基于ADM的红外语音传输系统设计  

Design of Infrared Voice Communication System Based on ADM

作　　者：孟敬[1] 

机构地区：[1]广东交通职业技术学院电子信息工程系,广东广州510800

出　　处：《电声技术》2005年第7期31-34,40,共5页Audio Engineering

摘　　要：主要设计了一种新型的红外无线通信语音教学系统,完成了MC3418编解码芯片的原理和功能研究及其外围电路的设计。系统利用单片机定时控制,实现语音信号的红外无线传输,满足现代交互式教学需求。具有电路合理,经济实用等优点,且在功能上易于扩展和实现多媒体教学。The new application of infrared communication in voice teaching system is introduced in this paper. In addition,the principle and function of MC3418 IC is studied and the peripheral circuit is designed. Single chip machine is used for timing control in the system, infrared wireless transmission of voice signals is realized, and the demand in modem interactive teaching is satisfied. This system is economical, its circuit is simple,and it is easy to be extended to multimedia teaching. The infrared voice transmission system mainly consists of the encoder/decoder, SCM controller,infrared signal emitter/receiver,low-pass filter,and amplifier.

关 键 词：自适应增量调制 MC3418 语音编码 红外 

分 类 号：TN912[电子电信—通信与信息系统]