| 摘要 |
A method for processing speech signals using vector quantization is disclosed. The method comprises of encoding a first frame and a second frame of a speech signal to produce corresponding first and second vectors, generating a first quantized vector, calculating a quantization error of the first quantized vector, calculating a fourth vector, and quantizing the fourth vector. The first vector represents a spectral envelope of the speech signal during the first frame and the second vector represents a spectral envelope of the speech signal during the second frame. The generation of the first quantized vector includes quantizing a third vector that is based on the first vector. The calculation of the fourth vector includes adding a scaled version of the quantization error to the second vector.
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