G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 19/06 (2006.01) G10L 11/04 (2006.01) G10L 11/06 (2006.01) G10L 19/02 (2006.01)
Patent
CA 2294308
A speech coder includes an encoder using an analysis and synthesis approach. The encoder uses a pitch determination algorithm requiring analysis in both the frequency domain and the time domain, a voicing determination algorithm and an algorithm for determining spectral amplitudes and means for quantising the values determined. A decoder is also described.
La présente invention concerne un codeur vocal incluant un codeur utilisant une logique d'analyse et synthèse. Ce codeur utilise un algorithme de détermination des crêtes nécessitant une analyse concernant tant le domaine fréquences que le domaine temps, un algorithme de détermination du voisage, et un algorithme servant à déterminer les amplitudes de spectres. Le codeur utilise en outre des organes permettant de quantifier les valeurs déterminées. L'invention concerne également un décodeur.
Kondoz Ahmet Mehmet
Villette Stephane Pierre
Bereskin & Parr
University Of Surrey
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