基于DSP的话音系统设计及语音处理算法实现

介绍了一种基于802．3以太网协议传输话音和数据的局域通信系统的设计。该通信系统采用两块TI公司的54、系列芯片构成主从连接方式，作为通信系统信号处理与控制平台，通过系统功能要求可实现重配置以及相应应用软竺的可选择下载执行。为保证话音与数据通信的可靠性与实时性，由5416负责话音的采集与处理，实现了包括语音检测、语音编解码、回声消除、自适应降噪等语音处理算法。系统工作情况表明，达到了设计要求。

Design of Speech Communication System Based on DSP and the Realization of Speech Process Algorithms

A design of local communication system which is used to transfer speech and data based on 802.3 Ethernet protocol is introduced in this paper. The mast-slave connection mode of two TI 54x series DSP chips are configured for signal process and control plat. The system's module can be reconfigured and its related application software can be optional downloaded.In order to assure the reliability and the real time performance of the speech and data communication, we arrange 5416 to collect and process the speech data, and realize a series of speech algorithms including speech detector, speech coder and decoder, echo canceller, adaptive noise canceller on 5416. The running of the system shows the design requirements is achieved.