Title :
An improved 600bps speech coding based on joint quantization of pitch and gain shape
Author :
Zou, Xia ; Wen, Chuanhua ; Zhang, Xiongwei ; Yafei Zhang
Author_Institution :
Inst. of Command Autom., PLA Univ. of Sci.&Tech., Nanjing, China
Abstract :
In this paper, joint quantization of pitch and gain shape parameters is proposed to exploit the coherence between them and the synthesis speech quality at 600bps is improved. Considering the different importance of parameters, a weighted distortion measure is defined. The weight is gradually determined based on the influence on speech quality. Experimental results show that the PESQ of 600bps speech coder can achieve 2.84.
Keywords :
speech coding; speech synthesis; bit rate 600 bit/s; gain shape; joint quantization; pitch shape; speech coding; synthesis speech quality; weighted distortion measure; Joints; Speech; Speech coding; distortion measure; joint matrix quantization; speech coding; weight;
Conference_Titel :
Communication Technology (ICCT), 2010 12th IEEE International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-6868-3
DOI :
10.1109/ICCT.2010.5689065
