EP 2757811 B1 20171101 - Modal beamforming
Title (en)
Modal beamforming
Title (de)
Modale Strahlformung
Title (fr)
Formation de faisceau modal
Publication
Application
Priority
EP 13152209 A 20130122
Abstract (en)
[origin: EP2757811A1] A method and system for generating an auditory scene that comprises: receiving eigenbeam outputs, the eigenbeam outputs having been generated by decomposing a plurality of audio signals, each audio signal having been generated by a different microphone of a microphone array, wherein each eigenbeam output corresponds to a different eigenbeam for the microphone array; generating the auditory scene based on the eigenbeam outputs and their corresponding eigenbeams, wherein generating the auditory scene comprises applying a weighting value to each eigenbeam output to form a steered eigenbeam output; and combining the weighted eigenbeams to generate the auditory scene, wherein generating the auditory scene further comprises applying a regularized equalizer filter to each eigenbeam output or steered eigenbeam output, the regularized equalizer filter(s) being configured to compensate for acoustic deficiencies of the microphone array and having a regularized equalization function.
IPC 8 full level
H04R 3/00 (2006.01)
CPC (source: EP)
H04R 3/005 (2013.01); H04R 2201/401 (2013.01)
Citation (examination)
BERTET ST PRG A(C)PHANIE ET AL: "3D Sound Field Recording with Higher Order Ambisonics - Objective Measurements and Validation of Spherical Microphone", AES CONVENTION 120; MAY 2006, AES, 60 EAST 42ND STREET, ROOM 2520 NEW YORK 10165-2520, USA, 1 May 2006 (2006-05-01), XP040507751
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 13152209 A 20130122