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Manymethods for the computation of edge-diff raction impulse responses are based on the Biot-Tolstoysolution, an explicit, continuous-time expression for diff raction by an infinite wedge. This expression contains twos in-gularities at the onset of the impulse response: one which is present for all source-receivercombinations, and a second which occurs only(More)
In time-domain simulations of sound propagation and/or scattering, it is possible to model the geometrical-acoustics (GA) components and the edge-diffraction components separately and combine the results into a " total " impulse response. However, such separate calculations can limit the efficiency and accuracy of the simulations because the two components(More)
The inclusion of edge diffraction has long been recognized as an improvement to geometrical-acoustics (GA) modeling techniques, particularly for acoustic simulations of complex environments that are represented as collections of finite-sized planar surfaces. One particular benefit of combining edge diffraction with GA components is that the resulting total(More)
Recently, a diffusion model has drawn attention in room-acoustic predictions. This paper proposes possible modifications to the diffusion model to predict the reverberation times and sound pressure distributions in enclosures. usually has a good performance for low absorption surfaces, the modified diffusion model, including a new boundary condition and a(More)
Noise exposure and the subsequent hearing loss are well documented aspects of military life. Numerous studies have indicated high rates of noise-induced hearing injury (NIHI) in active-duty service men and women, and recent statistics from the U.S. Department of Veterans Affairs indicate a population of veterans with hearing loss that is growing at an(More)
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