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.COVER("1",|COMPUTER SIMULATION OF MUSIC↓INSTRUMENT TONES IN↓REVERBERANT ENVIRONMENTS|,
."John M. Chowning↓John M. Grey↓James A. Moorer↓Loren Rush",,,June 1974);
%1This is a reprint of selected portions of the NSF proposal which
resulted in a grant to the computer music group for research over a
two-year period.
Novel and powerful computer simulation techniques have been developed
which produce realistic music instrument tones that can be
dynamically moved to arbitrary positions within a simulated
reverberant space of arbitrary size by means of computer control of
four loudspeakers. Research support for the simulation of complex
auditory signals and environments will allow the further development
and application of computer techniques for digital signal processing,
graphics, and computer based subjective scaling, toward the analysis,
data reduction, and synthesis of music instrument tones and
reverberant spaces. Main areas of inquiry are: 1) those physical
characteristics of a tone which have perceptual significance, 2) the
simplest data base for perceptual representation of a tone, 3) the
effect of reverberation and location on the perception of a tone, and
4) optimum artificial reverberation techniques and position and
number of loudspeakers for producing a full illusion of azimuth,
distance, and altitude.