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IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, VOL. 13, NO. 5, SEPTEMBER 2005 1073 Interactive Simulation of Rigid Body Interaction
 

Summary: IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, VOL. 13, NO. 5, SEPTEMBER 2005 1073
Interactive Simulation of Rigid Body Interaction
With Friction-Induced Sound Generation
Federico Avanzini, Stefania Serafin, and Davide Rocchesso
Abstract--Acoustic simulation of friction is a particularly chal-
lenging task, because continuous (strong) contact conditions re-
quire 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 simula-
tion. Applications in the context of interactive audio-visual anima-
tion on low-cost general-purpose computers are demonstrated, and
an approach to joint audio-visual synthesis is proposed that pro-
vides 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 phe-
nomena, such as rubbing, braking, and squeaky doors.
Index Terms--Audio-visual contact simulation, elasto-plastic

  

Source: Avanzini, Federico - Department of Information Engineering, UniversitÓ degli Studi di Padova

 

Collections: Computer Technologies and Information Sciences