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A NEW DESIGN ALGORITHM FOR WAVEFORM VECTOR QUANTIZER OF SPEECH SIGNAL |
Jiang Gangyi; Zhang Lihe; Cai Jinhai;Zheng Yi |
Hangzhou University, Hangzhou 310028;Shantou University,Shantou 515063;Artificial Intelligence and patter recognition Open Lab, Shantou University |
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Abstract Characteristic varibles of waveform vector quantizer of speech signal are presented and used to analyze codebook and its training sequence. It includes three parts, i. e., constructing initial codebook efficiently, training codebook fast and quantizing input vectors fast. Computer simulations show that the training speed of codebook is quickened by the new design algorithm and the complexity of vector quantizer is reduced.
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Received: 16 December 1993
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