基于ARM的嵌入式语音存储系统设计  

Design of Embedded Voice Storage System Based on ARM

作　　者：于春雪[1] 

机构地区：[1]哈尔滨理工大学无线通信系统实验室,哈尔滨150080

出　　处：《单片机与嵌入式系统应用》2012年第5期56-59,共4页Microcontrollers & Embedded Systems

摘　　要：为了有效地节省语音数据的传输带宽和存储系统的磁盘空间,需要在保证语音质量的前提下尽可能降低其编码比特率。本设计采用经过优化的G.729语音压缩编译码算法,以ARM处理器为载体,开发的嵌入式语音存储系统可实现语音信号的海量存储,而且处理速度快、可靠性好、扩展方便。通过严格的测试和评估,该系统能够实现对大量语音数据的压缩和记录,各项指标基本达到了预期的水平。In order to effectively save the transmission bandwidth of voice data and disk space of storage system, it needs to lower the encoding bit rate when ensuring the voice quality. The design uses optimized G. 729 voice compression encoding and decoding algorithm and ARM processor. The embedded voice storage systems can achieve mass storage of voice signals. It has fast processing speed, good reliability and convenient expansion. Through rigorous test and evaluation, the system achieves the compression and recording of large num- bers of voice data,and indicators reachs the expected level.

关 键 词：ARM 语音压缩 G.729 语音存储 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构] TP333[自动化与计算机技术—计算机科学与技术]