ISD4004在具有接近功能的立体声语音系统中的应用  

Application of ISD4004 on the Approaching-Alarming System of Stereo Voice

作　　者：姜杏辉[1] 邹丽新[1] 孙平[1] 马励行[1] 季晶晶[1] 

机构地区：[1]苏州大学物理科学与技术学院,江苏苏州215006

出　　处：《现代电子技术》2007年第21期187-189,192,共4页Modern Electronics Technique

摘　　要：双声道是一项应用最为普遍的立体声技术之一。实际应用中当需要实现双声道语音系统时,往往采用复杂的硬件电路才能构成,使得其制作成本大为提高。因此用一个较为简单的电路来实现双声道立体声语音系统就显得很有实用价值。在简要介绍ISD4004工作原理的基础上,重点介绍ISD4004的立体声录放技术以及该技术在由单片机所构成的具有接近功能的立体声语音系统中的应用,并给出了实际系统的硬件构成和软件设计流程。Twin track is one of the most popular stereo technologies. In practice,when it is needed,the twin track stereo is often constructed by complex hardware and circuit and the cost increases rapidly. So it is practically worthful to build the system with simple circuit. A brief introduction of chip ISD4004, with emphasis on its stereo function,is provided. Based on this technology,Approaching--Alarming system of stereo voice controlled by MCU is constructed under the applicable hardware and software of its unique feature. This is valuable to guiding the design of practical system of stereo voice.

关 键 词：ISD4004 立体声 单片机 语音系统 

分 类 号：TN912.12[电子电信—通信与信息系统]