Method and apparatus for efficient implementation of...

Details Method and apparatus for efficient implementation of... Method and apparatus for efficient implementation of...

G - Physics

10

L

G10L 19/02 (2006.01) H03M 7/30 (2006.01) H04B 1/66 (2006.01)

Patent

CA 2213348

Accurate measures of estimated spectral power and phase are derived from two spectral representations of each of one or more input signals generated by critically-sampled filter banks. The derived measures may be used in various applications including adaptive bit allocation in perceptual coding systems. An efficient implementation of one particular single-sideband critically-sampled filter bank is disclosed.

On déduit des mesures précises de la phase et de la puissance spectrales estimées à partir de deux représentations spectrales d'un signal ou de chaque signal d'une pluralité de signaux d'entrée générés par des bancs de filtrage à échantillonnage critique. Les mesures ainsi déduites peuvent être utilisées dans le cadre de diverses applications, y compris l'affectation adaptative de bits dans des systèmes de codage perceptif. Une mise en oeuvre efficace d'un banc de filtrage particulier à échantillonnage critique et à bande latérale unique est également décrite.

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