首页>
外国专利>
Perceptual speech coding using prediction residuals, having harmonic magnitude codebook for voiced and waveform codebook for unvoiced frames
Perceptual speech coding using prediction residuals, having harmonic magnitude codebook for voiced and waveform codebook for unvoiced frames
展开▼
机译:使用预测残差的感知语音编码,具有用于语音的谐波幅度码本和用于非语音帧的波形码本
展开▼
页面导航
摘要
著录项
相似文献
摘要
A speech encoding method and apparatus for encoding an input speech signal on a block-by-block or frame-by-frame basis wherein short- term prediction residuals are found and then sinusoidal analytic encoding parameters are produced based on those short-term prediction residuals. Perceptually weighted vector quantization is performed for voiced blocks or frames by encoding their sinusoidal frequency or analytic harmonic magnitudes and, in the case of unvoiced blocks or frames, the time waveforms of the unvoiced blocks are encoded.
展开▼