Re: Group delay variations (Pierre Divenyi )

Subject: Re: Group delay variations
From:    Pierre Divenyi  <pdivenyi(at)MARVA4.NCSC.MED.VA.GOV>
Date:    Thu, 29 Jun 2000 11:00:04 -0700

At 11:36 PM 6/28/00 -0400, Jont Allen wrote: >Pierre Divenyi wrote: > > > > This is getting interesting. Jont says that monaural and binaural phase > sensitivity are > > essentially the same, provided we look at (1) group delay and (2) the > variations > > therein. > >I did NOT say that. Not even close!!! Nor do I believe it. Reread my email! > >Jont Jont, Then please explain a little more clearly what you meant by this: " I would (and have done so in the past actually) measure the group delay. This does a nice job of characterizing the phase in a meaningful way, and avoids the problem of flat delay that does not really effect perception. If the group delay variations, either between the two ears, or across frequency in one ear, are too large, then you will hear that delay." To my understanding, you said (1) group delay is cool to measure phase, (2) people perceive changes in group delay, and (3) they do so whether these changes occur dichotically or monaurally. If this paraphrase of mine of the above quote from your e-mail is erroneous, then you will have to get yourself into yet another discussion on semantics which, as you indicate in your reply to Andrew, you enjoy every bit as little as I do. Cheers, Pierre **************************************************************************** Pierre Divenyi, Ph.D. Experimental Audiology Research (151) V.A. Medical Center, Martinez, CA 94553, USA Phone: (925) 370-6745 Fax: (925) 228-5738 E-mail : pdivenyi(at) ****************************************************************************

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