Patent ID: 9197977
Filing Date: 2015-11-24
Classification: H04R,H04S

Abstract:
1. A computer-implemented method for simulating a binaural filter for a spatial point, the method comprising: in a signal processing system including a processor, accessing a plurality of pre-defined binaural filters, wherein each binaural filter further comprises a left ear head related transfer function filter and a right ear head related transfer function filter; selecting at least two nearest neighbor binaural filters from the plurality of predefined binaural filters; and performing an interpolation among the nearest neighbor binaural filters to obtain a new binaural filter, wherein the operation of performing an interpolation among the nearest neighbor binaural filters further comprises: determining an inter-aural time difference for each nearest neighbor head related transfer function filter; removing the inter-aural time difference of each nearest neighbor head related transfer function filter prior to the interpolation; interpolating the inter-aural time differences of the nearest neighbor binaural filters to obtain a new inter-aural time difference; and including the new inter-aural time difference in the new binaural filter.