Progressive Constant Frame Rate Guarantee for Geometric Sound Propagation

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Progressive Constant Frame Rate Guarantee for
Geometric Sound Propagation

• February 28, 2008

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Project Statement

• Given a user defined frame rate budget for
  geometric sound propagation optimize the impulse
  response obtained from the simulation. The
  optimization is in the sense that the Impulse
  Responses should be as close as possible to those
  without any frame rate constraints.

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Problem Statement

• Input
• Output

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Motivation

• Budget for audio simulation is usually
  constrained.
• Compute perceptually important frustums early and
  more frequently.
• Perform audio rendering at higher frame rate.
• Integration with system like PIT Demo to evaluate
  the user response.

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Previous Work

• Priority-Driven Acoustic Modeling for Virtual
  Environments Min and Funkhouser, 2000.
• Progressive and Approximate Techniques in
  Ray-Tracing based Radio Wave Propagation
  Prediction Models Chen et. al. 2004.
• Priority-driven ray tracing Yagel and Meeker.

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Time Line

• March 15th Develop theory for the optimization.
• March 30th Integrate optimization framework with
  Frustum Tracing framework.
• April 15th Integrate the optimization framework
  with PIT Demo.
• April 22nd Generate results and perform some
  basic analysis of the optimization.
• April 30th One or more of the above. Just in
  case I am not on schedule

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References

• Priority-Driven Acoustic Modeling for Virtual
  Environments, Patrick Min and Thomas Funkhouser,
  Proc. EUROGRAPHICS 2000, pages 179-188,
  Interlaken, Switzerland, August 2000
• Z. Chen, H.L. Bertoni, and A. Delis, Progressive
  and Approximate Techniques in Ray-Tracing based
  Radio Wave Propagation Prediction Models, IEEE
  Transactions on Antennas and Propagation, vol.
  52, no. 1, pp. 240-252, January 2004.
• R. Yagel and J. Meeker, "Priority-driven ray
  tracing", Journal of Visualization and Computer
  Animation, 8(1), pp. 17--32 (1997).

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Thanks