Multipulse-based codebooks for CELP coding at 7 kbps
- 13 January 2003
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 136-139 vol.1
- https://doi.org/10.1109/icassp.1989.266382
Abstract
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.Keywords
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