This contribution deals with the comparison of three prediction software, and objective and subjective assessment of scattered sound in the example of a virtual concert hall. The influence of scattered sound on the objective room acoustical parameters like T30, EDT, C80, D50 and G, is investigated. Six different alternatives were simulated, where scattering coefficients values s = 10, 30, 50, 60, 70 and 90 % respectively, were applied to the interior surfaces of the ceiling, side and rear walls. Analysis has been performed by comparing the results of objective room acoustical parameters predicted by simulations done in the software Odeon® 10.1, Catt-Acoustic® v 8.0. and Raven on one hand, and by investigation of subjective perception of scattered sound on the other hand. Listening tests applying the 3AFC method were performed with stimuli presented to subjects via headphones by using signals auralized in one of the software (Odeon® 10.1).

Objective and subjective assessment of scattered sound in a virtual acoustical environment simulated with three different algorithms / Shtrepi, Louena; Pelzer, S.; Rychtáriková, M.; Vitale, R.; Astolfi, Arianna; Vorländer, M.. - ELETTRONICO. - (2012). (Intervento presentato al convegno INTERNOISE 2012 tenutosi a New York City (USA) nel 19-22 august 2012).

Objective and subjective assessment of scattered sound in a virtual acoustical environment simulated with three different algorithms

SHTREPI, LOUENA;ASTOLFI, Arianna;
2012

Abstract

This contribution deals with the comparison of three prediction software, and objective and subjective assessment of scattered sound in the example of a virtual concert hall. The influence of scattered sound on the objective room acoustical parameters like T30, EDT, C80, D50 and G, is investigated. Six different alternatives were simulated, where scattering coefficients values s = 10, 30, 50, 60, 70 and 90 % respectively, were applied to the interior surfaces of the ceiling, side and rear walls. Analysis has been performed by comparing the results of objective room acoustical parameters predicted by simulations done in the software Odeon® 10.1, Catt-Acoustic® v 8.0. and Raven on one hand, and by investigation of subjective perception of scattered sound on the other hand. Listening tests applying the 3AFC method were performed with stimuli presented to subjects via headphones by using signals auralized in one of the software (Odeon® 10.1).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2502969
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