Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!mahendo!wlbr!lonex.radc.af.mil!blackbird.afit.af.mil!gtarr
From: gtarr@afit.af.mil (Vax Headrm)
Newsgroups: comp.ai.neural-nets
Subject: Discrete Frequency Paradox
Keywords: speech, bilogy, help
Message-ID: <1991Mar12.160801.23281@afit.af.mil>
Date: 12 Mar 91 16:08:01 GMT
Organization: Air Force Institute of Technology
Lines: 10

Can someone please help me find a reference to or an
individual who know anything about something called
the discrete frequency paradox.  Its supposed to be one
of the few audio illusions.  When played it sounds like a
continually increasing frequency, but just goes on more or
less forever.  I think the guy who first wrote about it
is named sheppard, but I'm not sure.  Please help,
either post or send response to gtarr@blackbird.afit.af.mil.

Thanks.