CN115119112A - Method and device for synchronously playing sound boxes - Google Patents
Method and device for synchronously playing sound boxes Download PDFInfo
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- CN115119112A CN115119112A CN202210807818.9A CN202210807818A CN115119112A CN 115119112 A CN115119112 A CN 115119112A CN 202210807818 A CN202210807818 A CN 202210807818A CN 115119112 A CN115119112 A CN 115119112A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
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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
- H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging
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Abstract
The invention provides a method and a device for synchronously playing sound boxes, wherein the method is applied to a first sound box and at least one second sound box and comprises the following steps: the audio data packet is obtained through the first loudspeaker box and is analyzed into audio data of a plurality of different sound channels. The audio data are divided into first audio data played through a first sound box and second audio data played through a second sound box. And sending the second audio data to a second loudspeaker box. And determining the time difference of the first loudspeaker box and the second loudspeaker box for playing the audio according to the feedback information of the second loudspeaker box. And carrying out playing adjustment according to the time difference so as to realize synchronous playing of the first sound box and the second sound box. Compared with the prior art, the method and the device for synchronously playing the sound boxes have the advantages of synchronously playing audio and improving the experience of audiences.
Description
Technical Field
The invention belongs to the technical field of synchronous playing of sound boxes, and particularly relates to a method and a device for synchronous playing of sound boxes.
Background
With the development of digital wireless audio transmission technology, bluetooth audio transmission technology is widely used. In pursuit of an elegant audio-visual experience, more and more people choose to bring multiple bluetooth speaker devices into the home.
In the prior art, two methods are mostly adopted to realize the synchronous playing of a plurality of sound boxes. One is that the first sound box is connected to other sound boxes through an audio data line, and the first sound box sends audio data to other sound boxes through the data line. In addition, the first sound box sends the audio data to other sound boxes through a wireless channel, and due to the influence of a wireless network, the implementation of a synchronous playing algorithm is complex, and the audio still has a time difference problem, so that the auditory experience is influenced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a method and a device for synchronously playing sound boxes, and the method and the device have the advantages of synchronously playing audio and improving the experience of audiences.
The method is realized by the following technical scheme:
a method for synchronously playing sound boxes is applied to a first sound box and at least one second sound box and comprises the following steps:
acquiring an audio data packet through the first loudspeaker and analyzing the audio data packet into audio data of a plurality of different sound channels;
dividing the audio data into first audio data played through the first sound box and second audio data played through the second sound box;
sending the second audio data to the second loudspeaker box;
determining the time difference of the first sound box and the second sound box for playing audio according to the feedback information of the second sound box;
and carrying out playing adjustment according to the time difference so as to realize synchronous playing of the first sound box and the second sound box.
In one embodiment, the step of obtaining the audio data packet comprises:
starting a plurality of sound boxes and establishing communication connection among the sound boxes;
establishing communication connection between a preset control end and any sound box;
and setting the sound box which is in communication connection with the preset control end as a first sound box, and setting other sound boxes except the first sound box as second sound boxes.
In a specific embodiment, the first speaker records a first time at which the second audio data is sent to the second speaker; the feedback information comprises a second time when the second sound box receives the second audio data;
determining the time difference of the first sound box and the second sound box for playing audio according to the feedback information of the second sound box comprises:
and acquiring the time difference of the first loudspeaker box and the second loudspeaker box in audio playing according to the first time and the second time.
In a specific embodiment, the first speaker records a first time at which audio is played; the feedback information comprises a second time for the second sound box to play audio;
determining the time difference of the first sound box and the second sound box for playing audio according to the feedback information of the second sound box comprises:
and acquiring the time difference of the first loudspeaker box and the second loudspeaker box in audio playing according to the first time and the second time.
In a specific embodiment, the number of the second speakers is multiple, and different second speakers receive different second audio data; each second sound box corresponds to the independent second time;
the playing adjustment according to the time difference comprises the following steps:
delaying the playing of the plurality of second sound boxes according to the second time so as to realize the synchronous playing of the plurality of second sound boxes;
and according to the first time and the maximum second time, delaying the playing of the first sound box so as to realize the synchronous playing of the first sound box and the second sound box.
In a specific embodiment, the first speaker and/or the second speaker implement a delay by filling null data in the audio data, so as to implement synchronous playing of the first speaker and the second speaker.
In a specific embodiment, the data amount of the null data is obtained by the following formula:
the data amount of the null data is the sampling rate and the time difference of playing the audio.
The utility model provides a device of synchronous broadcast of audio amplifier, is applied to first audio amplifier and at least one second audio amplifier, includes:
the analysis module is used for acquiring an audio data packet through the first loudspeaker and analyzing the audio data packet into audio data of a plurality of different sound channels;
the distinguishing module is used for distinguishing the audio data into first audio data played through the first sound box and second audio data played through the second sound box;
the sending module is used for sending the second audio data to the second loudspeaker box;
the determining module is used for determining the time difference of the first sound box and the second sound box for playing the audio according to the feedback information of the second sound box;
and the synchronization module is used for carrying out playing adjustment according to the time difference so as to realize the synchronous playing of the first sound box and the second sound box.
In a specific embodiment, the method further comprises the following steps: the initialization module is used for starting the plurality of sound boxes before the audio data packet is acquired and establishing communication connection among the plurality of sound boxes;
establishing communication connection between a preset control end and any sound box;
and setting the sound box which is in communication connection with the preset control end as a first sound box, and setting other sound boxes except the first sound box as second sound boxes.
In a specific embodiment, the determining module includes:
the acquisition module is used for acquiring first time for the first sound box to send the second audio data or play audio; acquiring second time for the second sound box to receive the second audio data or play audio in the feedback information;
and the calculation module is used for acquiring the time difference of the first loudspeaker box and the second loudspeaker box in audio playing according to the first time and the second time.
The invention has at least the following beneficial effects:
the invention provides a method and a device for synchronously playing sound boxes, wherein the method is applied to a first sound box and at least one second sound box and comprises the following steps: the audio data packet is obtained through the first loudspeaker box and is analyzed into audio data of a plurality of different sound channels. The audio data are divided into first audio data played through the first loudspeaker and second audio data played through the second loudspeaker. And sending the second audio data to a second loudspeaker box. And determining the time difference of the first loudspeaker box and the second loudspeaker box for playing the audio according to the feedback information of the second loudspeaker box. And carrying out playing adjustment according to the time difference so as to realize synchronous playing of the first sound box and the second sound box. Compared with the prior art, the method and the device for synchronously playing the sound boxes have the advantages of synchronously playing audio and improving the experience of audiences.
Furthermore, the device for synchronously playing the sound boxes is provided with modules such as an analysis module, a distinguishing module and a sending module, and the sound boxes are synchronously played through the cooperation of the modules.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a method for synchronously playing sound boxes;
FIG. 2 is a schematic diagram of audio playing of a method for synchronous playing of speakers;
FIG. 3 is a schematic diagram of a synchronous playing method for a speaker system;
fig. 4 is a schematic block diagram of a synchronous speaker playback device.
Reference numerals:
1-an analysis module; 2-a distinguishing module; 3-a sending module; 4-determining a module; 5-a synchronization module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a method and a device for synchronously playing sound boxes, wherein the method is applied to a first sound box and at least one second sound box and comprises the following steps: the audio data packet is obtained through the first loudspeaker box and is analyzed into audio data of a plurality of different sound channels. The audio data are divided into first audio data played through a first sound box and second audio data played through a second sound box. And sending the second audio data to a second loudspeaker box. And determining the time difference of the first loudspeaker box and the second loudspeaker box for playing the audio according to the feedback information of the second loudspeaker box. And carrying out playing adjustment according to the time difference so as to realize synchronous playing of the first sound box and the second sound box.
Compared with the prior art, the method and the device for synchronously playing the sound boxes have the advantages of synchronously playing audio and improving the experience of audiences.
Example 1
As shown in fig. 1-3, a method for synchronously playing sound boxes, applied to a first sound box and at least one second sound box, includes:
s1: the audio data packet is obtained through the first loudspeaker box and is analyzed into audio data of a plurality of different sound channels.
And S2, dividing the audio data into first audio data played through the first sound box and second audio data played through the second sound box.
And S3, sending the second audio data to a second sound box.
And S4, determining the time difference of the audio playing of the first sound box and the second sound box according to the feedback information of the second sound box.
And S5, performing playing adjustment according to the time difference to realize synchronous playing of the first sound box and the second sound box.
The method for synchronously playing the sound boxes has the advantages of synchronously playing the audio and improving the experience of audiences.
As shown in fig. 1 to 3, the step before S1 "acquiring audio data packets by the first speaker and parsing the audio data packets into audio data of a plurality of different channels" includes: and starting the plurality of sound boxes and establishing communication connection among the plurality of sound boxes. And establishing communication connection between the preset control end and any sound box. And setting the sound box which is in communication connection with the preset control end as a first sound box, and setting other sound boxes except the first sound box as second sound boxes.
Specifically, between audio amplifier and the audio amplifier, audio amplifier and predetermine between the control end and can carry out communication connection through wireless mode such as bluetooth, infrared, WIFI direct connection, WIFI focus or WIFI. In one embodiment, the plurality of speakers are connected in communication via bluetooth, and the time that bluetooth outputs to the second speaker may be reported via a bluetooth protocol. The preset control end is in communication connection with one loudspeaker box through WIFI or Bluetooth. The preset control end can be an electronic device such as a mobile phone and a tablet.
Wherein, S2 "divide audio data into the first audio data that carry out the broadcast through first audio amplifier and through the second audio data of second audio amplifier broadcast" first audio data save in first audio amplifier, first audio amplifier can be according to first audio data broadcast audio frequency.
Before S4 "determining the time difference between the audio playing of the first sound box and the audio playing of the second sound box according to the feedback information of the second sound box", further comprising:
recording the first time when the first sound box sends the second audio data to the second sound box or the first sound box to play audio. And acquiring second time for the second sound box to receive the second audio data or the second sound box to play audio in the feedback information.
Determining the time difference of the audio playing of the first loudspeaker box and the second loudspeaker box according to the first time and the second time in the feedback information of the second loudspeaker box comprises: and acquiring the time difference of the first loudspeaker box and the second loudspeaker box for playing the audio according to the first time and the second time.
In one embodiment, the first speaker records a first time at which the second audio data is sent to the second speaker; the feedback information includes a second time when the second sound box receives the second audio data. Determining the time difference of the audio playing of the first sound box and the second sound box according to the feedback information of the second sound box comprises: and acquiring the time difference of the first loudspeaker box and the second loudspeaker box for playing the audio according to the first time and the second time.
In another embodiment, a first speaker records a first time at which audio is played; the feedback information comprises a second time for the second sound box to play the audio. Determining the time difference between the first loudspeaker box and the second loudspeaker box for playing the audio according to the feedback information of the second loudspeaker box comprises: and acquiring the time difference of the first loudspeaker box and the second loudspeaker box for playing the audio according to the first time and the second time.
The number of the second sound boxes can be one or more, when one second sound box is used, the first sound box only needs to be delayed according to the second sound box, and therefore synchronous playing of the first sound box and the second sound box is achieved. When the number of the second sound boxes is multiple, different second sound boxes receive different second audio data; each second sound box corresponds to the independent second time. The adjusting the playing according to the time difference comprises: and delaying the playing of the plurality of second sound boxes according to the second time so as to realize the synchronous playing of the plurality of second sound boxes. And according to the first time and the maximum second time, the first sound box is delayed to play so as to realize synchronous play of the first sound box and the second sound box.
Specifically, the time between the first time and the second time from the reference point is determined by taking a certain fixed time point as the reference point. When the second sound box is one, the first sound box immediately sends the second audio data or the first sound box immediately plays audio according to the first audio data when the first sound box is analyzed into the first audio data and the second audio data, and at the moment, the first time distance datum point of the first sound box is 0 ms. When the second time distance reference point of the second sound box is 100ms, the first sound box needs to be delayed for 100ms so as to realize the synchronous playing of the first sound box and the second sound box.
When the first sound box is analyzed into the first audio data and the second audio data, the first sound box sends the second audio data or the first sound box needs a certain time to play audio according to the first audio data, when the first time distance datum point of the first sound box is 10ms and the second time distance datum point of the second sound box is 100ms, the first sound box needs to be delayed for 90ms, and therefore synchronous playing of the first sound box and the second sound box is achieved.
When the number of the second sound boxes is multiple, the second time distance reference point of the second sound box a is 100ms, and the second time distance reference point of another second sound box B is 200ms, the second time of the second sound box B with 200ms is selected to delay the second sound box a and the first sound box. If the first time distance datum point of the first sound box is 10ms, the first sound box is delayed for 190ms, and the second sound box A is delayed for 100 ms.
Wherein, "play the adjustment according to the time difference to realize the synchronous broadcast of first audio amplifier and second audio amplifier" includes: the first loudspeaker box and/or the second loudspeaker box realize time delay in a mode of filling null data in audio data so as to realize synchronous playing of the first loudspeaker box and the second loudspeaker box.
Specifically, when the second speaker is one, the first time distance reference point of the first speaker is 10ms, and the second time distance reference point of the second speaker is 100ms, then the first speaker needs to be filled with 90ms of null data, so as to realize the synchronous playing of the first speaker and the second speaker. When the second sound boxes are multiple, the first time distance reference point of the first sound box is 10ms, the second time distance reference point of the second sound box A is 100ms, the second time distance reference point of the other second sound box B is 200ms, and the second time of the second sound box with the distance reference point of 200ms is determined. Then the first speaker is filled with 190ms of null data and the second speaker a is filled with 100ms of null data to achieve the synchronous playing of the first speaker and the second speaker.
Wherein, the data volume of the null data is obtained by the following formula: the data amount of the null data is the audio playback sampling rate time difference. The sampling rate is the data volume of the audio played in the unit time of the sound box. For example, the sampling rate of the first speaker and the second speaker is 2 bits per millisecond, and the data amount of filling the first speaker with 190ms of null data is: 190 x 2 ═ 380 bit. The data amount of the second speaker a filled with the null data of 100ms is: 100 x 2 ═ 200 bit.
The first audio data may be left channel audio data, right channel audio data, etc., and the second audio data may be left channel audio data, right channel audio data, etc. In one embodiment, the first audio data is left channel audio data and the second audio data is right channel audio data. In another embodiment, the first audio data is right channel audio data and the second audio data is left channel audio data.
Example 2
In this embodiment, on the basis of the method for synchronously playing sound boxes provided in embodiment 1, a device for synchronously playing sound boxes is provided, and is applied to a first sound box and at least one second sound box.
As shown in fig. 4, the device for synchronously playing sound boxes includes: and the analysis module 1 is used for acquiring the audio data packet through the first loudspeaker and analyzing the audio data packet into a plurality of audio data with different sound channels. And the distinguishing module 2 is used for distinguishing the audio data into first audio data played through the first loudspeaker box and second audio data played through the second loudspeaker box. And the sending module 3 is used for sending the second audio data to the second loudspeaker box.
And the determining module 4 is used for determining the time difference of the first loudspeaker box and the second loudspeaker box for playing the audio according to the feedback information of the second loudspeaker box. And the synchronization module 5 is used for performing playing adjustment according to the time difference so as to realize synchronous playing of the first sound box and the second sound box. The device for synchronously playing the sound boxes has the advantages of synchronously playing audio and improving the experience of audiences.
As shown in fig. 4, the device for synchronously playing sound boxes further includes:
and the initialization module is used for starting the plurality of sound boxes before the audio data packet is acquired and establishing communication connection among the plurality of sound boxes. And establishing communication connection between the preset control end and any sound box. And setting the sound box which is in communication connection with the preset control end as a first sound box, and setting other sound boxes except the first sound box as second sound boxes.
Wherein, the determining module 4 comprises:
the acquisition module is used for acquiring first time for the first loudspeaker box to send second audio data or play audio; acquiring second time for receiving second audio data or playing audio by a second sound box in the feedback information;
and the computing module is used for acquiring the time difference of the first loudspeaker box and the second loudspeaker box for playing the audio according to the first time and the second time.
The number of the second sound boxes is multiple, and different second sound boxes receive different second audio data; each second sound box corresponds to the independent second time.
The synchronization module 5 includes:
a first synchronization module: and the time delay playing module is used for playing the first sound box in a time delay manner according to the first time and the maximum second time so as to realize synchronous playing of the first sound box and the second sound box.
A second synchronization module: and the time delay playing module is used for playing the plurality of second sound boxes in a time delay manner according to the second time so as to realize the synchronous playing of the plurality of second sound boxes.
According to the method and the device for synchronously playing the sound boxes, the plurality of sound boxes are respectively in communication connection through the Bluetooth, one sound box in the plurality of sound boxes is set as a first sound box, other sound boxes are set as second sound boxes, and the first sound box and each second sound box are delayed to be played before respective audio data are played, so that the first sound box and each second sound box are synchronously played. Compared with the prior art, the loudspeaker box synchronous playing device has the advantages that wiring is not needed, the placement positions of the loudspeaker boxes can be changed at will, synchronous playing of all the loudspeaker boxes can be realized only by controlling the first loudspeaker box, the loudspeaker box synchronous playing device has the advantages of simple structure and convenience in operation, and the problem that wiring is needed in synchronous playing of the existing loudspeaker boxes is well solved. Secondly, the method for synchronous playing provided by the invention is simple to realize, and in the synchronous playing process, the first audio data and the second audio data have higher transmission stability and better synchronization effect, thereby greatly improving the use experience of users.
It will be understood by those skilled in the art that the modules or steps of the invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of computing devices, and optionally they may be implemented by program code executable by a computing device, such that it may be stored in a memory device and executed by a computing device, or it may be separately fabricated into various integrated circuit modules, or it may be fabricated by fabricating a plurality of modules or steps thereof into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.
The above disclosure is only a few specific implementation scenarios of the present invention, however, the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (10)
1. A method for synchronously playing sound boxes is applied to a first sound box and at least one second sound box, and is characterized by comprising the following steps:
acquiring an audio data packet through the first loudspeaker and analyzing the audio data packet into audio data of a plurality of different sound channels;
dividing the audio data into first audio data played through the first sound box and second audio data played through the second sound box;
sending the second audio data to the second loudspeaker box;
determining the time difference of the first sound box and the second sound box for playing audio according to the feedback information of the second sound box;
and carrying out playing adjustment according to the time difference so as to realize synchronous playing of the first sound box and the second sound box.
2. The method for synchronously playing sound boxes according to claim 1, wherein the step before acquiring the audio data packets comprises:
starting a plurality of sound boxes and establishing communication connection among the sound boxes;
establishing communication connection between a preset control end and any sound box;
and setting the sound box which is in communication connection with the preset control end as a first sound box, and setting other sound boxes except the first sound box as second sound boxes.
3. The method for synchronized playback of speakers according to claim 1, wherein the first speaker records a first time at which the second audio data is sent to the second speaker; the feedback information comprises a second time when the second sound box receives the second audio data;
determining the time difference of the first sound box and the second sound box for playing audio according to the feedback information of the second sound box comprises:
and acquiring the time difference of the first loudspeaker box and the second loudspeaker box in audio playing according to the first time and the second time.
4. The method for synchronized playback by speakers of claim 1, wherein the first speaker records a first time for playing the audio; the feedback information comprises a second time for the second sound box to play audio;
determining the time difference of the first sound box and the second sound box for playing audio according to the feedback information of the second sound box comprises:
and acquiring the time difference of the first loudspeaker box and the second loudspeaker box in audio playing according to the first time and the second time.
5. Method for synchronized playback of speakers according to claim 3 or 4,
the number of the second sound boxes is multiple, and different second sound boxes receive different second audio data; each second sound box corresponds to the respective independent second time;
the playing adjustment according to the time difference comprises the following steps:
delaying the playing of the plurality of second sound boxes according to the second time so as to realize the synchronous playing of the plurality of second sound boxes;
and according to the first time and the maximum second time, delaying the playing of the first sound box so as to realize the synchronous playing of the first sound box and the second sound box.
6. The method according to claim 1, wherein the first speaker and/or the second speaker implement a delay by filling null data in the audio data, so as to implement the synchronous playing of the first speaker and the second speaker.
7. The method for sound box synchronous playing according to claim 6, wherein the data amount of the null data is obtained by the following formula:
the data amount of the null data is the audio playback sampling rate.
8. The utility model provides a device of synchronous broadcast of audio amplifier, is applied to first audio amplifier and at least one second audio amplifier, its characterized in that includes:
the analysis module is used for acquiring an audio data packet through the first loudspeaker and analyzing the audio data packet into audio data of a plurality of different sound channels;
the distinguishing module is used for distinguishing the audio data into first audio data played through the first sound box and second audio data played through the second sound box;
the sending module is used for sending the second audio data to the second loudspeaker box;
the determining module is used for determining the time difference of the first sound box and the second sound box for playing the audio according to the feedback information of the second sound box;
and the synchronization module is used for carrying out playing adjustment according to the time difference so as to realize the synchronous playing of the first sound box and the second sound box.
9. The apparatus for synchronously playing sound boxes according to claim 8, further comprising: the initialization module is used for starting the plurality of sound boxes before the audio data packet is acquired and establishing communication connection among the plurality of sound boxes;
establishing communication connection between a preset control end and any sound box;
and setting the sound box which is in communication connection with the preset control end as a first sound box, and setting other sound boxes except the first sound box as second sound boxes.
10. The apparatus for synchronously playing sound boxes according to claim 8, wherein the determining module comprises:
the acquisition module is used for acquiring first time for the first sound box to send the second audio data or play audio; acquiring second time for receiving the second audio data or playing audio by the second sound box in the feedback information;
and the calculation module is used for acquiring the time difference of the first loudspeaker box and the second loudspeaker box in audio playing according to the first time and the second time.
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