A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 11/08 (2006.01) G10K 11/04 (2006.01)
Patent
CA 2710415
The present invention relates to an acoustic device for linear perceived-sound attenuation, comprising a channel (1) along which said sound propagates from an entry (2) to an exit (3), characterized in that it comprises, combined so as to make the perceived sound undergo a linear attenuation, at its entry (2), means (4) for attenuating and setting into resonance sound propagating through the latter as far as at least one filter (6) opening as exit (3), onto means (7) for accentuating the filtered sound, in particular its short-wave frequencies, said accentuating means consisting of a frustoconical portion of said channel (1) having a cross section that increases from said housing (5) towards said exit (3).
La présente invention concerne un dispositif acoustique d'atténuation linéaire du son perçu, comprenant un canal (1) véhiculant ledit son depuis une entrée (2) jusqu'à une sortie (3), caractérisé par le fait qu'il comprend, combinés de manière à conférer une atténuation linéaire du son perçu, en entrée (2), des moyens (4) d'atténuation et de mise en résonance dudit son véhiculant ce dernier jusqu'à au moins un filtre (6) débouchant, en sortie (3), sur des moyens (7) d'accentuation du son filtré, en particulier ses fréquences à ondes courtes, lesdits moyens d'accentuation étant constitués d'une portion dudit canal (1) de forme tronconique de section croissante depuis ledit logement (5) vers ladite sortie (3).
Angot Priscille
Lopez Franck
Earsonics
Marks & Clerk
LandOfFree
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