语音调度电路的FPGA解决方案

The FPGA-based Solution for Voice Dispatching Circuitry

提出了一种用FPGA技术实现任意形式的语音调度电路的方法。该方法运用语音组合矩阵的概念,通过FPGA器件实施多路语音的并行处理技术,为语音通信中的会议、广播、多组广播、监听等所有种类的语音调度电路提供了一个全面的解决方案。文中对采用这一解决方案的语音调度电路的同步方式、信号动态范围、背景噪声抑制等做了分析,并介绍了一个32路的语音调度电路设计实例。

A method that applies FPGA technology to realize arbitrary form of voice dispatching circuitry is presented. The concept of voice combination matrix is adopted in this method and with the FPGA-based multi-channel voice signal parallel processing technology an overall solution is provided for all types of voice dispatching circuitry such as meeting, broadcasting, multicasting, voice monitoring etc. in voice communications. The synchronization mode, signal dynamic range and backgroud noise suppression of the circuitry that adopts the solution are analyzed. An example of 32-channel voice dispatching circuitry design is given.