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I'm happy to announce a MATLAB toolbox that provides a physical approximation of late field reverberation for large loudspeaker arrays. There is also a binaural adaption amenable to 3DOF head tracking. The algorithm uses a B-Format RIR and decorrelation filters to approximate the spatial and frequency autocorrelation of an acoustic diffuse field. There are three JAES papers and a related JASA paper describing the formal details. A major goal of this work was to provide the right balance of physical approximation and logistical ease such that it was useful to the perceptual research community. It does require another piece of software to model the direct path and early reflections. The Toolbox outputs the decorrelation filters, you'll need to plumb that into your experiment. Filters are specific to your array and to the RIR's RT60. There is a simple binaural auralization utility. https://github.com/davidromblom/DiffuseFieldModeling |