Title :
Spectral distortion in G.729 due to LPC quantization
Author :
Krishna, G. Radha ; Banerjee, M. ; Vani, B.A.
Author_Institution :
Dept. of Electr. Comm. Engg., Indian Inst. of Technol., Chennai, India
Abstract :
In the G.729 speech coder, linear predictive coding (LPC) parameters are converted into line spectral frequencies (LSF) and then quantized. Spectral distortion, due to quantization error at various stages is calculated by using the log spectral distortion (LSD) measure.
Keywords :
linear predictive coding; speech coding; vector quantisation; vocoders; G.729 speech coder; LPC quantization; line spectral frequencies; linear predictive coding; log spectral distortion measure; quantization error; spectral distortion; vector quantization; Bandwidth; Books; Digital signal processing; Distortion measurement; Linear predictive coding; Speech coding; Speech processing; Table lookup; Vector quantization;
Conference_Titel :
Information Theory Workshop, 2002. Proceedings of the 2002 IEEE
Print_ISBN :
0-7803-7629-3
DOI :
10.1109/ITW.2002.1115465
