Replacing voice harmonics ("David F. Rosenthal" )

Subject: Replacing voice harmonics
From:    "David F. Rosenthal"  <dfr(at)BRAZIL.IMRF.OR.JP>
Date:    Thu, 14 Jul 1994 10:22:02 +0900

Hi, I believe that I heard somewhere that there was a system for automatically replacing or fixing corrupted harmonics in human voice data, and that this is used to make telephone conversations clearer. Does anyone have any information about this? Thanks, dfr David Rosenthal International Media Research Foundation TOHMA Building B1 2-14-1 Nishi-Waseda Shinjuku-ku Tokyo, 169 JAPAN Telephone: (81-3) 3207-7171 Fax: (81-3) 3207-7172

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Electrical Engineering Dept., Columbia University