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Convention Paper

A Plane Wave Transducer: Technology and Applications

Authors: Kelloniemi, Antti; Mettälä, Kari

AES Convention 121 · Paper 6945 · October 2006

Abstract

A method of high volume manufacturing of a plane wave transducer element is presented with application examples and measurement results. The element produces a plane wave, which exhibits remarkably less geometric attenuation with increasing distance than conventional cone loudspeakers. These new, highly directive audio transducers are beneficial in several uses. As the sound is transmitted only to the wanted direction, the amount of reflections deteriorating the sound quality is minimized and the amount of disturbance at surrounding space is diminished. A directive microphone can be produced using the same technology, which in turn enables the construction of a locally controlled active noise cancellation panel.

Details

Published in
AES Convention 121
AES Convention
121
Paper number
6945
Publication date
October 6, 2006
Session subject
Loudspeakers
Affiliation
Panphonics Oy (See document for exact affiliation information.)
Type
Convention Paper