Stanzione & Kim LLP
Coefficient splitting structure for vector quantization bit allocation and dequantization
A method and apparatus to convert a linear predictive coding (LPC) coefficient into a coefficient having order characteristics, such as a line spectrum frequency (LSF), and to vector quantize the coefficient having the order characteristics when a speech signal is encoded. The method and apparatus split the vector of the coefficient having the order characteristics into a plurality of subvectors, select a codebook in which an available bit is variably allocated to each subvector according to distribution of elements of each subvector, and quantize each subvector according to the selected codebook. The method and apparatus use normalized codebooks.
SAMSUNG Electronics Co., Ltd.
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G10L G10L
additional inventional
Ki-Hyun Kang-Eun Jung-Hoe Chang-Yong Ho-Sang Eun-Mi
Choo Lee Kim Son Sung Oh