Alarm vigilance in the presence of 80 dBA pink noise with negative signal-to-noise ratios
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AbstractWorkers often have to be vigilant for critical auditory signals in the presence of loud noise. However this phenomenon appears to have received relatively less attention especially when the signal-to-noise ratios (SNRs) are less than unity (or - ve dB). In this study we focus on alarm vigilance in the presence of loud pink noise (80 dBA) and with SNR of -18, -21, -24 and -∞dB. The results show that people with no known hearing impairments, were able to detect a 56 dBA alarm in the presence of a noise level of 80 dBA (i.e., a SNR of -24 dB). The findings can help to establish threshold boundaries for audible alarm signal in the presence of loud noise.
All Author(s) ListKarunarathne B., So R.H.Y., Kam A.C.S.
Name of ConferenceContemporary Ergonomics and Human Factors 2014
Start Date of Conference07/04/2014
End Date of Conference10/04/2014
Place of ConferenceSouthampton
Country/Region of ConferenceGreat Britain
Detailed descriptionorganized by Institute of Ergonomics & Human Factors,
Pages443 - 449
LanguagesEnglish-United Kingdom

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