CN115632731A - Synchronous playing strategy for multi-playing terminal - Google Patents
Synchronous playing strategy for multi-playing terminal Download PDFInfo
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- CN115632731A CN115632731A CN202211318296.2A CN202211318296A CN115632731A CN 115632731 A CN115632731 A CN 115632731A CN 202211318296 A CN202211318296 A CN 202211318296A CN 115632731 A CN115632731 A CN 115632731A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 210000005069 ears Anatomy 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/18—Arrangements for synchronising broadcast or distribution via plural systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/56—Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups H04H60/29-H04H60/54
- H04H60/58—Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups H04H60/29-H04H60/54 of audio
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
- H04H60/78—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by source locations or destination locations
Abstract
The invention discloses a multi-playing terminal synchronous playing strategy, which comprises the following steps: step 1: acquiring the physical position of each playing terminal; step 2: determining the playing coverage range of each playing terminal based on the physical position of the playing terminal according to the volume of a playing task of the audio to be played; and step 3: and dividing a plurality of play groups, synchronously playing the audio to be played by each play terminal in the same play group, and asynchronously playing the audio to be played by the play terminals in different play groups. The invention effectively avoids the pressure brought to the server by all the playing terminals to carry out synchronous playing, reduces the pressure of sending the audio data by the server, realizes synchronization in the playing coverage range, and has less delay and higher response speed and response efficiency compared with the synchronization of all the terminals.
Description
Technical Field
The invention relates to the technical field of audio synchronous playing processing, in particular to a synchronous playing strategy of a multi-playing terminal.
Background
In the process of simultaneously broadcasting a plurality of broadcasting terminals in the current broadcasting system, synchronous broadcasting is generally performed, so that each broadcasting terminal can synchronously broadcast corresponding audio according to time nodes. If all the playing terminals need to be synchronized, huge pressure is inevitably applied to a server which issues audio data, and further the synchronous playing effect is affected, so a better playing strategy is needed.
Disclosure of Invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a multi-play terminal synchronized play strategy that solves the problems described in the background.
The technical scheme for realizing the purpose of the invention is as follows: a multi-playing terminal synchronous playing strategy comprises the following steps:
step 1: acquiring the physical position of each playing terminal;
step 2: determining the playing coverage range of each playing terminal based on the physical position of the playing terminal according to the volume of a playing task of the audio to be played;
and step 3: in all the playing terminals, a plurality of playing terminals are preset as sub-center playing terminals, each sub-center playing terminal is in a playing coverage range far away from the other side,
dividing the rest of the playing terminals into a sub-center playing terminal according to the playing coverage, dividing each center playing terminal into at least one corresponding rest of the playing terminals, so that each sub-center playing terminal and other playing terminals are in the same playing group, and any playing terminal is divided into only one playing group,
and synchronously playing the audio to be played by each playing terminal in the same playing group, and asynchronously playing the audio to be played by the playing terminals in different playing groups.
Further, in step 1, the physical position of the play terminal is determined by satellite positioning, record positioning, or preset mark positioning.
Further, in step 2, the volume of the playback task of the audio to be played is determined according to the audio amplitude.
Further, the playing coverage is determined according to the lowest audio amplitude of the audio to be played or the average audio amplitude of the whole audio to be played.
Further, if the decibel value k of the audio at the position r away from the current playing terminal is less than or equal to the preset threshold, taking the current playing terminal as the center of a circle and an area with a radius of r as the playing coverage of the current playing terminal, and calculating the decibel value k of the audio at the position r away from the current playing terminal according to the following formula:
k＝10log(10,4 π )+20log(10,r) 。
furthermore, each playing terminal is internally provided with a pickup monitoring module, the current playing terminal is used as a center for audio playing, the surrounding playing terminals monitor the playing volume of the current playing terminal, so that the direct audio attenuation value of the current playing terminal and any surrounding playing terminal is determined, all the playing terminals with the audio attenuation values being larger than or equal to the preset attenuation value are determined as the playing coverage range of the current playing terminal, and each playing terminal is sequentially used as the current playing terminal, so that the playing coverage range of each playing terminal can be determined.
The beneficial effects of the invention are as follows: according to the invention, all the playing terminals in a small subregion can be played synchronously according to the playing coverage range, and the playing terminals in other subregions can be played synchronously or asynchronously with the playing terminal in the current subregion, so that the pressure of the server caused by the synchronous playing of all the playing terminals is effectively avoided, the pressure of sending the audio data by the server is reduced, and the realization of synchronization in the playing coverage range has less delay compared with the synchronization of all the terminals, and the response speed and the response efficiency are higher.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
fig. 2 is a schematic diagram illustrating distribution and division of each broadcasting terminal.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1, a strategy for synchronously playing a multi-playing terminal includes the following steps:
step 1: and acquiring the physical position of each playing terminal.
A plurality of playing terminals can be arranged in a certain area range such as a park, a tourist attraction and the like, so that audio can be played at different positions, and audio broadcasting in the area range is realized. The physical position of the playing terminal can be determined through satellite positioning, base station positioning, preset mark positioning and the like, and different playing terminals are placed at different physical positions.
Step 2: and determining the playing coverage range of each playing terminal based on the physical position of the playing terminal according to the volume of the playing task of the audio to be played.
The volume of the task of playing the audio to be played may be determined according to the audio amplitude, for example, a notification, a song, and so on audio is played, and the playing coverage range may be determined according to the lowest audio amplitude of the audio to be played or the average audio amplitude of the entire audio to be played, that is, it is accurate for human ears to clearly hear the audio to be played within the range.
If the decibel value k of the audio at the position r away from the current playing terminal is less than or equal to a preset threshold, taking the current playing terminal as the center of a circle and an area with the radius of r as the playing coverage range of the current playing terminal. Because the audio is attenuated when being transmitted in the air, the decibel value k of the audio at the distance r from the current playing terminal is calculated according to the following formula:
k＝10log(10,4 π )+20log(10,r)
in an optional embodiment, a pickup monitoring module is built in each of the playback terminals, and performs audio playback with the current playback terminal as a center, and the surrounding playback terminals monitor the playback volume of the current playback terminal, so as to determine a direct audio attenuation value between the current playback terminal and any one of the surrounding playback terminals, and determine all playback terminals whose audio attenuation values are greater than or equal to a preset attenuation value as the playback coverage of the current playback terminal. And sequentially taking each playing terminal as the current playing terminal, so that the playing coverage range of each playing terminal can be determined.
And step 3: in all the playing terminals, a plurality of playing terminals are preset as sub-center playing terminals, and each sub-center playing terminal is in a playing coverage range far away from the other side, that is, any sub-center playing terminal is not in the playing coverage range of any other center playing terminal.
And dividing the rest of the playing terminals into a certain sub-center playing terminal according to the playing coverage range, wherein each center playing terminal is divided into at least one corresponding rest of the playing terminals, so that each sub-center playing terminal and a plurality of other playing terminals are in the same playing group, and any playing terminal is only divided into one playing group.
And each playing terminal in the same playing group plays the audio to be played synchronously, and the playing terminals in different playing groups can play the audio to be played synchronously or asynchronously.
According to the playing coverage range, all playing terminals in a small sub-area can be played synchronously, and the playing terminals in other sub-areas can be played synchronously or asynchronously with the playing terminal in the current sub-area, so that the pressure of the server caused by synchronous playing of all the playing terminals is effectively avoided, the pressure of sending audio data of the server is reduced, and compared with the delay of all the terminals in synchronization, the response speed and the response efficiency are higher.
Referring to fig. 2, numerals 1 to 16 in the figure indicate respective play terminals, and it is assumed that the transmission delay of the No. 1 play terminal receiving the audio delivered from the server is 10ms (milliseconds), and the transmission delay at these play terminals is the smallest; the transmission delay of the 16 # broadcasting terminal for receiving the audio delivered by the server is 400ms (millisecond), and the transmission delay at these broadcasting terminals is the largest. If the existing audio synchronous playing method is adopted, the terminal 1 needs to wait 390ms after receiving the instruction (the 10 th ms receives the instruction) and then starts to play the audio together with the playing terminal 16, so that the playing efficiency of the synchronously played audio is low, except the playing terminal with the maximum transmission delay, all the other playing terminals need to start to play the audio together after receiving the audio data for a certain time, and the response speed and the efficiency of the playing terminals are low.
However, according to the present invention, it is assumed that the playback coverage is divided into 4 playback groups, for example, 1-7 are the first playback group, 8-10 are the second playback group, 11-13 are the third playback group, and 14-16 are the fourth playback group. Compared with the existing synchronous playing method, as the playing terminals in each playing group are only required to perform synchronous playing, the difference between the minimum transmission delay and the maximum transmission delay of the playing terminals in the same playing group is smaller, the response speed and the efficiency are higher, and the synchronous playing is more effective.
The invention can be used as built-in program processing software applied to terminals (such as sound boxes), thereby forming a new generation of information hardware terminals and better meeting the user experience.
The embodiments disclosed in this description are only an exemplification of the single-sided characteristics of the invention, and the scope of protection of the invention is not limited to these embodiments, and any other functionally equivalent embodiments fall within the scope of protection of the invention. Various other changes and modifications to the embodiments and concepts described above will be apparent to those skilled in the art, and all such changes and modifications are intended to be included within the scope of the appended claims.
Claims (6)
1. A multi-playing terminal synchronous playing strategy is characterized by comprising the following steps:
step 1: acquiring the physical position of each playing terminal;
step 2: determining the playing coverage range of each playing terminal based on the physical position of the playing terminal according to the volume of a playing task of the audio to be played;
and step 3: in all the playing terminals, a plurality of playing terminals are preset as sub-center playing terminals, each sub-center playing terminal is in a playing coverage range far away from the other side,
dividing the rest of the playing terminals into a sub-center playing terminal according to the playing coverage, dividing each center playing terminal into at least one corresponding rest of the playing terminals, so that each sub-center playing terminal and other playing terminals are in the same playing group, and any playing terminal is divided into only one playing group,
and synchronously playing the audio to be played by each playing terminal in the same playing group, and asynchronously playing the audio to be played by the playing terminals in different playing groups.
2. The strategy for synchronized playback of multiple playback terminals as claimed in claim 1, wherein in step 1, the physical location of the playback terminal is determined by satellite positioning, record positioning, or preset mark positioning.
3. The strategy for synchronously playing back multiple playing terminals as claimed in claim 1, wherein in step 2, the volume of the playing task of the audio to be played back is determined according to the amplitude of the audio.
4. The strategy for synchronized playback of multiple playback terminals as claimed in claim 1, wherein the playback coverage is determined according to the lowest audio amplitude of the audio to be played or the average audio amplitude of the entire audio to be played.
5. The strategy for synchronously playing the multiple playing terminals according to claim 1, wherein if the decibel value k of the audio at the distance r from the current playing terminal is less than or equal to the preset threshold, the area with the current playing terminal as the center of circle and the radius of r is taken as the playing coverage of the current playing terminal, and the decibel value k of the audio at the distance r from the current playing terminal is calculated according to the following formula:
k＝10log(10,4 π )+20log(10,r)。
6. the strategy for synchronously playing the multiple playing terminals according to claim 1, wherein a pickup monitoring module is built in each playing terminal, and audio playing is performed with a current playing terminal as a center, and the surrounding playing terminals monitor the playing volume of the current playing terminal, so as to determine the direct audio attenuation value between the current playing terminal and any one of the surrounding playing terminals, and all playing terminals with the audio attenuation value being greater than or equal to the preset attenuation value are determined as the playing coverage range of the current playing terminal, and each playing terminal is sequentially used as the current playing terminal, so as to determine the playing coverage range of each playing terminal.
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| CN202211318296.2A CN115632731B (en) | 2022-10-26 | 2022-10-26 | Synchronous playing strategy for multi-playing terminal |
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| CN202211318296.2A CN115632731B (en) | 2022-10-26 | 2022-10-26 | Synchronous playing strategy for multi-playing terminal |
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Cited By (1)
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| CN116961806A (en) * | 2023-09-21 | 2023-10-27 | 广东保伦电子股份有限公司 | Satellite time service-based flower and car audio synchronous broadcasting system, device and method |
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