One—Step Interpolation Predictive Vector Quantization of LSP Parameters
摘要
A new spectal coding approach,one-step interpolation predictive vector quantization of the Line Spectrum Pair(LSP)coding,is proposed.With the use of the sufficient correlation of successive LSP vectors and because of relatively slow variation of the short term spectrum of the speech waveform,the idea of predictive vector quantization and DPCM techniques are used to reduce variance of the parameters to be quantized.18 bit/frame split vector quantization shchene is designed qo quantize the prediction residual.The average spectral distortion of 1.178dB can be achieved when frame period is 30ms.
引用本文（GB/T 7714）
BaoChangchun, DaiYisong. One—Step Interpolation Predictive Vector Quantization of LSP Parameters[J]. 中国邮电高校学报：英文版, 1996.
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