嵌入式VDR系统语音处理卡的研制  

Research & Development of Speech Sound Processing Card in Embedded VDR System

作　　者：费晓晔[1] 唐晓松[1] 

机构地区：[1]上海船舶运输科学研究所船舶控制事业部,上海200135

出　　处：《上海船舶运输科学研究所学报》2007年第1期11-17,56,共8页Journal of Shanghai Ship and Shipping Research Institute

摘　　要：语音处理卡是船舶航行数据记录仪(Voyage Data Recorder,简称VDR)中针对语音信号的一个子系统。研制时,在硬件方面,对基于AC48304C-C核心芯片的系统结构及其电路原理图进行了设计;软件方面,采用了面向对象的模块化设计,在VxWorks操作系统Tornado开发环境下运用C++语言编制了语音卡的功能程序。它实现了多路模拟语音的采集和压缩。The research and development of speech sound processing card is specially carried for a sub system of speech sound signals in VDR system. In regard to its hardware the system configuration and circuit principle diagram based on AC48304C-C chip are given in the paper and in software the OO modularization technique is adopted. The speech sound card function program is compiled with C ＋ ＋ language in Tomado development environment of VxWorks operating system. This card provides a solution for multi-channel speech sound processing.

关 键 词：船舶工程 船舶航行数据记录仪 语音信号处理 数字信号处理 嵌入式系统 

分 类 号：U665.26[交通运输工程—船舶及航道工程]