Audio matrix host computer and working method thereof, public broadcasting system and working method thereof

Abstract

The invention discloses an audio matrix host computer, a public broadcasting system, and working methods thereof. The audio matrix host computer comprises a CPU and a digital audio media matrix, a microphone controller, a fire alarm, a fire linkage device, a trigger controller and an external sound source which are respectively connected with the CPU; the CPU receives audio signals from the microphone controller, the fire alarm, the external sound source and the trigger controller, and then obtains the whereabouts of various audio signals, that is audio zones where various audio signals are distributed to; and for each audio zone, the priority of various audio signals distributed to the same audio zone is compared, and then the digital audio media matrix is controlled to output the audio signal with the highest priority distributed to the same audio zone to the corresponding audio zone. The public broadcasting system comprises a plurality of audio matrix host computers, and the CPUs of various audio matrix host computers are in cascade connection. The audio matrix host computer provided by the invention has the advantages of being simple in structure, and does not need complicated connection, so that the installation space and the use cost are saved.

Description

technical field [0001] The invention relates to a broadcasting system, in particular to a public broadcasting system and an audio matrix host. Background technique [0002] With the continuous progress of the times and the rapid development of science and technology, the functional requirements of modern buildings are significantly different from those of the original buildings, especially with the rapid development of building weak current technology, electronic technology, communication technology, network technology, computer technology, automatic The introduction of a series of the most advanced technologies such as control technology and sensor technology has greatly improved the service function of the building, which is more comprehensive and covers a wider range of fields. As an integral part of the weak current system, public broadcasting is closely related to people's modern life. It can not only play music, but also do business promotion and paging broadcasting. I...

AI Technical Summary

Problems solved by technology

[0003] □Currently, the broadcasting products on the market are mainly divided into two categories, one is classified as analog broadcasting system, and the other is digital broadcasting system, that is, network IP broadcasting. Traditional analog broadcasting products constitute a broadcasting system with multiple audio sources and complete functions. , the required structural equipment products are too many, and the installation space requirements of the system are relatively large, which invisibly increases the cost demand for users to use. In the composition and application of the system, multiple devices are required to be connected through the machine, resulting in the audio frequency of the system. Poor transmission anti-interference ability, unable to expand more broadcast audio areas

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