语音信号处理嵌入式教学实验平台的研究与开发

Research and Development of the Teaching Platform for Speech Signal Processing with Embedded System

本文介绍了一种语音信号处理嵌入式教学实验平台,该系统可采用多路麦克风进行语音信号实时采集,并通过高性能的Cortex-A8微处理器实现语音处理各种核心算法。该教学平台采用uCLinux嵌入式操作系统和Android系统结合,可对用户开放二次编程接口。作为语音信号处理教学的实验平台,也可以作为语音信号处理应用项目的开发平台。

An embedded system based teaching platform for speech signal processing is introduced in this paper. First, the multiple channel microphones is utilized to acquire the speech signal. Then, the high-perform- ance Cortex-A8 microprocessor is employed to realize the various principal algorithms in speech signal process- ing. The embedded operating systems adopted in the teaching platform are the uCLinux and the Android sys- tems. This platform provides the interface for secondary development. And, it can be used not only as the teaching platform but also as the project development platform.