Active acoustic devices comprising panel members

H - Electricity – 04 – R

Patent

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Details

H04R 7/06 (2006.01) H04R 7/04 (2006.01) H04R 7/10 (2006.01)

Patent

CA 2318292

Active acoustic device comprises a panel member (11) having distribution of resonant modes of bending wave action determining acoustic performance in conjunction with transducer means (31-34). The transducer means (31-34) is coupled to the panel member (11) at a marginal position. The arrangement is such as to result in acoustically acceptable action dependent on said distribution of active said resonant modes. Methods of selecting the transducer location, or improvement by location of localised marginal clamping, rely on assessing best or better operative interaction of said transducer means (31-34) and the panel members (11) according to parameters of acoustic output for the device as an acoustic radiator.

Dispositif acoustique actif qui comporte un panneau (11) ayant une répartition des modes de résonance de l'action des ondes de flexion qui détermine la performance acoustique en conjonction avec des transducteurs (31-34). Les transducteurs (31-34) sont couplés au panneau (11) en une position périphérique. La disposition est telle qu'il en résulte une action acoustiquement acceptable dépendant de la répartition des modes de résonance actifs. Des procédés de sélection de l'emplacement des transducteurs, ou d'amélioration par l'emplacement du serrage périphérique localisé, reposent sur l'évaluation d'une interaction opérationnelle, meilleure ou la meilleure, desdits transducteurs (31-34) et des panneaux (11) selon des paramètres de sortie acoustique pour le dispositif en tant qu'élément rayonnant acoustique.

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