Title :
Joint matrix quantization of speech coding parameters
Author :
Zou, Xia ; Wen, Chuanhua ; Zhang, Xiongwei ; Zhang, Yafei
Author_Institution :
Inst. of Command Autom., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
In this paper, joint matrix quantization of speech coding parameters is proposed to exploit the coherence between them. Gain and pitch parameters are jointly quantized. A distortion measure is defined to take into account the different importance of parameters. The method to adjust the weight in the distortion measure is presented. Experimental results show significant gains in quantization performance and synthesis speech quality compared with separate quantization.
Keywords :
matrix algebra; speech coding; distortion measure; gain parameters; joint matrix quantization; pitch parameters; quantization performance; speech coding parameters; synthesis speech quality; Bit rate; Joints; Mutual information; Quantization; Shape; Speech; Speech coding; distortion measure; joint matrix quantization; speech coding; weight;
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2010 International Conference on
Conference_Location :
Suzhou
Print_ISBN :
978-1-4244-7556-8
Electronic_ISBN :
978-1-4244-7554-4
DOI :
10.1109/WCSP.2010.5633810
