology), AAC (AdvancedAudioCoding, Advanced Audio Coding).
103: bluetooth file is sent to receiving terminal by blueteeth network.
104: according to timestamp, the audio file be stored in the first digital signal processor is play.
In concrete enforcement, step 104 can comprise:
A. current time is obtained according to the master clock of bluetooth piconet.
B. judge whether current time mates with timestamp, if so, then performs next step.
C. the audio file be stored in the first digital signal processor is play.
Alternatively, as shown in Figure 2, before step 103, also step 101-2 is comprised.
101-2: form a bluetooth piconet with receiving terminal.
In concrete enforcement, after forming a bluetooth piconet with receiving terminal, also according to the master clock of the clock synchronous bluetooth piconet of main equipment.
In concrete enforcement, because the size of audio file is much larger than the memory space of the first digital signal processor, audio file can be divided into multiple subfile, then process each subfile successively, concrete processing method is if step 101 is to step 104.
In concrete enforcement, audio file and timestamp are stored to after in the first digital signal processor, carry out two handling processes simultaneously.One, encodes to generate bluetooth file to audio file and timestamp, then by blueteeth network, bluetooth file is sent to receiving terminal in delay buffer; Its two, according to timestamp, audio frequency process, calibration sample rate and digital-to-analogue conversion displaying audio file are carried out to audio file.
Audio file and timestamp by first obtaining audio file and timestamp, and are stored in the first digital signal processor by the present embodiment; Then encode to generate bluetooth file to audio file and timestamp; Again bluetooth file is sent to receiving terminal by blueteeth network; Finally play the audio file be stored in the first digital signal processor according to timestamp, therefore, make transmitting terminal and receiving terminal synchronously play music, synchronous reproduction time difference is very little, is less than 1 millisecond and reaches delicate rank.
Embodiment two
The embodiment of the present invention two provides a kind of method flow realizing synchronous music and play, and see Fig. 3, method comprises:
301: form a bluetooth piconet with transmitting terminal.
In concrete enforcement, set up after bluetooth is connected in same bluetooth piconet with transmitting terminal, also according to the master clock of the clock synchronous bluetooth piconet of main equipment.
302: the bluetooth file being received transmitting terminal transmission by blueteeth network.
303: decode to obtain audio file and timestamp to bluetooth file.
304: audio file and timestamp are stored in the second digital signal processor.
In concrete enforcement, because audio file is comparatively large, can by multiple bytes store of the beginning of timestamp and audio file in the second digital signal processor.
305: according to timestamp, the audio file be stored in the second digital signal processor is play.
In concrete enforcement, step 305 can comprise:
A. current time is obtained according to the master clock of bluetooth piconet.
B. judge whether current time mates with timestamp, if so, then performs next step.
C. the audio file be stored in the second digital signal processor is play.
In concrete enforcement, because the size of audio file is much larger than the memory space of the second digital signal processor, audio file can be divided into multiple subfile, then process each subfile successively, concrete processing method is if step 301 is to step 305.
In concrete enforcement, after receiving the bluetooth file of transmitting terminal transmission, in decoder and timestamp decoder, audio file and timestamp are decoded respectively, then according to timestamp, audio frequency process, calibration sample rate and digital-to-analogue conversion are carried out and displaying audio file to audio file.
First the present embodiment by forming a bluetooth piconet with transmitting terminal; Then the bluetooth file of transmitting terminal transmission is received by blueteeth network; Decode to obtain audio file and timestamp to bluetooth file; Again audio file and timestamp are stored in the second digital signal processor; Finally according to timestamp, the audio file be stored in the second digital signal processor is play; Therefore, make transmitting terminal and receiving terminal synchronously play music, synchronous reproduction time difference is very little, is less than 1 millisecond and reaches delicate rank.
Embodiment three
The embodiment of the present invention three provides a kind of method flow realizing synchronous music and play, and see Fig. 4, method comprises:
401: receiving terminal and transmitting terminal form a bluetooth piconet.
In concrete enforcement, receiving terminal and transmitting terminal are set up after bluetooth is connected in same bluetooth piconet, also according to the master clock of the clock synchronous bluetooth piconet of main equipment.
402: transmitting terminal obtains audio file and timestamp, and audio file and timestamp is stored in the first digital signal processor.
403: transmitting terminal encodes to generate bluetooth file to audio file and timestamp.
404: bluetooth file is sent to receiving terminal by blueteeth network by transmitting terminal.
405: receiving terminal receives bluetooth file by blueteeth network.
406: receiving terminal decodes to obtain audio file and timestamp to bluetooth file.
407: audio file and timestamp are stored in the second digital signal processor by receiving terminal.
408-1: transmitting terminal is play the audio file be stored in the first digital signal processor according to timestamp.
408-2: receiving terminal is play the audio file be stored in the second digital signal processor according to timestamp.
In concrete enforcement, step 408-1 can comprise:
A. transmitting terminal obtains current time according to the master clock of bluetooth piconet.
B. transmitting terminal judges whether current time mates with timestamp, if so, then performs next step.
C. transmitting terminal is play the audio file be stored in the first digital signal processor.
In concrete enforcement, step 408-2 can comprise:
A. receiving terminal obtains current time according to the master clock of bluetooth piconet.
B. receiving terminal judges whether current time mates with timestamp, if so, then performs next step.
C. receiving terminal is play the audio file be stored in the second digital signal processor.
In concrete enforcement, because audio file is much larger than the memory space of the first digital signal processor and the second data signal processor, audio file can be divided into multiple subfile, then process each subfile successively, concrete processing method is if step 401 is to step 408-2.
The present embodiment passes through first transmitting terminal and obtains audio file and timestamp, and is stored in the first digital signal processor by audio file and timestamp; Transmitting terminal is encoded to generate bluetooth file to audio file and timestamp and bluetooth file is sent to receiving terminal by blueteeth network; Receiving terminal receives bluetooth file and carries out decoding and be stored in the second digital signal processor by the decode audio file that obtains and timestamp; Transmitting terminal and receiving terminal are play the audio file be stored in the first digital signal processor and the second digital signal processor according to timestamp respectively; Therefore, make transmitting terminal and receiving terminal synchronously play music, synchronous reproduction time difference is very little, is less than 1 millisecond and reaches delicate rank.
Embodiment four
With embodiment one provide a kind of to realize the method that synchronous music plays corresponding, present invention also offers a kind of transmitting terminal 50, as shown in Figure 5, comprise the first memory module 510, coding module 520, sending module 530 and the first playing module 540.
First memory module 510, for obtaining audio file and timestamp, and is stored in audio file and timestamp in the first digital signal processor.
Coding module 520, for encoding to generate bluetooth file to audio file and timestamp.
Sending module 530, for being sent to receiving terminal by bluetooth file by blueteeth network.
First playing module 540, for playing the audio file be stored in the first digital signal processor according to timestamp.
Alternatively, as shown in Figure 6, a kind of transmitting terminal 60 also comprises the first link block 550.
First link block 550, for forming a bluetooth piconet with receiving terminal.
Wherein, as shown in Figure 7, the first playing module 540 can comprise the first acquiring unit 541, first judging unit 542 and the first broadcast unit 543.
First acquiring unit 541, obtains current time for the master clock according to bluetooth piconet.
First judging unit 542, for judging whether current time mates with timestamp.
First broadcast unit 543, for playing the audio file be stored in the first digital signal processor.
Audio file and timestamp by first obtaining audio file and timestamp, and are stored in the first digital signal processor by the present embodiment; Then encode to generate bluetooth file to audio file and timestamp; Again bluetooth file is sent to receiving terminal by blueteeth network; Finally play the audio file be stored in the first digital signal processor according to timestamp, therefore, make transmitting terminal and receiving terminal synchronously play music, synchronous reproduction time difference is very little, is less than 1 millisecond and reaches delicate rank.
Embodiment five
With embodiment two provide a kind of to realize the method that synchronous music plays corresponding, present invention also offers a kind of receiving terminal 80, as shown in Figure 8, comprise receiver module 810, decoder module 820, second memory module 830 and the second playing module 840.
Receiver module 810, for receiving the bluetooth file that transmitting terminal sends by blueteeth network.
Decoder module 820, for decoding to obtain audio file and timestamp to bluetooth file.
Second memory module 830, for being stored in audio file and timestamp in the second digital signal processor.
Second playing module 840, for playing the audio file be stored in the second digital signal processor according to timestamp.
Alternatively, as shown in Figure 9, a kind of receiving terminal 90 also comprises the second link block 850.
Second link block 850, for forming a bluetooth piconet with transmitting terminal.
Wherein, as shown in Figure 10, the second playing module 840 can comprise second acquisition unit 841, second judging unit 842 and the second broadcast unit 843.
Second acquisition unit 841, obtains current time for the master clock according to bluetooth piconet.
Second judging unit 842, for judging whether current time mates with timestamp.
Second broadcast unit 843, for playing the audio file be stored in the second digital signal processor.
First the present embodiment by forming a bluetooth piconet with transmitting terminal; Then the bluetooth file of transmitting terminal transmission is received by blueteeth network; Decode to obtain audio file and timestamp to bluetooth file; Again audio file and timestamp are stored in the second digital signal processor; Finally according to timestamp, the audio file be stored in the second digital signal processor is play; Therefore, make transmitting terminal and receiving terminal synchronously play music, synchronous reproduction time difference is very little, is less than 1 millisecond and reaches delicate rank.
Embodiment six
With a kind of to realize method the 3rd embodiment that synchronous music plays corresponding, present invention also offers a kind of system 1100 realizing synchronous music and play, comprise above-mentioned transmitting terminal (50 or 60) and above-mentioned receiving terminal (80 or 90).
The present embodiment passes through first transmitting terminal and obtains audio file and timestamp, and is stored in the first digital signal processor by audio file and timestamp; Transmitting terminal is encoded to generate bluetooth file to audio file and timestamp and bluetooth file is sent to receiving terminal by blueteeth network; Receiving terminal receives bluetooth file and carries out decoding and be stored in the second digital signal processor by the decode audio file that obtains and timestamp; Transmitting terminal and receiving terminal are play the audio file be stored in the first digital signal processor and the second digital signal processor according to timestamp respectively; Therefore, make transmitting terminal and receiving terminal synchronously play music, synchronous reproduction time difference is very little, is less than 1 millisecond and reaches delicate rank.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. realize the method that synchronous music is play, it is characterized in that, the described method realizing synchronous music broadcasting comprises:
Obtain audio file and timestamp, and described audio file and described timestamp are stored in the first digital signal processor;
Encode to generate bluetooth file to described audio file and described timestamp;
Described bluetooth file is sent to receiving terminal by blueteeth network;
According to described timestamp, the audio file be stored in described first digital signal processor is play.
2. according to claim 1 realize synchronous music play method, it is characterized in that, described described bluetooth file is sent to the step of receiving terminal by blueteeth network before further comprising the steps of:
A bluetooth piconet is formed with described receiving terminal.
3. the method realizing synchronous music and play according to claim 2, is characterized in that, describedly to comprise the step that the audio file be stored in described first digital signal processor is play according to described timestamp:
Master clock according to described bluetooth piconet obtains current time;
Judge whether described current time mates with described timestamp, if so, then performs next step;
The audio file be stored in described first digital signal processor is play.
4. realize the method that synchronous music is play, it is characterized in that, the described method realizing synchronous music broadcasting comprises:
The bluetooth file of transmitting terminal transmission is received by blueteeth network;
Decode to obtain audio file and timestamp to described bluetooth file;
Described audio file and described timestamp are stored in the second digital signal processor;
According to described timestamp, the audio file be stored in described second digital signal processor is play.
5. the method realizing synchronous music and play according to claim 4, is characterized in that, further comprising the steps of before the step of the described bluetooth file by the transmission of blueteeth network reception transmitting terminal:
A bluetooth piconet is formed with described transmitting terminal.
6. the method realizing synchronous music and play according to claim 5, is characterized in that, describedly to comprise the step that the audio file be stored in described second digital signal processor is play according to described timestamp:
Master clock according to described bluetooth piconet obtains current time;
Judge whether described current time mates with described timestamp, if so, then performs next step;
The audio file be stored in described second digital signal processor is play.
7. realize the method that synchronous music is play, it is characterized in that, the described method realizing synchronous music broadcasting comprises:
Transmitting terminal obtains audio file and timestamp, and is stored in the first digital signal processor by described audio file and described timestamp;
Described transmitting terminal encodes to generate bluetooth file to described audio file and described timestamp;
Described bluetooth file is sent to receiving terminal by blueteeth network by described transmitting terminal;
Described receiving terminal receives described bluetooth file by described blueteeth network;
Described receiving terminal decodes to obtain described audio file and described timestamp to described bluetooth file;
Described audio file and described timestamp are stored in the second digital signal processor by described receiving terminal;
Described transmitting terminal is play the audio file be stored in described first digital signal processor according to described timestamp;
Described receiving terminal is play the audio file be stored in described second digital signal processor according to described timestamp.
8. the method realizing synchronous music and play according to claim 7, it is characterized in that, described transmitting terminal is further comprising the steps of described bluetooth file is sent to the step of receiving terminal by blueteeth network before:
Described receiving terminal and described transmitting terminal form a bluetooth piconet.
9. the method realizing synchronous music and play according to claim 8, it is characterized in that, described transmitting terminal is carried out broadcasting according to described timestamp to the audio file be stored in described first digital signal processor and is comprised:
Described transmitting terminal obtains current time according to the master clock of described bluetooth piconet;
Described transmitting terminal judges whether described current time mates with described timestamp, if so, then performs next step;
Described transmitting terminal is play the audio file be stored in described first digital signal processor.
10. the method realizing synchronous music and play according to claim 8, it is characterized in that, described receiving terminal carries out broadcasting according to described timestamp to the audio file be stored in described second digital signal processor and comprises:
Described receiving terminal obtains current time according to the master clock of described bluetooth piconet;
Described receiving terminal judges whether described current time mates with described timestamp, if so, then performs next step;
Described receiving terminal is play the audio file be stored in described second digital signal processor.
11. 1 kinds of transmitting terminals, is characterized in that, described transmitting terminal comprises:
First memory module, for obtaining audio file and timestamp, and is stored in the first digital signal processor by described audio file and described timestamp;
Coding module, for encoding to generate bluetooth file to described audio file and described timestamp;
Sending module, for being sent to receiving terminal by described bluetooth file by blueteeth network;
First playing module, for playing the audio file be stored in described first digital signal processor according to described timestamp.
12. transmitting terminals according to claim 11, is characterized in that, also comprise:
First link block, for forming a bluetooth piconet with described receiving terminal.
13. transmitting terminals according to claim 12, is characterized in that, described first playing module comprises:
First acquiring unit, obtains current time for the master clock according to described bluetooth piconet;
First judging unit, for judging whether described current time mates with described timestamp;
First broadcast unit, for playing the audio file be stored in described first digital signal processor.
14. 1 kinds of receiving terminals, is characterized in that, described receiving terminal comprises:
Receiver module, for receiving the bluetooth file that transmitting terminal sends by blueteeth network;
Decoder module, for decoding to obtain audio file and timestamp to described bluetooth file;
Second memory module, for being stored in the second digital signal processor by described audio file and described timestamp;
Second playing module, for playing the audio file be stored in described second digital signal processor according to described timestamp.
15. receiving terminals according to claim 14, is characterized in that, also comprise:
Second link block, for forming a bluetooth piconet with described transmitting terminal.
16. receiving terminals according to claim 15, is characterized in that, described second playing module comprises:
Second acquisition unit, obtains current time for the master clock according to described bluetooth piconet;
Second judging unit, for judging whether described current time mates with described timestamp;
Second broadcast unit, for playing the audio file be stored in described second digital signal processor.
17. 1 kinds of systems realizing synchronous music and play, it is characterized in that, described system comprises the transmitting terminal as described in claim 11-13 any one and the receiving terminal as described in claim 14-16 any one.
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