电脑声音系统模拟信号录音噪声分析

Analysis on Analog Signal Recording Noise of Computer Voice System

利用Adobe Audition 3.0软件强大的分析处理功能,以ALC655为例,测试了模拟信号录制的A加权噪声电平,分析了造成录音本底噪声过大的电路设计原因,提出改善电脑录音的几种方法。

By using stronger analyzing and processing functions of software Adobe Audition 3.0,and taking ALC655 as an example,this paper tests weighted noise level A recorded by analog signal,analyzes the reasons of overloud recording background noise in circuit design,and puts forward some methods for improving the computer recording.