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Audio synchronization output method and system

A technology of audio synchronization and output method, which is applied in the direction of transmission system, digital transmission system, synchronization device, etc., which can solve the problems of audio file data audio playback asynchronous, signal attenuation, multi-playback terminal system installation and wiring difficulty, and reduce playback Time error, reducing decoding time, and improving user experience

Active Publication Date: 2013-10-02
SHENZHEN AIRSMART TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for synchronous audio output, which aims to solve the problem of signal attenuation in the existing multi-channel synchronous output technology using audio cables, and the problem of high difficulty in installation and wiring of multi-player terminal systems when in use , and the problem of asynchronous audio playback caused by audio file data being decoded by different playback terminals

Method used

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  • Audio synchronization output method and system
  • Audio synchronization output method and system
  • Audio synchronization output method and system

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Embodiment Construction

[0047] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments.

[0048] figure 1 It is a schematic structural diagram of the first embodiment of the audio synchronization output system 100 of the present invention, as figure 1 As shown, the system 100 of the present invention includes a control terminal 110 connected to a local area network, a media server 120 and multiple playback terminals 130 . The local area network can be a wired local area network or a wireless local area network.

[0049] Wherein, the control terminal 110 is used to select a playback terminal 130 from all playback terminals 130 in the local area network as a reference terminal, use the clock of the reference terminal as a reference time, and send a synchronization command to the reference terminal. The synchronization instruction indicates the storage path of the audio information in the media server 120, and multiple playback terminals 130 th...

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Abstract

The invention discloses an audio synchronization output method and a system. The system comprises a control terminal, a media server and a plurality of play terminals which are accessed to a local area network. The method comprises the steps that S1, the control terminal selects one play terminal from the local area network to serve as a reference terminal, and sends a synchronization instruction to the reference terminal; S2, the reference terminal downloads specified audio information from the media server, decodes the audio information for generating digital audio information, and sends a clock synchronization coordination instruction to the specified play terminals, and the clock synchronization coordination instruction enables the play terminals to send clock synchronization coordination instruction return values to the reference terminal, and synchronizes a clock to the reference time; and S3, the reference terminal sends the digital audio information to the play terminals feeding back the clock synchronization coordination instruction return values within the required time for synchronously playing the digital audio information on the play terminals. Play time errors among the play terminals are reduced, and the quality of an audio is guaranteed.

Description

technical field [0001] The present invention relates to audio synchronization technology, and more specifically, to an audio synchronization output method and system. Background technique [0002] In the prior art, synchronous audio output needs to connect multiple different playback terminals with audio cables, and the audio analog signals are synchronously transmitted to different playback terminals (for example, speakers) through the audio cables, and the playback terminals that receive the audio analog signals are synchronously Output audio. In this audio synchronous output method, since the analog signal is greatly affected by the transmission distance, the signal attenuation caused by the analog signal during the transmission process will lead to a decline in audio quality. Installing the wiring creates certain difficulties and increases the cost of the system. [0003] In order to solve the problem of complex installation and wiring and high system cost, in the prio...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L7/00
CPCH04N21/4305H04J3/0661H04L65/1069H04L65/80H04N21/43615H04N21/439H04N21/44231
Inventor 曾德钧
Owner SHENZHEN AIRSMART TECH CO LTD
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