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SIGGRAPH 2001
Papers: Sound Simulation and Animation
This was a fascinating report on a previously overlooked field of inquiry -- synthesizing sounds digitally for use in animation and simulation. Not using samples or real-world sounds, but creating them completely from scratch, completely digitally. This is based on real physics equations for surface, material, and motion properties, and it works. Various demonstrations bore this out, as virtual models made of various materials bounced against other objects, and the sounds of impact, sliding, scraping, and rolling were generated on the fly, in real time. This subconsciously adds incredible realism. The force, vibration, emission, and propagation of a sound is calculated, and the sound is synthesized stochastically or using a wavetable. It uses a very small part of the CPU.
Also shown was an unrelated project in which a juggling troup used sensors placed on the stage, on juggling pins, and on themselves, to generate sound and images during performance. This was engineered by Neal Gershenfeld's group at MIT.
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