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Convention Paper

Subjective Validity of Figures of Merit for Room Aspect Ratio Design

Authors: Wankling, Matthew; Fazenda, Bruno

AES Convention 126 · Paper 7746 · May 2009

Abstract

Attempts have long been made to classify a room’s low frequency audio reproduction capability with regards to its aspect ratio. Common metrics used have relied on the homogeneous distribution of modal frequencies and from these a number of ‘optimal’ aspect ratios have emerged. However, most of these metrics ignore the source and receiver coupling to the mode shapes - only a few account for this in the derivation of a figure of merit. The subjective validity of these attempts is tested and discussed. Examples are given of supposedly good room ratios with bad performance and vice versa. Subjective assessment of various room scenarios is undertaken and a ranking order has been obtained to correlate with a proposed figure of merit.

Details

Published in
AES Convention 126
AES Convention
126
Paper number
7746
Publication date
May 6, 2009
Session subject
Room Acoustics & Loudspeaker Interaction
Affiliation
University of Huddersfield, Huddersfield, West Yorkshire, UK (See document for exact affiliation information.)
Type
Convention Paper