Method of encoding a signal containing speech

Details Method of encoding a signal containing speech Method of encoding a signal containing speech

G - Physics

10

L

G10L 19/12 (2006.01) G10L 19/00 (2006.01)

Patent

CA 2165546

A method of encoding a signal containing speech is employed in a bit rate Codebook Excited Linear Predictor (CELP) communication system. The system includes a transmitter that organizes a signal containing speech into frames of 40 millisecond duration, and classifies each frame as one of three modes: voiced and stationary, unvoiced or transient, and background noise.

On utilise un procédé de codage de signaux de parole dans un système de communication à débit binaire CELP (système de prévision linéaire par codes d'ondes de signaux excitateurs en transmission numérique de la parole). Ce système comprend un émetteur qui organise les signaux de parole en trames d'une durée de 40 millisecondes et classe chaque trame selon trois modes: voisé et stationnaire, non voisé ou transitoire, et bruit de fond.

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