Adaptive Modeling of Details for Physically-Based Sound Synthesis and Propagation

Abstract

In order to create an immersive virtual world, it is crucial to incorporate a realistic aural experience that complements the visual sense. Physically-based sound simulation is a method to achieve this goal and automatically provides audio-visual correspondence. It simulates the physical process of sound: the pressure variations of a medium originated from some vibrating surface (sound synthesis), propagating as waves in space and reaching human ears (sound propagation). The perceived realism of simulated sounds depends on the accuracy of the computation methods and the computational resource available, and often times it is not feasible to use the most accurate technique for all simulation targets. I propose techniques that model the general sense of sounds and their details separately and adaptively to balance the realism and computational costs of sound simulations.

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Document Details

Document Type
Technical Report
Publication Date
Mar 21, 2015
Accession Number
AD1023959

Entities

People

  • Hengchin Yeh

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Acoustics
  • Architectural Acoustics
  • Artificial Intelligence
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Graphics
  • Differential Equations
  • Diffraction
  • Fluid Dynamics
  • Geometric Forms
  • Mathematical Filters
  • Mechanics
  • Physics Laboratories
  • Three Dimensional
  • Two Dimensional
  • Virtual Reality

Fields of Study

  • Computer science

Readers

  • Computational Modeling and Simulation
  • Speech Processing/Speech Recognition.
  • Wave Propagation and Nonlinear Chaotic Dynamics.

Technology Areas

  • Space