自适应谱增强在MBE语音编码中的应用研究  

Application of Self-adaptive Spectral Enhancement to Speech Coding Based on MBE

作　　者：黄姗姗[1] 许钢[1] 李远军[1] 

机构地区：[1]安徽工程大学安徽省电气传动与控制重点实验室,安徽芜湖241000

出　　处：《重庆工商大学学报（自然科学版）》2013年第3期62-66,共5页Journal of Chongqing Technology and Business University:Natural Science Edition

基　　金：安徽高校自然科学基金重点研究项目(KJ2011A035)

摘　　要：通过对多带激励(multi-band excitation,MBE)语音编码的研究,将自适应谱增强技术应用在多带激励语音编码中,提升了合成语音的清晰度,改善了合成语音的质量;仿真实验表明:自适应谱增强技术使合成语音的基频和二次谐波的谱幅度明显提升,有效地增强了合成语音的清晰度。By studying the speech coding of multi-band excitation（MBE）,self-adaptive spectral enhancement is applied to MBE speech coding,the definition of synthetic speech is upgraded and the quality of synthetic speech is improved.The result of simulation experiment shows that the amplitudes of fundamental frequency and second harmonic of synthetic speech are both increased obviously by using self-adaptive spectral enhancement.So,the definition of synthetic speech is enhanced effectively.

关 键 词：MBE 自适应谱增强 语音编码 语音解码 

分 类 号：TN912.3[电子电信—通信与信息系统]