Subjective perception of seat dip attenuation

Davies, WJ; Cox, TJ; Lam, YW

Abstract

An investigation has been conducted into the subjective perception of the seat dip effect (a low-frequency attenuation affecting sound travelling at grazing incidence over seating). In a realistic simulation of a concert hall sound field, the threshold of perception was a change of -3.8 +/- 0.2 dB in the 200 Hz octave band early energy, from 0 to 80 ms. The threshold was not greatly affected by the presence of reverberation. The size of the threshold means that low-frequency values of monaural early-energy parameters like C-80 are relatively unimportant. On examining measurements made in a rectangular concert hall, it was shown that the seat dip effect is audible at some seats, and that a combination of design methods would be needed to render it inaudible in most cases.

• Journal Article Type: Article
• Publication Date: Jan 1, 1996
• Deposit Date: Jul 16, 2012
• Publicly Available Date: Jul 10, 2018
• Journal: Acustica
• Print ISSN: 1610-1928
• Electronic ISSN: 1861-9959
• Publisher: Hirzel Verlag
• Peer Reviewed: Peer Reviewed
• Volume: 82
• Issue: 5
• Pages: 784-792
• Keywords: spaciousness, clarity, centre time, reverb, simulated
• Publisher URL: http://www.acta-acustica-united-with-acustica.com/
• Additional Information: Additional Information : VN001 ACUSTICA