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Convention Paper

Electronic Bass Trap

Authors: Kashani, Reza; Wischmeyer, James

AES Convention 117 · Paper 6277 · October 2004

Abstract

Bass traps, regardless of their effectiveness in abating bass acoustic coloration in a room have two, somewhat undesirable attributes: 1) large size and 2) lack of adaptability. An alternative to the use of bass traps, discussed in this paper, is incorporating a properly devised, feedback control scheme into a powered subwoofer making the subwoofer to exhibit the same dynamics as that of a bass trap. This patent pending, active coloration control solution which can be viewed as an' electronic bass trap 'adds acoustic damping to the low-frequency modes of a room. In addition to a powered subwoofer, the electronic bass trap uses a microphone and an op-amp circuit. Numerical and experimental results indicate the effectiveness of the electronic bass trap in adding acoustic damping to the low-frequency standing wave (s) in a room.

Details

Published in
AES Convention 117
AES Convention
117
Paper number
6277
Publication date
October 6, 2004
Session subject
Room and Architectural Acoustics; Sound Reinforcement
Affiliation
University of Dayton, Dayton, OH ; Bag End Loudspeakers, Barrington, IL (See document for exact affiliation information.)
Type
Convention Paper