Effect of temporal decay on perception of heavy-weight floor impact sounds

Title
Effect of temporal decay on perception of heavy-weight floor impact sounds
Authors
김재호
Keywords
SUBJECTIVE EVALUATION; QUALITY METRICS; ANNOYANCE; NOISE; BALL
Issue Date
2013-10
Publisher
ACOUSTICAL SOC AMER AMER INST PHYSICS, STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
Citation
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2013, 134(4), P.2730-2738
Abstract
This study investigates the effect of temporal decay on perception of heavy-weight floor impact sounds through auditory experiments. Heavy-weight impact sounds were recorded in apartment buildings with a box-framed type reinforced concrete structure using a rubber ball. Temporal decay was quantified by using the decay rate (DR), defined as the sound pressure level (SPL) decrease per second [dB/s], and the distribution of DR for heavy-weight impact sounds was calculated. An auditory experiment was conducted in order to examine the just noticeable difference (JND) of DR, which was determined by the criteria of 75% correct answers by subjects. It was found that the JND of DR is around 11 dB/s. Based on the distribution and JND of DR, another experiment was conducted to investigate the effect of DR on annoyance perception of heavy-weight floor impact sounds in relation to the level differences. The results indicate that SPL and DR significantly influence annoyance perception; the scale value of annoyance increases with decreasing DR and increasing SPL. It was also found that the degree of satisfaction with regards to impact sounds can be improved by increasing DR, by controlling the sound field of the receiving room. (C) 2013 Acoustical Society of America.
URI
https://asa.scitation.org/doi/10.1121/1.4818743http://hdl.handle.net/20.500.11754/44749
ISSN
0001-4966; 1520-8524
DOI
http://dx.doi.org/10.1121/1.4818743
Appears in Collections:
RESEARCH INSTITUTE[S](부설연구소) > RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE(산업과학연구소) > Articles
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