Title :
Efficient scalar quantisation of line spectrum pairs using the ordering property
Author :
Lee, I. ; Woo, H.C. ; Kang, S.
Author_Institution :
Mobile Commun. Div., Electron. Telecommun. Res. Inst., Daejon, South Korea
fDate :
4/13/1995 12:00:00 AM
Abstract :
An efficient quantisation method of line spectrum pairs (LSP) which has good performance and very low complexity and memory is proposed. The ordering property of the LSP parameters is utilised in the DPCM scheme. The new scalar quantisation algorithm requires 32 bit/frame to achieve 1 dB2 average spectral distortion. The quantisation performance has also been shown to be robust across databases and different speakers
Keywords :
differential pulse code modulation; linear predictive coding; quantisation (signal); speech coding; DPCM scheme; LPC parameters; QCELP; line spectrum pairs; ordering property; quantisation algorithm; scalar quantisation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950424
