Method and apparatus for characterizing inhalation noise and...

G - Physics – 10 – L

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G10L 15/00 (2006.01) G10L 15/06 (2006.01) G10L 21/00 (2006.01)

Patent

CA 2572152

A method for characterizing inhalation noise within a pressurized air delivery system, the method including the steps of: generating an inhalation noise model (912, 1012) based on inhalation noise; receiving an input signal (802) that includes inhalation noise comprising at least one inhalation noise burst; comparing (810) the input signal to the noise model to obtain a similarity measure; comparing the similarity measure to at least one threshold (832, 834) to detect the at least one inhalation noise burst; and characterizing (1354, 1356) the at least one detected inhalation noise burst.

L'invention concerne un procédé qui permet de caractériser un bruit d'inhalation à l'intérieur d'un système de distribution d'air pressurisé, lequel procédé consiste à: produire un modèle de bruit d'inhalation (912, 1012) sur la base du bruit d'inhalation; recevoir un signal d'entrée (802) comprenant un bruit d'inhalation comprenant au moins une salve de bruit d'inhalation; comparer (810) le signal d'entrée au modèle de bruit afin d'obtenir une mesure de similarité; comparer la mesure de similarité à au moins un seuil (832, 834) afin de détecter ladite salve de bruit d'inhalation; et caractériser (1354, 1356) ladite salve de bruit d'inhalation détectée.

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