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Convention Paper

The Modeling and Synthesis of Musical Signals with PRISM

Authors: Phillips, Mark; Barish, Jeff; Maher, Rob

AES Convention 109 · Paper 5187 · September 2000

Abstract

Multidimensional signal modeling of musical notes can produce expressive and realistic synthesis for musical applications. The PRISM synthesis technology employs time-varying signal models using envelopes for pitch, power, and timbre evolution. PRISM also models the statistical variations of parameters over time in order to produce indefinitely long, nonlooped sustains while maintaining the character of the original note's sustain. The models from multiple signals are combined into a multidimensional parameter space. During synthesis, the desired location in the parameter space is mapped from input control values. Based on the desired location, the neighboring data sets are interpolated to form an intermediate, smoothly varying data set for synthesis. Using signal models allow intuitive and powerful modifications of note properties both offline and in real time.:

Details

Published in
AES Convention 109
AES Convention
109
Paper number
5187
Publication date
September 6, 2000
Session subject
Digital Signal Processing
Affiliation
3Com Corporation/U.S. Robotics Corporation, Boulder, CO (See document for exact affiliation information.)
Type
Convention Paper