Accession Number : AD1023959


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


Descriptive Note : Technical Report


Corporate Author : Impulsonic, Inc. Chapel Hill United States


Personal Author(s) : Yeh,Hengchin


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1023959.pdf


Report Date : 21 Mar 2015


Pagination or Media Count : 166


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.


Descriptors :   sound propagation , acoustic propagation , virtual reality , simulation , vibration , acoustic waves


Subject Categories : Acoustics


Distribution Statement : APPROVED FOR PUBLIC RELEASE