Multichannel audio switcher

Abstract

The invention discloses a multichannel audio switcher comprising a front display panel; a CLED display unit, a key LED unit, a monitoring unit and an MCU control unit are arranged in the front displaypanel, the key LED unit is used for selecting and displaying a current channel, a monitoring circuit is arranged in the monitoring unit, and the monitoring circuit adopts an ES 9023 chip and is usedfor converting an input I2S audio signal into an analog audio signal. The multichannel audio switcher in the invention has high time precision and supports switching of analog or digital audio channel, meanwhile, an analog audio system and an digital audio system are adapted to completing the conversion of analog audio to digital audio or the digital audio to the analog audio while switching the audio channel, a configurable multi-period control system adapts to multi-task switching work, during start-up, the time period is automatically positioned without the need of being manually set, the monitoring function of the current channel earphone and LED display of the current audio amplitude are provided, so that visual display of the current switching state is achieved, and a better application prospect is brought.

Description

Technical field [0001] The invention relates to the field of multi-channel audio switchers, in particular to a multi-channel audio switcher. Background technique [0002] With the continuous development of science and technology, China’s radio and television industry has achieved further development. Automated broadcasting has gradually become an inevitable trend in the development of broadcasting. In the past, when advertising and news programs were interrupted regularly, engineers were often required to manually select audio channels. Such operations often exist. The time is not accurate enough, the manual operation steps are cumbersome, and the equipment used in the past to automatically switch audio channels also has insufficient time to meet the time accuracy requirements of synchronous broadcast switching, the equipment is too large, and does not support analog and digital audio mixing switching To this end, we propose a multi-channel audio switcher. Summary of the inventi...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of science and technology, my country's radio and television industry has achieved further development, and automated broadcasting has gradually become an inevitable trend in the development of broadcasting. In the past, engineers were often required to manually select audio channels when inserting advertisements and news programs. The time is not accurate enough, manual operation steps are cumbersome, etc. The equipment used to automatically switch audio channels in the past also has insufficient time accuracy and cannot meet the time accuracy requirements of synchronous broadcast switching. The equipment is too large and does not support mixed switching of analog and digital audio. and other issues, for this reason, we propose a multi-channel audio switcher

Images