Efficient excitation model and fast selection in CELP coding of speech. - M. Delprat; Michel Lever; C. Gruet (EUROSPEECH, 1989)

Experiments with a regular pulse CELP coder for the pan European half rate channel. - C. Gruet; F. Pommaret; M. Delprat (ICASSP, 1991)

Fractional excitation and other efficient transformed codebooks for CELP coding of speech. - M. Delprat; C. Gruet; F. Dervaux; C. Baroux (ICASSP, 1992)