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.

Authors: Dodd, Mark; Oclee-Brown, Jack
Affiliations: Celestion International, Ipswich, UK and GP Acoustics, Maidstone, UK; GP Acoustics, Maidstone, UK(See document for exact affiliation information.)
Express Paper 14; AES Convention 153; October 2022
Publication Date: October 19, 2022 Import into BibTeX
Subject: Transducers
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=21894

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