Global Patent Index - EP 3503581 A1

EP 3503581 A1 20190626 - REDUCING NOISE IN A SOUND SIGNAL OF A HEARING DEVICE

Title (en)

REDUCING NOISE IN A SOUND SIGNAL OF A HEARING DEVICE

Title (de)

REDUZIERUNG DES RAUSCHENS IN EINEM TONSIGNAL EINES HÖRGERÄTS

Title (fr)

RÉDUCTION DU BRUIT DANS UN SIGNAL SONORE D'UN DISPOSITIF AUDITIF

Publication

EP 3503581 A1 20190626 (EN)

Application

EP 17209252 A 20171221

Priority

EP 17209252 A 20171221

Abstract (en)

A method for reducing noise in a sound signal of a hearing device (10) comprises: receiving an inside channel sound signal (Si) from a first microphone (12) in an ear channel of a user, a first outside channel sound signal (S) from a second microphone (14) outside of the ear channel and a second outside channel sound signal (S) from a third microphone (16) outside of the ear channel; determining a desired signal (S) from the first and second outside channel sound signals (S, S) and a disturb signal (SD) from the first and second outside channel sound signals; determining a frequency band dependent weight factor (ω) by dividing a magnitude value of the desired signal (S) in a frequency band through at least a magnitude value of the disturb signal (S) in the frequency band; and generating a noise reduced sound signal (S) by multiplying the inside channel sound signal (S) with the weight factor (ω).

IPC 8 full level

G10L 21/0208 (2013.01); H04R 3/00 (2006.01); H04R 25/00 (2006.01)

CPC (source: EP)

G10L 21/0232 (2013.01); H04R 25/407 (2013.01); H04R 25/405 (2013.01); H04R 2225/021 (2013.01); H04R 2225/025 (2013.01); H04R 2225/43 (2013.01); H04R 2410/01 (2013.01); H04R 2430/20 (2013.01)

Citation (applicant)

US 2010329492 A1 20101230 - DERLETH RALPH PETER [CH], et al

Citation (search report)

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

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3503581 A1 20190626; EP 3503581 B1 20220316; DK 3503581 T3 20220509

DOCDB simple family (application)

EP 17209252 A 20171221; DK 17209252 T 20171221