EP 2680262 B1 20150513 - Method for suppressing noise in an acoustic signal for a multi-microphone audio device operating in a noisy environment
Title (en)
Method for suppressing noise in an acoustic signal for a multi-microphone audio device operating in a noisy environment
Title (de)
Verfahren zur Geräuschdämpfung eines Audiosignals für eine Multimikrofon-Audiovorrichtung, die in lauten Umgebungen eingesetzt wird
Title (fr)
Procédé de débruitage d'un signal acoustique pour un dispositif audio multi-microphone opérant dans un milieu bruité
Publication
Application
Priority
FR 1256049 A 20120626
Abstract (en)
[origin: EP2680262A1] The method involves denoising two parts of a spectrum with implementation of an adaptive algorithm estimator by denoising and exploiting a character of a useful signal from a sensor to another sensor between first sub-array sensors by a first adaptive algorithm estimator (14) for a high frequency part and by denoising by prediction of noise from the sensor to another sensor between second sub-array sensors by a second adaptive algorithm estimator (18) for a low frequency part. The spectrum is reconstructed (22) by combining signals delivered after denoising the two parts of the spectrum. The character is a predictable character. The sensors of the first sub-array of sensors are unidirectional sensors oriented along direction of a speech source.
IPC 8 full level
G10L 21/0208 (2013.01); G10L 21/0216 (2013.01)
CPC (source: EP US)
G10L 21/0208 (2013.01 - EP US); H04R 3/002 (2013.01 - US); G10L 2021/02166 (2013.01 - EP US)
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)
EP 2680262 A1 20140101; EP 2680262 B1 20150513; CN 103517185 A 20140115; CN 103517185 B 20180921; FR 2992459 A1 20131227; FR 2992459 B1 20140815; US 2013343558 A1 20131226; US 9338547 B2 20160510
DOCDB simple family (application)
EP 13171948 A 20130614; CN 201310256621 A 20130625; FR 1256049 A 20120626; US 201313915298 A 20130611