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Express Paper Open Access

Wave-Shaping using novel single-Parameter waveguides

Authors: Dodd, Mark; Oclee-Brown, Jack

AES Convention 153 · Paper 14 · October 2022

Abstract

PA systems looking to cover a wide audience area with coherent sound are limited by current horn technology. With conventional single-surface horns, one can achieve either high input impedance or wide directivity but not both. Existing wave-shaping devices try to overcome these issues, but most are unable to transmit a wave coherently (without reflection, diffraction or resonance).
In this paper, we present a new type of wave-shaping waveguide based on maintaining single-parameter wave behaviour throughout the waveguide over a wide frequency range. Various examples are included illustrating the performance benefits of this type of waveguide compared to conventional solutions.

Details

Published in
AES Convention 153
AES Convention
153
Paper number
14
Publication date
October 6, 2022
Session subject
Transducers
Affiliation
Celestion International, Ipswich, UK and GP Acoustics, Maidstone, UK; GP Acoustics, Maidstone, UK (See document for exact affiliation information.)
Type
Express Paper