ACOUSTIC FILTER FOR A COAXIAL ELECTRO-ACOUSTIC TRANSDUCER

An acoustic filter suitable for an electro-acoustic transducer is provided. The acoustic filter has a relatively high frequency driver and a relatively low frequency driver situated on a common axis. The acoustic filter includes a baffle body having an outer side and an inner side, such that said ou...

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Bibliographic Details
Main Author VELICAN, Zeljko
Format Patent
LanguageEnglish
French
Published 23.01.2020
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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Summary:An acoustic filter suitable for an electro-acoustic transducer is provided. The acoustic filter has a relatively high frequency driver and a relatively low frequency driver situated on a common axis. The acoustic filter includes a baffle body having an outer side and an inner side, such that said outer side serves as a baffle for said high frequency driver and said inner side forms a first wall of at least one Helmholtz resonator including a chamber and a vent duct communicating with said chamber. L'invention concerne un filtre acoustique adapté à un transducteur électro-acoustique. Le filtre acoustique a un circuit d'attaque à fréquence relativement élevée et un circuit d'attaque à fréquence relativement faible situé sur un axe commun. Le filtre acoustique comprend un corps de déflecteur ayant un côté externe et un côté interne, de telle sorte que ledit côté externe sert de déflecteur pour ledit circuit d'attaque haute fréquence et ledit côté interne forme une première paroi d'au moins un résonateur de Helmholtz comprenant une chambre et un conduit d'évent communiquant avec ladite chambre.
Bibliography:Application Number: WO2019AU50734