Acoustic modeling apparatus and method using accelerated...

Details Acoustic modeling apparatus and method using accelerated... Acoustic modeling apparatus and method using accelerated...

2006-12-05

2006-12-05

Phan, Thai (Department: 2128)

Data processing: structural design, modeling, simulation, and em

Electrical analog simulator

Of physical phenomenon

C703S017000, C381S061000, C381S063000

Reexamination Certificate

active

07146296

ABSTRACT:
An acoustic modeling system and an acoustic modeling method use beam tracing techniques that accelerate computation of significant acoustic reverberation paths in a distributed virtual environment. The acoustic modeling system and method perform a priority-driven beam tracing to construct a beam tree data structure representing “early” reverberation paths between avatar locations by performing a best-first traversal of a cell adjacency graph that represents the virtual environment. To further accelerate reverberation path computations, the acoustic modeling system and method according to one embodiment perform a bi-directional beam tracing algorithm that combines sets of beams traced from pairs of avatar locations to efficiently find viable acoustic reverberation paths.

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Thomas Funkhouser, et al.; “A Beam Tracing Approach to Acoustic Modeling for Interactive Virtual Environments”;Computer Graphics(SIGGRAPH '98); Orlando, FL, Jul. 1998, pp. 1-12.

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