A new campaign of experiments was run on the floor of a large room to obtain a long enough anechoic time window: this permitted to study the first reflection from the panels themselves and their diffusion uniformity. The results are discussed, comparing them with past measurements and with the ones from a simplified set-up with a smaller geometry. Some key matters to measurement are discussed, they were proposed in a recent comment letter posted to the specific AES-4id document committee on its reaffirmation. An analysis of the single reflection and reflectivity data was undertaken to investigate the behavior of a perforated panel and the measurement set-up overall potential.

Authors: Rizzi, Lorenzo; Farina, Angelo; Galaverna, Paolo; Martignon, Paolo; Rosati, Andrea; Conti, Lorenzo
Affiliations: LAE - Laboratorio di Acustica ed Elettroacustica; University of Parma; Genesis Acoustic Workshop(See document for exact affiliation information.)
AES Convention: 123 (October 2007) Paper Number: 7241
Publication Date: October 1, 2007
Subject: Acoustic Modeling

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