Subject: Re: Wake-up levels for auditory warning? From: Stephen McAdams <Stephen.McAdams(at)IRCAM.FR> Date: Thu, 26 Feb 1998 14:20:49 +0100>Does anyone know how loud a sound needs to be to *wake up* the intended >recipient (the sort of "smoke detector in the middle of the night" >scenario)? Just an anecdotal remark that points to a humongous individual differences problem in this kind of work. Our bedroom is on the 2nd floor of our house. I will wake up in the middle of the night if my baby daughter coughs once on the 1st floor, even when I have yellow foam earplugs that attenuate about 25 dB. A duet of earthquake and air raid siren would not wake my wife who does not (need to) wear earplugs to sleep. If anybody publishes waking thresholds as general data, I wouldn't believe them for a second. Stephen McAdams IRCAM, 1 place Igor-Stravinsky, F-75004 Paris, France smc(at)ircam.fr http://www.ircam.fr/ tel: (33 1) 4478-4838, fax (33 1) 4478-1540