Title :
A Mixed-Split Scheme for 2-D DPCM Based LSF Quantization
Author :
Chatterjee, Saikat ; Sreenivas, T.V.
Author_Institution :
Dept. of Electr. Commun. Eng., Indian Inst. of Sci., Bangalore
Abstract :
In this paper a mixed-split scheme is proposed in the context of 2D DPCM based LSF quantization scheme employing split vector product VQ mechanism. Experimental evaluation shows that the new scheme is successfully being able to show better distortion performance than existing safety-net scheme for noisy channel even at considerably lower search complexity, by efficiently exploiting LSF trajectory behavior across the consecutive speech frames.
Keywords :
linear predictive coding; speech coding; vector quantisation; 2D DPCM; consecutive speech frames; high quality speech coding scheme; line spectrum frequency; linear predictive coding; mixed-split scheme; noisy channel; safety-net scheme; split vector product; vector quantization schemes; Bit rate; Context; Digital communication; Frequency; Linear predictive coding; Narrowband; Signal analysis; Speech analysis; Speech coding; Vector quantization;
Conference_Titel :
TENCON 2005 2005 IEEE Region 10
Conference_Location :
Melbourne, Qld.
Print_ISBN :
0-7803-9311-2
Electronic_ISBN :
0-7803-9312-0
DOI :
10.1109/TENCON.2005.301301
