基音同步特征波形内插语音编码算法

详细信息

Characteristic waveform interpolation speech coding based on pitch synchronization

1. Agilent China Software Design Center Beijing 100044;
2. Researeh Center of Speech Intemctive mprmation, Institute of Acoustics, The Chinese Academy of Sciences Beijing 100080

摘要: 研究了在特征波形语音编码算法中的特征波形分解算法,提出了一种基于基音同步的特征波形内插语音编码算法。特征波形的量化采用变维矢量量化(VDVQ)。通过实现的2.4kb/s的语音质量表明,这种语音压缩算法在低码率时能得到高通信质量的重建语音。

Abstract: The decomposition algorithm of the characteristic waveform interpolation (WI) speech coding is investigated.A novel WI speech coding algorithm based on pitch synchronization is proposed.In the new speech coding algorithm,the quantization of the characteristic waveform is the variable dimension vector quantization (VDVQ).The decoding speech of 2.4 kb/s shows it can deliver decoded speech with high communication quality