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
Application
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
H04R 3/00 (2006.01); G10L 21/0208 (2013.01); 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)
- [Y] US 2008260175 A1 20081023 - ELKO GARY W [US]
- [Y] US 2010046775 A1 20100225 - TIEFENAU ANDREAS [DE]
- [Y] EP 2088802 A1 20090812 - OTICON AS [DK]
- [A] EP 2849462 A1 20150318 - OTICON AS [DK]
- [A] EP 2806660 A1 20141126 - GN RESOUND AS [DK]
- [A] JP 2003044087 A 20030214 - MATSUSHITA ELECTRIC IND CO LTD
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