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Multichannel audio standby system

A backup system, multi-channel technology, applied in the field of electronic devices, can solve the problems of slow response speed, great impulse noise, and no automatic fault detection, and achieve the effect of short response time and fast switching speed.

Active Publication Date: 2012-01-11
GUANGZHOU LEAFUN CULTURE SCI & TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] To switch the audio signal, the traditional method is realized by manual jumper, the response speed is slow, and the requirements for operators are high. When the jumper is plugged and pulled out, a huge pulse noise will be generated.
In addition, there is also a method of using relays, but this method will also generate huge pulse noise when switching, and does not provide automatic fault detection function
[0003] In the multi-channel sound reinforcement system, the production and playback of program sources are based on the computer control platform. Due to the large amount of data processed by the computer platform, the control software running is many and complex, and the system may be shut down due to failure. However, in live performances , it is necessary to ensure the safe playback of multi-channel program sources

Method used

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Embodiment Construction

[0027] The present invention will be further elaborated below in conjunction with the accompanying drawings.

[0028] For the structure of a multi-channel audio backup system, see figure 1 , the system consists of two parts, one of which is the multi-channel audio backup system control host (hereinafter referred to as the control host), which is based on the host single-chip computer control system, responsible for the input and output of detection signals, and fault judgment, and outputs control commands according to the judgment results , and is also responsible for the power supply of the entire system. The other part is a multi-channel audio backup system switcher (hereinafter referred to as a switcher), which is based on a multi-channel audio matrix to realize switching of multi-channel audio signals. The system supports up to four switchers, and each switcher provides a maximum of eight channels. Main audio signal input, eight backup audio signal input. Each set of aud...

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Abstract

The invention discloses a multi-channel audio frequency backup system realized by audio frequency shift using electronic switch, which comprises a multi-channel audio frequency backup system control mainframe and a multi-channel audio frequency backup system switching device, the multi-channel audio frequency backup system control mainframe is based on a mainframe monolithic computer system, is used for detecting the signal input and output, judging failure, outputting control instruction according to the judging result, and supplying power to the whole system; and the multi-channel audio frequency backup system switching device is used to realize the multi-channel audio frequency signal switching based on multi-channel audio frequency matrix. By adopting electronic switch in audio frequency shift, the invention obtain high shifting speed without impulsive noise, can shift the signals of multi-channel audio frequency player or multi-channel audio frequency processor rapidly, and achieves failure detection function; can response rapidly when a fault is detected out, and can shift to the backup equipment automatically, and realizes automatic redundant backup in high safe sound reinforcement occasion.

Description

technical field [0001] The invention relates to an electronic device for backing up channel audio signals by using electronic equipment, in particular to a multi-channel audio backup system for audio switching by using an electronic switch. Background technique [0002] To switch the audio signal, the traditional method is realized by manual jumper, which has a slow response speed and high requirements for operators. When the jumper is plugged and pulled out, a huge pulse noise will be generated. In addition, there is also a way to use relays, but this way will also generate huge pulse noise when switching, and does not provide automatic fault detection function. [0003] In the multi-channel sound reinforcement system, the production and playback of program sources are based on the computer control platform. Due to the large amount of data processed by the computer platform, the control software running is many and complex, and the system may be shut down due to failure. Ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R29/00
Inventor 李志雄柯建伟李荣芳
Owner GUANGZHOU LEAFUN CULTURE SCI & TECH
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