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Convention Paper

Predicting the Acoustical Performance of a Sound System by Computer

Authors: du Monteil, J. V.

AES Convention 84 · Paper 2564 · March 1988

Abstract

The EPIDAURE computer program which calculates room impulse responses using the cones method developed by the CSTS has been adapted to predict the acoustical performances of any sound system. The transfer function from the input signal to the listener is calculated from the entire real sound field without the approximations which can be found in other programs. Input data are the 3D geometry from architect's drawings and the surface absorption coefficients, the position and shifting in site and azimuth of the speakers, their directivities, their sound pressure levels at 1m, and their time delays. Echgograms at points located on a grid over audience surfaces are calculated. Output data are displayed in color maps of sound pressure level and speech intelligibility on the audience surfaces.

Details

Published in
AES Convention 84
AES Convention
84
Paper number
2564
Publication date
March 6, 1988
Session subject
Sound Reinforcement
Affiliation
Centre Scientifique et Technique du Baitiment, Saint-Martin-d'Heres, France (See document for exact affiliation information.)
Type
Convention Paper