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1. (WO2014193993) FILTERING WITH BINAURAL ROOM IMPULSE RESPONSES

Pub. No.:    WO/2014/193993    International Application No.:    PCT/US2014/039848
Publication Date: Fri Dec 05 00:59:59 CET 2014 International Filing Date: Thu May 29 01:59:59 CEST 2014
IPC: H04S 5/00
G10L 19/008
H04S 1/00
H04S 7/00
H04R 5/04
Applicants: QUALCOMM INCORPORATED
Inventors: XIANG, Pei
SEN, Dipanjan
PETERS, Nils, Günther
MORRELL, Martin, James
Title: FILTERING WITH BINAURAL ROOM IMPULSE RESPONSES
Abstract:
A device comprising one or more processors is configured to determine a plurality of segments for each of a plurality of binaural room impulse response filters, wherein each of the plurality of binaural room impulse response filters comprises a residual room response segment and at least one direction-dependent segment for which a filter response depends on a location within a sound field; transform each of at least one direction-dependent segment of the plurality of binaural room impulse response filters to a domain corresponding to a domain of a plurality of hierarchical elements to generate a plurality of transformed binaural room impulse response filters, wherein the plurality of hierarchical elements describe a sound field; and perform a fast convolution of the plurality of transformed binaural room impulse response filters and the plurality of hierarchical elements to render the sound field.