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Convention Paper

On the Velocity Distribution at the Interface of Horn Driver and Horn

Authors: Behler, Gottfried K.; Makarski, Michael

AES Convention 116 · Paper 6097 · May 2004

Abstract

For the numerical simulation (BEM) of horns, the sound velocity distribution at the horn throat is required as one boundary condition. It is common to use plane wave excitation even at high frequencies since the shape of the real wave front in general is unknown. The error in the simulation result (directivity / frequency response) is difficult to predict and can only be judged by measurement of the real system.
To achieve accurate simulation results the specific velocity distribution of each driver is required which must be measured at the interface between horn driver and horn. A more general approach for simulation techniques is created using modal composition.
Measurements and simulations of different systems are compared to verify this method.

Details

Published in
AES Convention 116
AES Convention
116
Paper number
6097
Publication date
May 6, 2004
Session subject
Loudspeakers
Affiliation
Institute of Technical Acoustics, Aachen University, RWTH, Aachen,Germany (See document for exact affiliation information.)
Type
Convention Paper