Title :
Research and implementation of an improved 800BPS speech coding algorithm
Author :
Zhao, Jiyong ; Wang, Jingyuan ; Zou, Xia ; Xu, Zhiyong
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
An improved 800bps speech coding algorithm is presented in this paper. Several methods are exploited to reduce the bit rate, such as dynamic bit allocation, multi-frame joint vector quantization and parameter interpolation. The 800 bps speech coding algorithm has been implemented on TMS320VC5416. The PESQ scores obtained with GL VQT are over 2.9, which show that the speech coding system can meet actual communication requirements.
Keywords :
speech coding; bit rate 800 bit/s; bit rate reduction; dynamic bit allocation; multiframe joint vector quantization; parameter interpolation; speech coding algorithm; Algorithm design and analysis; Bit rate; Digital signal processing; Heuristic algorithms; Quantization; Speech; Speech coding; Mixed excitation linear prediction; Real-time implementation; Super low bit rate speech coding; Voice quality tester;
Conference_Titel :
Information Theory and Information Security (ICITIS), 2010 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6942-0
DOI :
10.1109/ICITIS.2010.5689695
