多缓冲区技术在DSP语音存储系统中的应用  

APPLICATION OF MULTI-BUFFER TECHNOLOGY IN DSP SPEECH STORAGE SYSTEM

作　　者：李晔[1] 樊燕红[1] 姜竞赛[1] 马晓凤[1] 郝秋赟[1] 

机构地区：[1]山东省计算中心山东省计算机网络重点实验室,山东济南250101

出　　处：《计算机应用与软件》2014年第3期131-133,141,共4页Computer Applications and Software

基　　金：国家自然科学基金项目(61272433)

摘　　要：DSP实时语音存储系统,将数据存储到USB移动存储设备的过程中,存在存储速率快慢不均的现象。采用常用的双缓冲区模式的存储方法,会存在样点丢失的问题。针对上述问题设计一种多缓冲区模式的存储方法。该方法应用于USB实时语音采集、存储系统中,解决了样点丢失的问题,保证了存储数据的准确性和完整性。多缓冲区模式的存储方法对其它高速实时数据采集、存储系统具有借鉴作用。DSP real-time speech storage system stores the data to removable USB storage devices. In storing process there exits the uneven storage rate. If the cQmmon double-buffer mode storage method is used, then the problem of sample points＇ loss will exist. We design a storage method with multi-buffer mode for the above problems. Applying the method to USB real-time speech data acquisition and storage system, it solves the problem of sample points＇ loss and ensures the accuracy and integrity of the stored data. Multi-buffer mode storage method has the role of reference for other high-speed real-time data acquisition and storage systems.

关 键 词：DSP USB 语音存储 多缓冲区模式 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]