Achieving Realistic Auralisations Using an Efficient Hybrid 2D Multi-plane FDTD Acoustic Model

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ConferenceEAA Joint Symposium on Auralization and Ambisonics
CountryGermany
CityBerlin
Conference date(s)3/04/145/04/14

Publication details

DatePublished - 3 Apr 2014
Number of pages132
Original languageEnglish

Abstract

This research examines the validity of utilising a 2D multi-plane FDTD acoustic model to simulate low frequency sound propagation as part of a hybrid room impulse response (RIR) synthesis system. Analytic results, pertaining to the comparison of simulated low frequency multi-plane RIRs with both practical RIR measurements and 3D FDTD simulated RIRs, demonstrate that a good level of accuracy is attained through use of this hybrid modelling paradigm. This claim is further supported, in part, by comparative subjective test results. Furthermore, 2D multi-plane simulations are shown to be far more efficient than full 3D FDTD modelling procedures as they achieve a ∼98% reduction in computation time.

    Research areas

  • auralisation, FDTD methods, room acoustics

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