IBM PC通用音频数据采集系统

General Purpose Audio Data Acquisition System for IBM PC

本文介绍一种适用于IBM PC及其兼容机的通用音频数据采集系统。该系统具有8个A/D通道和一个D/A通道,分辨率为12bit,带有一个可编程的7阶椭圆抗混叠滤波器。系统具有功能强,通用性好,电路简单,不占用PC机中断和DMA资源等优点。能广泛用于音频及其他测量与控制领域。

General purpose of acquisition system of Audio Data for IBM PC and its compatible computer is introduced in this paper. The system consists of eight A/D channels and one D/A channel with resolution of 12 bits having a programmable 7—order elliptic anti—alias filter. Moreover, this system has the advantages of multiple functions, good generality, simple circuit,unoccupied interrupt of PC and DMA resources,so it can be widely used in audio measurement and other measurements or control field.