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The Modeling and Synthesis of Musical Signals with PRISM

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.:

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