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Convention Paper

Anechoic Chamber Walls: Should They be Resistive or Reactive at Low Frequencies

Authors: Keele, Jr., D. B. (Don)

AES Convention 94 · Paper 3572 · March 1993

Abstract

Conventional anechoic chamber design methods dictate that the acoustic impedance of the chamber's boundaries should be purely resistive (complete absorption) over the whole operational range of the chamber. Theory suggests, however, that a relatively small, spherically shaped chamber could be designed that operates down to any arbitrary frequency, if the chamber walls are mass-reactive at low frequencies (where the wavelengths are much larger than the chamber) and absorptive at high frequencies. This paper explores these ideas.

Details

Published in
AES Convention 94
AES Convention
94
Paper number
3572
Publication date
March 6, 1993
Session subject
Architectural Acoustics
Affiliation
DBK Associates, Elkhart, IN (See document for exact affiliation information.)
Type
Convention Paper