基于4 Kb/s DP-CELP声码器的高容量语音邮件系统设计  

Design of High Capacity Voice Email System Based on 4 Kb/s DP-CELP Codec

作　　者：罗亚飞[1] 鲍长春[1] 

机构地区：[1]北京工业大学电子信息与控制工程学院,北京100022

出　　处：《电声技术》2005年第12期60-63,共4页Audio Engineering

基　　金：北京市教委科技发展项目(KM200310005024)北京工业大学第三届研究生科技基金(ykj-2004-17)

摘　　要：针对市场上国内外语音邮件产品压缩率不高、录音方式不够灵活等问题,提出一种基于4Kb/s DP-CELP 语音编码方案以及录播实时、存储高效、录音灵活的语音邮件系统设计方案。系统在Borland的C++Builder 6．0集 成开发环境下使用Windows底层音频API函数开发,采用双缓冲技术保证实时录播。仿真结果表明,回放话音质量 优良,系统稳定可靠,具有潜在的实用价值。In order to solve the problems of not high compression ratio and convenient record ways of voice email products at home and abroad,a voice email system based on 4 Kb/s DP-CELP CODEC with real-time record and playback,highly efficient storage and convenient record is designed in this paper, This system is developed on the Borland C＋＋ Builder 6.0 IDE using Windows Waveform Audio API functions,and the real-time record and playback is implemented using double-buffering technique. The simulation result indicates that this system can be performed stably and reliably with high-quality synthesized speech,and it has the potential and applied value in the future.

关 键 词：语音邮件 语音编码 双缓冲 实时 波形音频应用程序接口 

分 类 号：TP393.098[自动化与计算机技术—计算机应用技术] TN912.32[自动化与计算机技术—计算机科学与技术]