Hathaway, A., C. Ainley, and L. M. Wang. (2013) “Effects of background noise alternating between two levels at varying time intervals on human perception and performance.” 21st International Congress on Acoustics; Montreal, Canada; June 2-7, 2013.
Proceedings of Meetings on Acoustics, Vol. 19, 040121 (2013); DOI: 10.1121/1.4800421
This research experiment aims to better quantify human perception and performance under increased background noise levels of varying intervals. Twenty-seven participants were tested over five 30 minute sessions where they were subjected to RC-29(H) and RC-47(RV) conditions created by broadband noise fluctuating on different time intervals. These intervals varied from two minutes to ten minutes, simulating the conditions of a noisy HVAC system turning on and off. The performance results of an arithmetic test dealing with short-term memory and a subjective questionnaire will be presented and compared to a similar test using broadband noise bursts and correlated to noise metrics such as perceived level (PL) and L1-L99. [Work supported by a NASA Nebraska Space Grant.]
Available at: http://works.bepress.com/lilymwang/35/