Interactive Simulation of rigid body interaction with friction-induced sound generation

• Published in: IEEE transactions on speech and audio processing Vol. 13; no. 5; pp. 1073 - 1081
• Main Authors: Avanzini, F., Serafin, S., Rocchesso, D.
• Format: Journal Article
• Language: English
• Published: IEEE 01.09.2005
• Subjects: Animation; Application software; Audio-visual contact simulation; Audiovisual; Coherence; Computational modeling; Computer graphics; Computer simulation; Control system synthesis; elasto-plastic friction models; Friction; Haptic interfaces; Interactive; Mathematical models; modal synthesis; nonlinear acoustic systems; Nonlinear acoustics; Rigid-body dynamics; sound source modeling; Synthesis
• ISSN: 1063-6676; 1558-2353
• DOI: 10.1109/TSA.2005.852984

Acoustic simulation of friction is a particularly challenging task, because continuous (strong) contact conditions require a tight and veridical integration of the synthesis layer with the control input. This paper presents an algorithmic realization that combines recently proposed physical models of friction with the lumped modal description of resonating bodies. It is shown that the resulting nonlinear dynamical system can be discretized using a numerical technique that allows efficient and accurate simulation. Applications in the context of interactive audio-visual animation on low-cost general-purpose computers are demonstrated, and an approach to joint audio-visual synthesis is proposed that provides fine-scale synchronization and high coherence between the two modalities. The interactive animations show that the model is successful in reproducing several salient everyday sound phenomena, such as rubbing, braking, and squeaky doors.