Recent progress in profile analysis? (Peter Meijer )

Subject: Recent progress in profile analysis?
From:    Peter Meijer  <peter.b.l.meijer(at)PHILIPS.COM>
Date:    Thu, 11 Nov 1999 18:07:16 +0100

Dear All, I am looking for an update on recent research on auditory profile analysis (temporal/spectral shape discrimination),=20 in particular where it could help narrow the remaining gap between what is known scientifically about the perceptual limits for discriminating complex sounds and how that=20 will limit the (still highly experimental) auditory displays as are being proposed and developed for blind=20 people - see the link near the end of this message. I know of the pioneering work done by David Green, and=20 the later work performed by Ward Drennan, but I'd like to find still more recent work.=20 For instance, one recent paper by Heinz and Formby seems=20 to move still closer to studying and quantifying some of=20 the perceptual limits for the same kinds of temporal and=20 spectral shapes that often arise with auditory displays=20 that use spectral synthesis to represent imagery (although Heinz and Formby here used noise instead of complex spectra created by additive synthesis, see "Detection of time- and bandlimited increments and decrements in a random-level=20 noise", J. Acoust. Soc. Am. 106, July 1999, pp. 313-326). Even the parameter settings that they used for their study are for the most part comparable to those that I have been applying for quite some time for auditory display purposes,=20 so it looks like the gap between the two fields is indeed=20 narrowing at least in the sense that there is much overlap=20 w.r.t. the kinds of sounds that are being employed/studied. Any other recent work that might help deepen our current understanding of the perceptual limits of auditory displays? Thanks for any recent pointers, Peter Meijer Soundscapes from The vOICe - Seeing with your Ears! =

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