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Convention Paper

Frequency Responses in Acoustical Enclosures

Authors: Han, H. L.

AES Convention 82 · Paper 2452 · March 1987

Abstract

An unresolved question in loudspeaker design is what should be made invariant with frequency. The present paper shows that for faithful sound-field reproduction in a living room both the direct-field response and the reverberant-field response should be flat. This can be achieved for a specific relationship between loud-speaker directivity factor and room constant. Extension of the theory to stereophony is made difficult by an as yet unexplained dichotic phenomenon. However, subjective evaluation of reproduction quality is possible with a new type of listening test. On equalizing sound-reinforcement systems, it has been found that high-frequency rolloff is required for natural sound. This effect is consistent with the theory presented in this paper. In studying this phenomenon, earlier workers have been misled by the experimental procedure devised by R.B. Schulein. It will be shown that their data do not say anything about the real situation.

Details

Published in
AES Convention 82
AES Convention
82
Paper number
2452
Publication date
March 6, 1987
Session subject
Acoustics
Affiliation
Department of Applied Physics, Delft University of Technology, Delft, The Netherlands (See document for exact affiliation information.)
Type
Convention Paper