EP 2124482 B1 20171206 - Hearing device with equalisation filter in a filterbank system
Title (en)
Hearing device with equalisation filter in a filterbank system
Title (de)
Hörvorrichtung mit einem Entzerrungsfilter im Filterbank-System
Title (fr)
Dispositif auditif avec filtre égaliseur dans un système de banc de filtres
Publication
Application
Priority
DE 102008024534 A 20080521
Abstract (en)
[origin: EP2124482A2] The device has a filter bank system with a multi-layer analysis filter bank (AFB) and a multi-stage synthesis filter bank (SFB) to separate an input signal of the hearing apparatus into multiple sub-band signals by a set of filter bank channels and/or to again merge the sub-band signals. The filter bank system has an equalization filter (EQ) to compensate differences of complex frequency responses between the filter bank channels. The equalization filter compensates damping or amplification differences and group delay differences between the filter bank channels.
IPC 8 full level
H04R 25/00 (2006.01)
CPC (source: EP US)
H04R 25/505 (2013.01 - EP US); H04R 25/407 (2013.01 - EP US); H04R 2430/03 (2013.01 - EP US)
Citation (examination)
US 5995539 A 19991130 - MILLER WILLIAM J [US]
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 TR
DOCDB simple family (publication)
EP 2124482 A2 20091125; EP 2124482 A3 20140625; EP 2124482 B1 20171206; DE 102008024534 A1 20091203; DK 2124482 T3 20180305; US 2009290734 A1 20091126; US 8908893 B2 20141209
DOCDB simple family (application)
EP 09159399 A 20090505; DE 102008024534 A 20080521; DK 09159399 T 20090505; US 46901409 A 20090520