EP2190218A3 - Filterbanksystem mit spezifischen Sperrdämpfungsanteilen für eine Hörvorrichtung - Google Patents

Filterbanksystem mit spezifischen Sperrdämpfungsanteilen für eine Hörvorrichtung Download PDF

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Publication number
EP2190218A3
EP2190218A3 EP09175081A EP09175081A EP2190218A3 EP 2190218 A3 EP2190218 A3 EP 2190218A3 EP 09175081 A EP09175081 A EP 09175081A EP 09175081 A EP09175081 A EP 09175081A EP 2190218 A3 EP2190218 A3 EP 2190218A3
Authority
EP
European Patent Office
Prior art keywords
filter bank
attenuation
synthesis
frequency
analysis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09175081A
Other languages
English (en)
French (fr)
Other versions
EP2190218B1 (de
EP2190218A2 (de
Inventor
Daniel Alfsmann
Heinz Goeckler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sivantos Pte Ltd
Original Assignee
Siemens Medical Instruments Pte Ltd
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Filing date
Publication date
Application filed by Siemens Medical Instruments Pte Ltd filed Critical Siemens Medical Instruments Pte Ltd
Publication of EP2190218A2 publication Critical patent/EP2190218A2/de
Publication of EP2190218A3 publication Critical patent/EP2190218A3/de
Application granted granted Critical
Publication of EP2190218B1 publication Critical patent/EP2190218B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/03—Synergistic effects of band splitting and sub-band processing

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Networks Using Active Elements (AREA)
  • Filters That Use Time-Delay Elements (AREA)

Abstract

Der Schaltungsaufwand bzw. die Filterordnung eines Analyse-Synthese-Filterbanksystems insbesondere für Hörhilfen soll reduziert werden. Daher wird die Sperrdämpfung mindestens einer der Übertragungsfunktionen der Analysefilterbank aus einem separat konfigurierbaren, frequenzunabhängigen Analyse-Grunddämpfungsanteil und einem separat konfigurierbaren, frequenzabhängigen Analyse-Dämpfungsanteil (10, 11) zusammengesetzt. Weiterhin wird die Sperrdämpfung mindestens einer der Übertragungsfunktionen der Synthesefilterbank aus einem separat konfigurierbaren, frequenzunabhängigen Synthese-Grunddämpfungsanteil, einem separat konfigurierbaren, frequenzabhängigen, ersten Synthese-Dämpfungsanteil und einem separat konfigurierbaren, frequenzabhängigen und von dem Manipulieren der Teilbandsignale abhängigen, zweiten Synthese-Dämpfungsanteil zusammengesetzt. Dadurch lässt sich die Sperrdämpfung (12) frequenzabhängig verkleinern und die Filterordnung entsprechend reduzieren.
EP09175081.0A 2008-11-21 2009-11-05 Filterbanksystem mit spezifischen Sperrdämpfungsanteilen für eine Hörvorrichtung Active EP2190218B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008058496A DE102008058496B4 (de) 2008-11-21 2008-11-21 Filterbanksystem mit spezifischen Sperrdämpfungsanteilen für eine Hörvorrichtung

Publications (3)

Publication Number Publication Date
EP2190218A2 EP2190218A2 (de) 2010-05-26
EP2190218A3 true EP2190218A3 (de) 2012-08-29
EP2190218B1 EP2190218B1 (de) 2014-06-04

Family

ID=41697832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09175081.0A Active EP2190218B1 (de) 2008-11-21 2009-11-05 Filterbanksystem mit spezifischen Sperrdämpfungsanteilen für eine Hörvorrichtung

Country Status (4)

Country Link
US (1) US8295518B2 (de)
EP (1) EP2190218B1 (de)
DE (1) DE102008058496B4 (de)
DK (1) DK2190218T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7349484B2 (en) * 2004-12-22 2008-03-25 Rambus Inc. Adjustable dual-band link
US8958510B1 (en) * 2010-06-10 2015-02-17 Fredric J. Harris Selectable bandwidth filter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060056641A1 (en) * 2004-09-15 2006-03-16 Nadjar Hamid S Method and system for physiological signal processing
DE69833749T2 (de) * 1997-04-16 2006-08-17 Emma Mixed Signal C.V. Filterbankanordnung und verfahren zur filterung und trennung eines informationssignals in unterschiedlichen frequenzbändern, insbesondere für audiosignale in hörhilfegeräten

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5278912A (en) * 1991-06-28 1994-01-11 Resound Corporation Multiband programmable compression system
US6236731B1 (en) * 1997-04-16 2001-05-22 Dspfactory Ltd. Filterbank structure and method for filtering and separating an information signal into different bands, particularly for audio signal in hearing aids
SE0202770D0 (sv) * 2002-09-18 2002-09-18 Coding Technologies Sweden Ab Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks
DK1721488T3 (da) * 2004-03-03 2009-03-02 Widex As Höreapparat med adaptivt tilbagekoblingsundertrykkelsessystem
US8260611B2 (en) * 2005-04-01 2012-09-04 Qualcomm Incorporated Systems, methods, and apparatus for highband excitation generation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69833749T2 (de) * 1997-04-16 2006-08-17 Emma Mixed Signal C.V. Filterbankanordnung und verfahren zur filterung und trennung eines informationssignals in unterschiedlichen frequenzbändern, insbesondere für audiosignale in hörhilfegeräten
US20060056641A1 (en) * 2004-09-15 2006-03-16 Nadjar Hamid S Method and system for physiological signal processing

Also Published As

Publication number Publication date
EP2190218B1 (de) 2014-06-04
DK2190218T3 (da) 2014-09-15
US20100128910A1 (en) 2010-05-27
DE102008058496B4 (de) 2010-09-09
US8295518B2 (en) 2012-10-23
EP2190218A2 (de) 2010-05-26
DE102008058496A1 (de) 2010-05-27

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