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Journal Article

Comparison of Four Subwoofer Measurement Techniques

Authors: Melon, Manuel; Langrenne, Christophe; Rousseau, David; Herzog, Philippe

Journal of the Audio Engineering Society · Volume 55 · Issue 12 · pp. 1077–1091 · December 2007

Abstract

Acoustic measurements of loudspeakers are difficult to perform at very low frequencies, and therefore their interpretation is often tricky. Four subwoofer measurement techniques are compared in terms of frequency response and directivity. The methods were selected with an attempt to avoid assumptions about the behavior of the loudspeakers: anechoic room, pseudo free field, reference chamber, and field separation. Three subwoofers were tested: two closedbox systems and an active/passive system. Discrepancies between the results are discussed and explained where possible.

Details

Publication
Journal of the Audio Engineering Society
Volume
55
Issue
12
Pages
1077–1091
Publication date
December 6, 2007
Affiliation
CNAM Laboratoire d’Acoustique, Paris Cedex, France ; BC Acoustique, Alfortville, France ; LMA—CNRS, Marseille Cedex, France (See document for exact affiliation information.)
Type
Journal Article