数字传声器测试  

Measurement of Digital Microphone

作　　者：黄光辉 陈浩 孔彩芬 钱利军 

机构地区：[1]杭州爱华仪器有限公司,浙江杭州310007

出　　处：《电声技术》2010年第7期73-75,86,共4页Audio Engineering

摘　　要：介绍了数字传声器的基本原理和结构及数字信号的编码方式。针对数字传声器测试中遇到的困难提出了一种解决方案,通过信号处理模块进行D/A转换后得到模拟信号给电声测试系统进行测试并显示各相关参数,使数字传声器试验生产和常规生产的测试更加方便。The basic principles, structure of digital microphone, and the way of digital signal coding are introduced. A solution is provided to resolve the problem that occurs in digital microphone measurement. The analog signal which is DA transformed by signal process module is used by the electro-acoustic test system to do the measurement. The displays of relevant parameters make the measurement for pilot and conventional production more convenient.

关 键 词：数字传声器 ∑-△变换 D/A转换 电声测试 

分 类 号：TN641[电子电信—电路与系统]