Global Patent Index - EP 2362390 B1

EP 2362390 B1 20160106 - Noise suppression

Title (en)

Noise suppression

Title (de)

Rauschunterdrückung

Title (fr)

Suppression du bruit

Publication

EP 2362390 B1 20160106 (EN)

Application

EP 10250748 A 20100409

Priority

IN 312DE2010 A 20100212

Abstract (en)

[origin: EP2362390A1] The invention relates to detection and suppression or removal of noise in audio signals, with particular relevance for radio communication devices such as hand-portable radiotelephones, and discloses a method of suppressing noise in an audio signal, the method comprising: receiving an audio signal (801); dividing the received audio signal into a series of sampled audio frames (802); and for each of the sampled audio frames: determining whether noise is present in the audio frame by detecting a noise pattern in the sampled audio frame having one or more spectral peaks in a high frequency region of the audio signal spectrum; and, if noise is determined to be present in the audio frame (811), applying (908, 1005) a gain function to suppress the one or more spectral peaks in the sampled audio frame.

IPC 8 full level

G10L 21/0208 (2013.01); G10L 21/02 (2006.01); G10L 21/0232 (2013.01)

CPC (source: EP)

G10L 21/0208 (2013.01); G10L 21/0232 (2013.01)

Designated contracting state (EPC)

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 SE SI SK SM TR

DOCDB simple family (publication)

EP 2362390 A1 20110831; EP 2362390 B1 20160106

DOCDB simple family (application)

EP 10250748 A 20100409