Dynamic acoustic rendering

Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic

Reexamination Certificate

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C463S035000

Reexamination Certificate

active

11246495

ABSTRACT:
A method of acoustically rendering a virtual environment is described. The method includes receiving a subset of polygons derived for an acoustic display from a set of polygons generated for a graphical display. Acoustic reflections are determined from a sound source that bounce off of polygons in the subset of polygons to a listener position in the virtual environment. It is determined whether a polygon in the subset of polygons causes an occlusion of the sound source at the listener position, and a play list of sounds is generated based on the reflections and occlusions.

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“Interactive Acoustic Modeling of Complex Environments”, http://www.cs.princeton,edu/˜funk/rsas.html.
Funkhouser, Thomas et al,A Beam Tracing Approach to Acoustic Modeling for Interactive Virtual Environments, Computer Graphics (SIGGRAPH '98), Orlando, FL, Jul. 1998, p. 21-32.
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