Decay spectra are presented which describe the control of normal modes of an enclosed sound field using active absorbers. The visualization techniques are introduced in the context of a resonant waveguide and extended to investigate the acoustics of a small reverberant room. Results demonstrate that active absorbers offer a practical solution to the problems introduced by discrete low-frequency modes.

Authors: Darlington, P.; Avis, M. R.
Affiliation: University of Salford, Salford, United Kingdom
AES Convention: 100 (May 1996) Paper Number: 4192
Publication Date: May 1, 1996
Subject: Architectural Acoustics and Sound Reinforcement

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