Pitch/Loudness Discrimination for alerting schemes ("Good, Michael (MN65)" )

Subject: Pitch/Loudness Discrimination for alerting schemes
From:    "Good, Michael (MN65)"  <good_michael(at)HTC.HONEYWELL.COM>
Date:    Tue, 10 Nov 1998 15:53:32 -0600

> Hello all, I have a quick question and I hope someone can provide some insight or point me in the right direction. I am currently working at Honeywell and am involved in a project where we are looking at various alerting schemes for the flightdeck of the future business jet. Certainly aural alerts will be one component of the alerting scheme that is developed. Undoubtedly aural signals that are used will vary in terms of their pitch and their loudness. So...this leads me to my question. What are our discrimination abilities for signals of different loudness levels and pitches. That is, how many different pitch levels can humans discriminate and how many different loudness levels can we discriminate? Any help anyone could provide would be greatly appreciated. Thanks in advance. Mike McGill is running a new version of LISTSERV (1.8d on Windows NT). Information is available on the WEB at http://www.mcgill.ca/cc/listserv

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DAn Ellis <dpwe@ee.columbia.edu>
Electrical Engineering Dept., Columbia University