Visualization of sound energy flows across coupled-volume system

Yun Jing, Ning Xiang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Visualizations based on a diffusion equation model are presented for transient sound energy in a two coupled-room system. Animations of time-dependent energy flow directions visualize the energy flows across coupled spaces. Particularly, the sound energy feedback is identified through the energy flow direction changes when the coupled room is more reverberant than the main room. This study reveals a "reversal" characteristic of energy flow directions which seems to be dependent on the size and the location of the aperture. Through Bayesian decay analysis and sound energy flow modeling, this work also discloses that the turning point on double-sloped energy decay is highly correlated to the time instant when the energy flow direction reverses.

Original languageEnglish (US)
Title of host publication38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
Pages4607-4614
Number of pages8
StatePublished - Dec 1 2009
Event38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009 - Ottawa, ON, Canada
Duration: Aug 23 2009Aug 26 2009

Publication series

Name38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
Volume7

Other

Other38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
CountryCanada
CityOttawa, ON
Period8/23/098/26/09

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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  • Cite this

    Jing, Y., & Xiang, N. (2009). Visualization of sound energy flows across coupled-volume system. In 38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009 (pp. 4607-4614). (38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009; Vol. 7).