European Conference on Speech Technology Edinburgh, Scotland, UK September 1987

Position Reoptimisation for a Multipulse Excited LPC Coder

I. Boyd

British Telecom Research Laboratories, Martiesham Heath, Ipswich

Since multipulse excited linear predictive coding was introduced several improvements to the basic multipulse coding algorithm have been suggested. The most notable of these are the inclusion of a pitch filter and amplitude reoptimisation. This paper presents an alternative to amplitude reoptimisation where not only the pulse amplitudes, but also the pulse positions are reoptimised. A comparison between position reoptimisation and amplitude reoptimisation in terms of complexity and performance is included.

Full Paper

Bibliographic reference.  Boyd, I. (1987): "Position reoptimisation for a multipulse excited LPC coder", In ECST-1987, 2037-2040.