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Multipulse-based codebooks for CELP coding at 7 kbps

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2 Author(s)
Woo, H.C. ; Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA ; Gibson, J.D.

A report is presented on the design of CELP codebooks matched in some ways to multipulse sequences that produce toll-quality speech. The authors designed a multipulse LPC system that achieves toll quality at 15 kb/s. They then studied the properties, especially the statistical properties, of these successful multipulse excitations for a variety of speakers and speech segments. CELP codebooks were developed which match the properties of the multipulse sequences to yield a final CELP coder for operation at 7 kb/s

Published in:

Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on

Date of Conference:

23-26 May 1989