Air Absorption Filtering Method Based on Approximate Green's Function for Stokes' Equation
2021 24th International Conference on Digital Audio Effects (DAFx)(2021)
摘要
Air absorption effects lead to significant attenuation in high frequencies over long distances and this is critical to model in wide-band virtual acoustic simulations. Air absorption is commonly modelled using filter banks applied to an impulse response or to individual impulse events (rays or image sources) arriving at a receiver. Such filter banks require non-trivial fitting to air absorption at...
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关键词
Absorption,Finite impulse response filters,Atmospheric modeling,Filter banks,Low-pass filters,Attenuation,Mathematical models
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