Predictive split-matrix quantization of spectral parameters...

Details Predictive split-matrix quantization of spectral parameters... Predictive split-matrix quantization of spectral parameters...

G - Physics

10

L

G10L 19/06 (2006.01) G10L 19/00 (2006.01)

Patent

CA 2216315

The present invention concerns efficient quantization of more than one LPC spectral models per frame in order to enhance the accuracy of the time-varying spectrum representation without compromising on the coding-rate. Such efficient representation of LPC spectral models is advantageous to a number of techniques used for digital encoding of speech and/or audio signals.

La présente invention concerne une quantification efficace de plusieurs modèles spectraux du type modèle prédictif linéaire de la parole (PLP) par trame, afin d'augmenter la précision de la représentation spectrale variable dans le temps sans porter atteinte à la vitesse de codage. Une telle représentation efficace des modèles spectraux du type PLP est avantageuse pour un certain nombre de techniques utilisées pour le codage numérique de la parole et/ou de signaux audio.

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