基于DSP的通用实时音频处理系统

Universal Audio Processing System Based on DSP

介绍了一种基于 DSP的通用实时音频处理系统 ,它具有可选择的信号采样速率和高性能的数字信号处理能力 ,能够以 PC机插卡或独立的用户系统板方式工作。不仅可以用来对立体声音频信号进行实时编解码处理 ,还可以用来作为高速的实时信号采集与处理板使用。实例表明 ,该系统完全满足各种双声道的实时音频编解码的需要 ,具有广泛的应用价值。

Audio processing is the focus of the multim edia development. This paper introduces a universal audio processing system bas ed on DSP. The system has selectable sampling frequency and high performance sig nal processing capability, and provides different operation modes to be chosen accor ding to user′s request. It can be used as a PC plug card or a stand-alone c ard, and can not only be used to process real time stereo audio signal, but also used as a r eal time data acquisition and processing board. It proves that the syst em can satisfy the demands of real time stereo audio processing and it is widel y used.