CN115632731B - Synchronous playing strategy for multi-playing terminal - Google Patents
Synchronous playing strategy for multi-playing terminal Download PDFInfo
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- CN115632731B CN115632731B CN202211318296.2A CN202211318296A CN115632731B CN 115632731 B CN115632731 B CN 115632731B CN 202211318296 A CN202211318296 A CN 202211318296A CN 115632731 B CN115632731 B CN 115632731B
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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 synchronous playing strategy of a multi-playing terminal, 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 playing task volume of the audio to be played; step 3: 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 by synchronous playing of all the playing terminals to the server, reduces the audio data issuing pressure of the server, and has less delay and higher response speed and response efficiency compared with the synchronous playing of all the terminals when realizing the synchronization in the playing coverage range.
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 by using the current broadcasting system, synchronous broadcasting is generally performed, so that each broadcasting terminal can synchronously play corresponding audio according to a time node. If all the playing terminals need to be synchronized, huge pressure is necessarily caused to the server for issuing the audio data, and further the synchronous playing effect is affected, so that a better playing strategy is needed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a synchronous playing strategy of a multi-playing terminal, which can solve the problems described in the background art.
The technical scheme for realizing the purpose of the invention is as follows: a synchronous playing strategy of a multi-playing terminal 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 playing task volume of the audio to be played;
step 3: among all the playing terminals, a plurality of playing terminals are preset as sub-center playing terminals, each sub-center playing terminal is located in a playing coverage range far away from the other side,
dividing the rest of playing terminals into a certain sub-center playing terminal according to the playing coverage range, dividing at least one corresponding rest of playing terminal by each center playing terminal, so that each sub-center playing terminal and a plurality of other playing terminals are positioned in the same playing group, dividing any playing terminal into only one playing group,
each playing terminal in the same playing group synchronously plays the audio to be played, and the playing terminals in different playing groups asynchronously play the audio to be played.
Further, in the step 1, the physical position of the playing terminal is determined by adopting satellite positioning or recording positioning or preset mark positioning.
Further, in the step 2, the volume 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 distance r from the current playing terminal is less than or equal to the preset threshold value, taking the region with the radius r as the center of a circle of the current playing terminal as the playing coverage area of the current playing terminal, and calculating the decibel value k of the audio at the distance r from the current playing terminal according to the following formula:
k＝10log(10,4 π )+20log(10,r) 。
further, a pickup monitoring module is built in each playing terminal, the current playing terminal is used as a center for playing audio, surrounding playing terminals monitor the playing volume of the current playing terminal, so that the audio attenuation value of the current playing terminal and any surrounding playing terminal is determined, all the playing terminals with the audio attenuation value being larger than or equal to the preset attenuation value are regarded as the playing coverage range of the current playing terminal, each playing terminal is sequentially used as the current playing terminal, and 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 subarea can be synchronously played according to the playing coverage range, and the playing terminals in other subareas can be synchronously or asynchronously played with the playing terminals in the current subarea, so that the pressure brought by synchronous playing of all the playing terminals to a server is effectively avoided, the audio data issuing pressure of the server is reduced, and compared with the delay under the synchronization of all the terminals, the delay is less and the response speed and the response efficiency are higher.
Drawings
FIG. 1 is a schematic flow chart of the present invention;
fig. 2 is a schematic diagram of distribution and division of each playing terminal.
Detailed Description
The invention is further described with reference to the accompanying drawings and detailed description below:
as shown in fig. 1, a multi-play terminal synchronous play strategy 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 like a park, a tourist attraction and the like, so that audio can be played at different positions, and audio broadcasting in the area is realized. The physical location of the playing terminal can be determined by satellite positioning, base station positioning, preset mark positioning and the like, and different playing terminals are placed at different physical locations.
Step 2: and determining the playing coverage range of each playing terminal based on the physical position of the playing terminal according to the playing task volume of the audio to be played.
The volume of the audio to be played may be determined according to the audio amplitude, for example, playing a notification, a song, etc., and the playing coverage may be 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, that is, the audio to be played may be clearly heard by the human ear within the range.
If the decibel value k of the audio frequency at the distance r from the current playing terminal is less than or equal to a preset threshold value, taking the region with the radius r as the center of a circle of the current playing terminal as the playing coverage of the current playing terminal. Since the audio is attenuated when transmitted in 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 implementation manner, each playing terminal is internally provided with a pickup monitoring module, the current playing terminal is used as a center for playing audio, surrounding playing terminals monitor the playing volume of the current playing terminal, so that the audio attenuation value of the current playing terminal and any surrounding playing terminal is determined, and all playing terminals with the audio attenuation value larger than or equal to the preset attenuation value are regarded as the playing coverage range of the current playing terminal. And taking each playing terminal as the current playing terminal in turn, so that the playing coverage of each playing terminal can be determined.
Step 3: among all the playing terminals, a plurality of playing terminals are preset as sub-center playing terminals, and each sub-center playing terminal is located in a playing coverage range far away from the other side, namely, any sub-center playing terminal is not located in the playing coverage range of any other center playing terminal.
And dividing the rest of playing terminals into a certain sub-center playing terminal according to the playing coverage range, wherein each center playing terminal divides at least one corresponding rest of playing terminal, so that each sub-center playing terminal and a plurality of other playing terminals are positioned in the same playing group, and any playing terminal is divided into only one playing group.
Each playing terminal in the same playing group synchronously plays the audio to be played, and the playing terminals in different playing groups can synchronously or asynchronously play the audio to be played.
According to the method, all playing terminals in a small subarea can be synchronously played according to the playing coverage range, and playing terminals in other subareas can be synchronously or asynchronously played with the playing terminals in the current subarea, so that the pressure brought to a server by synchronous playing of all the playing terminals is effectively avoided, the audio data issuing pressure of the server is relieved, and compared with the delay under the synchronization of all the terminals, the delay is less in the playing coverage range, and the response speed and the response efficiency are higher.
Referring to fig. 2, numerals 1 to 16 in the drawing denote respective playback terminals, and it is assumed that the playback terminal No. 1 receives the transmission delay of the server-issued audio for 10ms (milliseconds), and the transmission delay at these playback terminals is minimum; the transmission delay of the audio transmitted by the server is 400ms (millisecond) when the 16 # playing terminal receives the audio, and the transmission delay of the audio is maximum at the 16 # playing terminals. If the existing audio synchronous playing method is adopted, the number 1 terminal needs to wait 390ms after receiving the instruction (the instruction is received in 10 ms) and then starts playing the audio together with the number 16 playing terminal, the playing efficiency of the synchronous playing audio is low, except for the playing terminal with the maximum transmission delay, all the other playing terminals need to start playing 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.
And, according to the present invention, it is assumed that 4 play sets are divided according to the play coverage, for example, 1-7 are first play sets, 8-10 are second play sets, 11-13 are third play sets, and 14-16 are fourth play sets. Compared with the existing synchronous playing method, the synchronous playing method has the advantages that only each playing terminal in each playing group is required to synchronously play, the difference between the minimum transmission delay and the maximum transmission delay of the playing terminals in the same playing group is smaller, and therefore 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 a terminal (such as a sound box), thereby forming a new generation of information hardware terminal and better meeting the experience of users.
The embodiment disclosed in the present specification is merely an illustration of one-sided features of the present invention, and the protection scope of the present invention is not limited to this embodiment, and any other functionally equivalent embodiment falls within the protection scope of the present invention. Various other corresponding changes and modifications will occur to those skilled in the art from the foregoing description and the accompanying drawings, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (5)
1. The synchronous playing strategy of the multi-playing terminal is characterized by comprising the following steps:
step 1: acquiring the physical position of each playing terminal;
step 2: according to the volume of the playing task of the audio to be played, determining the playing coverage range of each playing terminal based on the physical position of the playing terminal;
step 3: among all the playing terminals, a plurality of playing terminals are preset as sub-center playing terminals, each sub-center playing terminal is located in a playing coverage range far away from the other side,
dividing the rest of playing terminals into a certain sub-center playing terminal according to the playing coverage range, dividing each sub-center playing terminal into at least one corresponding rest of playing terminal, thereby dividing each sub-center playing terminal and other playing terminals into the same playing group, dividing any playing terminal into only one playing group,
each playing terminal in the same playing group synchronously plays the audio to be played, the playing terminals in different playing groups asynchronously play the audio to be played,
each playing terminal is internally provided with a pickup monitoring module, the current playing terminal is used as a center for playing audio, surrounding playing terminals monitor the playing volume of the current playing terminal, so that the audio attenuation value between the current playing terminal and any surrounding playing terminal is determined, all the playing terminals with the audio attenuation value being more than or equal to the preset attenuation value are regarded as the playing coverage area of the current playing terminal, each playing terminal is sequentially used as the current playing terminal, and the playing coverage area of each playing terminal can be determined.
2. The synchronized playback strategy of a multi-playback terminal according to claim 1, wherein in the step 1, the physical location of the playback terminal is determined by satellite positioning, recorded positioning, or preset mark positioning.
3. The synchronized playback strategy of a multi-playback terminal of claim 1, wherein in step 2, the playback task volume of the audio to be played back is determined based on the audio amplitude.
4. The synchronized playback strategy of claim 1, wherein the playback coverage is determined based on a lowest audio amplitude of the audio to be played back or an average audio amplitude of the entire audio to be played back.
5. The synchronized playback strategy of a multi-playback terminal according to claim 1, wherein if the decibel value k of the audio at the distance r from the current playback terminal is less than or equal to a preset threshold, the area with the current playback terminal as the center and the radius r is the playback coverage area of the current playback terminal, and the decibel value k of the audio at the distance r from the current playback terminal is calculated according to the following formula:
。
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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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| CN115632731B true CN115632731B (en) | 2023-10-13 |
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| CN116961806B (en) * | 2023-09-21 | 2024-02-09 | 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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Address after: No. 56 Nanli East Road, Shiqi Town, Panyu District, Guangzhou City, Guangdong Province, 510000 Applicant after: Guangdong Baolun Electronics Co.,Ltd. Address before: No.19 Chuangyuan Road, Zhongcun street, Panyu District, Guangzhou, Guangdong 510000 Applicant before: GUANGZHOU ITC ELECTRONIC TECHNOLOGY Co.,Ltd. |
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