基于PC的多路语音采集系统的设计与实现  

Design and Implementation of Multi-channel Speech Acquisition System Based on PC

作　　者：丁诚诚[1] 吴小培[1] 

机构地区：[1]安徽大学计算智能与信号处理教育部重点实验室,安徽合肥230039

出　　处：《工业控制计算机》2008年第11期26-28,共3页Industrial Control Computer

摘　　要：当前语音信号的采集主要集中在单路语音信号的输入和处理上,且单路语音采集会带来诸如噪声大、抗干扰能力差等问题。为了解决采集方式单一和采集信号质量不能满足使用需求等问题,提出了一种基于PC的多路语音实时采集系统,介绍了系统的基本组成,详细分析了硬件电路的基本工作原理,并给出了软件部分的关键代码。同时,为了提高信号质量,系统采用了模拟滤波与在线数字滤波两种方法对语音数据进行处理,故系统具有采集速度快、多路同时采集与存储、数据准确、实时显示等优点,为多路语音信号的采集和处理提供了一个低廉而有效的解决方案。The present voice signal acquiring system is mainly focusing on single-channel input and processing,which may bring some problems such as loud noise;weak anti-jamming and so on.In order to replace the unitary acquiring and solve the problem that the quality of signal acquiring cannot meet the use need,this paper proposes a multi-channel voice signal acquiring system based on PC.In the paper,the components and functions of system hardware are analyzed, and the flow chart and some key program codes are given.In addition,aiming at improving the signal quality,this system adopts the stimulant filter and the on-line digital tilter,which give many advantages to the system,fast and precise data acquiring,multichannel acquiring and memory,real-time display,etc.This system provides an inexpensive and effective solution to the multichannel acquiring and processing of the voice signal.

关 键 词：语音 多路采集 滤波器 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]