A speech encoder and method of speech encoding

G - Physics – 10 – L

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G10L 19/00 (2006.01) G10L 19/04 (2006.01) G10L 21/02 (2006.01)

Patent

CA 2598683

An excitation vector generator comprises a pulse vector generating section having N channels (N~1) for generating pulse vectors, a storing section for storing M (M~1)kinds of dispersion patterns every channel in accordance with N channels, a selecting section for selectively taking out a dispersion pattern from the storing section every channel, a dispersion section for performing a superimposing calculation of the extracted dispersion pattern and the generated pulse vectors every channel so as to generate N dispersion vectors, excitation vector generating section for generating an excitation vector from N dispersion vectors generated.

Un générateur de vecteurs d'excitation comprend les parties qui suivent. Une section produisant des vecteurs d'impulsions comportant N canaux (N~1) pour produire les vecteurs d'impulsions; une section de stockage pour stocker M (M~1) sortes de diagrammes de dispersion pour chaque canal, conformément aux N canaux; une section de sélection pour enlever de manière ponctuelle un diagramme de dispersion de la section de stockage pour chaque canal; une section de dispersion pour effectuer un calcul de superposition du diagramme de dispersion extrait et des vecteurs d'impulsions produits pour chaque canal de façon à produire N vecteurs de dispersion; une section de production de vecteurs d'excitation pour produire un vecteur d'excitation à partir des N vecteurs de dispersion produits.

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