Sound Research WIKINDX
Sound Research WIKINDX |
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Raghuvanshi, N., Lauterbach, C., Chandak, A., Manocha, D., & Lin, M. C. (2007). Symphony: Realtime physically based sound synthesis for large environments. Communications of the ACM, 50(7), 66–73. Added by: Mark Grimshaw-Aagaard (10/01/2008, 11:33) Last edited by: Mark Grimshaw-Aagaard (22/01/2008, 04:03) |
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| Resource type: Journal Article Peer reviewed BibTeX citation key: Raghuvanshi2007 Email resource to friend View all bibliographic details  |
Categories: Sound Design Keywords: Procedural audio, Synthesis Creators: Chandak, Lauterbach, Lin, Manocha, Raghuvanshi Collection: Communications of the ACM |
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| Abstract |
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We present an interactive approach for generating realistic physically-based sounds from rigid-body dynamic simulations. We use spring-mass systems to model each object’s local deformation and vibration, which we demonstrate to be an adequate approximation for capturing physical effects such as magnitude of impact forces, location of impact, and rolling sounds. No assumption is made about the mesh connectivity or topology. Surface meshes used for rigid-body dynamic simulation are utilized for sound simulation without any modifications. We use results in auditory perception and a novel priority-based quality scaling scheme to enable the system to meet variable, stringent time constraints in a real-time application, while ensuring minimal reduction in the perceived sound quality. With this approach, we have observed up to an order of magnitude speed-up compared to an implementation without the acceleration. As a result, we are able to simulate moderately complex simulations with upto hundreds of sounding objects at over 100 frames per second (FPS), making this technique well suited for interactive applications like games and virtual environments. Furthermore, we utilize OpenAL and EAXTM on Creative Sound Blaster Audigy 2TM cards for fast hardware-accelerated propagation modeling of the synthesized sound.
Added by: Mark Grimshaw-Aagaard Last edited by: Mark Grimshaw-Aagaard |