多通道同步语音数据采集系统设计分析  

Design and Analysis of A Multi-channel Synchronization Voice Data Collection System

作　　者：徐文娟[1] 张晓云[1] 

机构地区：[1]沈阳炮兵学院,辽宁沈阳110867

出　　处：《无线电工程》2012年第6期19-21,共3页Radio Engineering

摘　　要：针对噪声污染及其控制的解决需要,为提高语音增强系统效能,介绍了一种基于数字信号处理(DSP)并口的高精度多通道同步语音数据采集系统,并对其系统结构、软硬件实现以及三路音频信号的存储器直接访问(DMA)同步采集进行了分析。该系统针对实际需要而开发,结构简单,扩展方便,实时性好,多路的语音数据达到了良好的同步性,具有较高的应用与推广价值。The noise pollution and its control is increasingly important for speech enhancement system. This paper introduces a high sampling-frequency and high precision multi-channel synchronization voice data collection system based on DSP parallel communication. First we presents its system structure and software/hardware realization in detail. Then we analyze DMA synchronization collection of three-way voice signals. This system is developed according to practical need,featuring a simple structure,easy extension, good real-time capability,and good synchronization of multiplexed speech data,which provides a good application prospective.

关 键 词：语音数据采集 DSP DMA 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]