SynCoPation: Interactive Synthesis-Coupled Sound Propagation

IEEE Transactions on Visualization and Computer Graphics
Atul RungtaDinesh Manocha

Abstract

Recent research in sound simulation has focused on either sound synthesis or sound propagation, and many standalone algorithms have been developed for each domain. We present a novel technique for coupling sound synthesis with sound propagation to automatically generate realistic aural content for virtual environments. Our approach can generate sounds from rigid-bodies based on the vibration modes and radiation coefficients represented by the single-point multipole expansion. We present a mode-adaptive propagation algorithm that uses a perceptual Hankel function approximation technique to achieve interactive runtime performance. The overall approach allows for high degrees of dynamism - it can support dynamic sources, dynamic listeners, and dynamic directivity simultaneously. We have integrated our system with the Unity game engine and demonstrate the effectiveness of this fully-automatic technique for audio content creation in complex indoor and outdoor scenes. We conducted a preliminary, online user-study to evaluate whether our Hankel function approximation causes any perceptible loss of audio quality. The results indicate that the subjects were unable to distinguish between the audio rendered using the approximate function ...Continue Reading

References

Mar 1, 1979·Hearing Research·E Terhardt
Oct 12, 2007·The Journal of the Acoustical Society of America·Samuel SiltanenLauri Savioja
Jul 9, 2008·The Quarterly Journal of Experimental Psychology : QJEP·Kirsteen M AldrichJudy Edworthy
Feb 23, 2013·IEEE Transactions on Visualization and Computer Graphics·Zhimin RenMing C Lin
Mar 22, 2014·IEEE Transactions on Visualization and Computer Graphics·Ravish MehraDinesh Manocha
Sep 12, 2015·IEEE Transactions on Visualization and Computer Graphics·Ravish MehraDinesh Manocha

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