Audio technology (PS45000 )

Subject: Audio technology
From:    PS45000  <PS45(at)MUSICA.MCGILL.CA>
Date:    Wed, 31 Mar 1993 10:27:15 EST

Hi, I'm looking for some illustrative examples of the impact of Psychoacoustics research on the development of Audio Technologies. Some recent developments in this area are the data-reduction coding schemes used by Philips in designing the Digital Compact Cassette, and by Sony in designing the Minidisc. The data compression is based on considerations of auditory masking, and limited frequency response. The descriptions I've run into about the underlying research that led to these techniques are very scanty and basic. Does anyone out there have more detailed information on these, and other techniques that evolved as a direct result of auditory research ? - Punita

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Electrical Engineering Dept., Columbia University