G - Physics – 10 – K
Patent
G - Physics
10
K
G10K 11/178 (2006.01) H04S 3/00 (2006.01)
Patent
CA 2621553
The invention concerns a method and device for actively correcting acoustic properties of a listening zone (27) of an acoustic space (1), comprising means for converting a signal to be reproduced (2, 4) in an acoustic space (1), means for attenuating resonance including at least means for measuring the perturbed sound signal (15), means for processing an electric signal (6) and at least one secondary sound reproduction source (8). The invention is characterized in that the means for measuring the perturbed sound signal (15) are distributed in several predetermined measuring positions (5) in the acoustic space (1), the secondary sound reproduction sources (8) are distributed in several predetermined correcting positions (17) in the acoustic space (1), the resonance attenuating means is coupled with means for processing the signal to be reproduced (3) and the electric signal processing means (6) includes at least one signal controlling means (7) connected to each means for measuring the perturbed sound signal (15).
L'invention concerne un procédé et un dispositif de correction active des propriétés acoustiques d'une zone d'écoute (27) d'un espace sonore (1) comprenant un moyen de conversion d'un signal à reproduire (2, 4) dans un espace sonore (1), un moyen d'atténuation des résonances comportant au moins un moyen de mesure du signal sonore perturbé (15), un moyen de traitement du signal électrique (6) et au moins une source de reproduction sonore secondaire (8). Selon l'invention, les moyens de mesure du signal sonore perturbé (15) sont répartis en plusieurs positions de mesures (5) prédéterminées dans l'espace sonore (1), les sources de reproduction sonore secondaire (8) sont répartis en plusieurs positions de correction (17) prédéterminées dans l'espace sonore (1), le moyen d'atténuation des résonances est couplé avec un moyen de traitement du signal à reproduire (3) et le moyen de traitement du signal électrique (6) comprend au moins un moyen de contrôle du signal (7) relié à chaque moyen de mesure du signal sonore perturbé (15).
Centre National de La Recherche Scientifique
Gowling Lafleur Henderson Llp
LandOfFree
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