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Noise feedback coding method and system for efficiently searching vector quantization codevectors used for coding a speech signal
Noise feedback coding method and system for efficiently searching vector quantization codevectors used for coding a speech signal
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机译:用于有效搜索用于编码语音信号的矢量量化码矢量的噪声反馈编码方法和系统
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摘要
A system for performing a computationally efficient method of searching through N Vector Quantization (VQ) codevectors for a preferred one of the N VQ codevectors predicts a speech signal to derive a residual signal, derives a ZERO-INPUT response error vector common to each of the N VQ codevectors, derives N ZERO-STATE response error vectors each based on a corresponding one of the N VQ codevectors, and selects the preferred one of the N VQ codevectors based on the N ZERO-STATE response error vectors and the ZERO-INPUT response error vector.
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