First moment of spectrum (Pierre Divenyi )

Subject: First moment of spectrum
From:    Pierre Divenyi  <pdivenyi(at)MARVA4.NCSC.MED.VA.GOV>
Date:    Tue, 13 Jun 2000 12:14:48 -0700

I am amazed that no phonetician has so far bothered to weigh in in this debate, and I have not seen any psychoacoustic concerns addressed, either. For one, there are bi- and multimodal spectra in the acoustic world around us. Prey tell, what would the first moment tell about an /i/ or /u/ vowel? Would you be able to identify any of these vowels (and most of the others) if somebody only told you its first moment? In the case of differentiating /i/ and /u/, not even the second moment would be of much help. Furthermore, as profile analysis tells us, our ears don't simply resolve complex spectra by zeroing in on the first moment and we can tune our listening to monitor several bands simultaneously and quite effectively. The moment should not be regarded more than a mere first-approximation to the auditory characteristics of complex spectra. Pierre Divenyi **************************************************************************** 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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