In a previous paper [1], it was shown that the influence of neglecting the incidence-angle dependence of absorption coefficients in a single-source, shoebox room model was insignificant as far as simulation results are concerned. Neglecting phase shift at each reflection led, however, to a significant difference in the predicted pressure level in the same model. This paper investigates the same two questions in a complicated model with several sources and a diversity of surface materials. It attempts to analytically estimate the error associated with the disregard of these two issues.

Authors: El-Saghir, Emad; Feistel, Stefan
Affiliations: Acoustic Design Ahnert Limited; SDA Software Design Ahnert GmbH(See document for exact affiliation information.)
AES Convention: 120 (May 2006) Paper Number: 6737
Publication Date: May 1, 2006
Subject: Room and Architectural Acoustics

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