DK2615855T3 - Binauralt system til signalforbedring - Google Patents
Binauralt system til signalforbedring Download PDFInfo
- Publication number
- DK2615855T3 DK2615855T3 DK13162846.3T DK13162846T DK2615855T3 DK 2615855 T3 DK2615855 T3 DK 2615855T3 DK 13162846 T DK13162846 T DK 13162846T DK 2615855 T3 DK2615855 T3 DK 2615855T3
- Authority
- DK
- Denmark
- Prior art keywords
- filter
- signal
- processing system
- channel
- input signal
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/40—Arrangements for obtaining a desired directivity characteristic
- H04R25/407—Circuits for combining signals of a plurality of transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
- H04R25/552—Binaural
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
- H04R2225/41—Detection or adaptation of hearing aid parameters or programs to listening situation, e.g. pub, forest
Landscapes
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Stereophonic System (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Circuit For Audible Band Transducer (AREA)
- Noise Elimination (AREA)
Claims (9)
1. Et signalbehandlingssystem (200), der omfatter et første filter (201), der har en første filteroverføringsfunktion, og et andet filter (203), der har en anden filteroverføringsfunktion, og hvor det første filter (201) har en adaptiv første filtertidskonstant til at modtage et første kanalindgangssignal Xi_(k) og generere et første kanaludgangssignal Yi_(k), og det andet filter (203) har en adaptiv anden filtertidskonstant til at modtage et andet kanalindgangssignal XR(k) og generere et andet kanaludgangssignal YR(k), og hvor den første og den anden adaptive filtertidskonstant er en midiende tidskonstant og er en funktion af et estimeret forhold mellem støj og signal-plus-støj for henholdsvis det første kanalindgangssignal Xi_(k) og det andet kanalindgangssignal XrKk), og hvor den første og den anden filtertidskonstant adapteres for at reducere artefakter for signalbehandlingssystemet(200) ved at anvende længere midiende tidskonstanter i takt med, at signal-støj-forholdet for det første kanalindgangssignal Xi_(k) og det andet kanalindgangssignal Xp>(k) falder.
2. Et signalbehandlingssystem (200) ifølge krav 1, hvor den første og den anden adaptive filtertidskonstant er respektivt en funktion af et estimeret forhold mellem støj og signal-plus-støj.
3. Et signalbehandlingssystem (200) ifølge krav 1 eller 2, hvor signalbehandlingssystemet er et flerkanalssignalbehandlingssystem.
4. Et signalbehandlingssystem (200) ifølge et hvilket som helst af de foregående krav, hvor det første og det andet filter er et lavpasfilter.
5. Et signalbehandlingssystem (200) ifølge et hvilket som helst af de foregående krav, hvor den første og den anden filteroverføringsfunktion er identiske.
6. Et signalbehandlingssystem (200) ifølge et hvilket som helst af de foregående krav, hvor den første og den anden adaptive filterkonstant τ defineres som
p < 0.3 0.3 < p < 0.6 p > 0.6 hvor et SNR indeks p defineres som
er et signalspektrum for det frekvensbin, der har et indeks k, og N(k) er et støjspektrum for det frekvensbin, der har indekset k.
7. En fremgangsmåde til signalbehandling i et audiosystem, hvilken fremgangsmåde omfatter, at modtage et første indgangssignal Xi_(k) med et første filter (201), der er anbragt i en første signalkanal og har en første filteroverføringsfunktion, modtage et andet indgangssignal Xp:(k) med et andet filter (203), der er anbragt i en anden signalkanal og har en anden filteroverføringsfunktion, og generere et første kanaludgangssignal Yi_(k) og et andet kanaludgangssignal YR(k) ved adaptivt at justere en første tidskonstant for det første filter (201) og en anden tidskonstant for det andet filter (203), hvor den første adaptive tidskonstant for det første filter og den anden adaptive tidskonstant for det andet filter er midiende tidskonstanter og er funktioner af et estimeret forhold mellem støj og signal-plus-støj for henholdsvis det første kanalindgangssignal Xi_(k) og det andet kanalindgangssignal XR(k), og hvor den første adaptive tidskonstant for det første filter og den anden adaptive tidskonstant for det andet filter adapteres for at reducere artefakter for signalbehandlingssystemet(200) ved at anvende længere midiende tidskonstanter i takt med, at signal-støj-forholdet for det første kanalindgangssignal og det andet kanalindgangssignal falder.
8. Fremgangsmåden ifølge krav 7, hvor det første og det andet filter (201, 203) er et lavpasfilter.
9. Fremgangsmåden ifølge krav 7 eller 8, hvor den første og den anden tidskonstant τ defineres identisk ved:
hvor et SNR indeks p defineres som p < 0.3 0.3 < p < 0.6 p > 0.6
er et signalspektrum for det frekvensbin, der hare et indeks k, og N(k) er et støjspektrum for det frekvensbin, der har indekset k.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/407,305 US7330556B2 (en) | 2003-04-03 | 2003-04-03 | Binaural signal enhancement system |
EP04075995.3A EP1465456B1 (en) | 2003-04-03 | 2004-04-02 | Binaural signal enhancement system |
Publications (1)
Publication Number | Publication Date |
---|---|
DK2615855T3 true DK2615855T3 (da) | 2017-02-06 |
Family
ID=32850664
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK04075995.3T DK1465456T3 (da) | 2003-04-03 | 2004-04-02 | Binauralt system til signalforbedring |
DK13162846.3T DK2615855T3 (da) | 2003-04-03 | 2004-04-02 | Binauralt system til signalforbedring |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK04075995.3T DK1465456T3 (da) | 2003-04-03 | 2004-04-02 | Binauralt system til signalforbedring |
Country Status (4)
Country | Link |
---|---|
US (2) | US7330556B2 (da) |
EP (2) | EP1465456B1 (da) |
JP (1) | JP4732706B2 (da) |
DK (2) | DK1465456T3 (da) |
Families Citing this family (48)
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US7330556B2 (en) | 2003-04-03 | 2008-02-12 | Gn Resound A/S | Binaural signal enhancement system |
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US20060227976A1 (en) * | 2005-04-07 | 2006-10-12 | Gennum Corporation | Binaural hearing instrument systems and methods |
DE102005020316B3 (de) * | 2005-05-02 | 2006-10-19 | Siemens Audiologische Technik Gmbh | Hörgerätsystem mit Monosignalerzeugung und entsprechendes Verfahren |
WO2007028250A2 (en) * | 2005-09-09 | 2007-03-15 | Mcmaster University | Method and device for binaural signal enhancement |
US7742624B2 (en) * | 2006-04-25 | 2010-06-22 | Motorola, Inc. | Perspective improvement for image and video applications |
GB0609248D0 (en) * | 2006-05-10 | 2006-06-21 | Leuven K U Res & Dev | Binaural noise reduction preserving interaural transfer functions |
US8483416B2 (en) | 2006-07-12 | 2013-07-09 | Phonak Ag | Methods for manufacturing audible signals |
WO2008106680A2 (en) * | 2007-03-01 | 2008-09-04 | Jerry Mahabub | Audio spatialization and environment simulation |
US8520873B2 (en) * | 2008-10-20 | 2013-08-27 | Jerry Mahabub | Audio spatialization and environment simulation |
DK1981309T3 (da) | 2007-04-11 | 2012-04-23 | Oticon As | Høreapparat med flerkanalskompression |
US8892432B2 (en) * | 2007-10-19 | 2014-11-18 | Nec Corporation | Signal processing system, apparatus and method used on the system, and program thereof |
US9031242B2 (en) * | 2007-11-06 | 2015-05-12 | Starkey Laboratories, Inc. | Simulated surround sound hearing aid fitting system |
KR101449433B1 (ko) * | 2007-11-30 | 2014-10-13 | 삼성전자주식회사 | 마이크로폰을 통해 입력된 사운드 신호로부터 잡음을제거하는 방법 및 장치 |
JP5627241B2 (ja) * | 2008-01-21 | 2014-11-19 | パナソニック株式会社 | 音声信号処理装置および方法 |
EP2238592B1 (en) | 2008-02-05 | 2012-03-28 | Phonak AG | Method for reducing noise in an input signal of a hearing device as well as a hearing device |
US20090281803A1 (en) * | 2008-05-12 | 2009-11-12 | Broadcom Corporation | Dispersion filtering for speech intelligibility enhancement |
US9197181B2 (en) * | 2008-05-12 | 2015-11-24 | Broadcom Corporation | Loudness enhancement system and method |
US8831936B2 (en) * | 2008-05-29 | 2014-09-09 | Qualcomm Incorporated | Systems, methods, apparatus, and computer program products for speech signal processing using spectral contrast enhancement |
US8705751B2 (en) * | 2008-06-02 | 2014-04-22 | Starkey Laboratories, Inc. | Compression and mixing for hearing assistance devices |
US9185500B2 (en) | 2008-06-02 | 2015-11-10 | Starkey Laboratories, Inc. | Compression of spaced sources for hearing assistance devices |
US9485589B2 (en) | 2008-06-02 | 2016-11-01 | Starkey Laboratories, Inc. | Enhanced dynamics processing of streaming audio by source separation and remixing |
WO2009156906A1 (en) * | 2008-06-25 | 2009-12-30 | Koninklijke Philips Electronics N.V. | Audio processing |
US8538749B2 (en) * | 2008-07-18 | 2013-09-17 | Qualcomm Incorporated | Systems, methods, apparatus, and computer program products for enhanced intelligibility |
US9820071B2 (en) | 2008-08-31 | 2017-11-14 | Blamey & Saunders Hearing Pty Ltd. | System and method for binaural noise reduction in a sound processing device |
US9202456B2 (en) | 2009-04-23 | 2015-12-01 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for automatic control of active noise cancellation |
ES2405990T3 (es) | 2009-10-21 | 2013-06-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Reverberador y método para reverberar una señal de audio |
TWI396190B (zh) * | 2009-11-03 | 2013-05-11 | Ind Tech Res Inst | 降噪系統及降噪方法 |
DK2537351T3 (da) | 2010-02-19 | 2020-12-07 | Sivantos Pte Ltd | Fremgangsmåde til den binaurale laterale opfattelse for høreinstrumenter |
EP2541971B1 (en) * | 2010-02-24 | 2020-08-12 | Panasonic Intellectual Property Management Co., Ltd. | Sound processing device and sound processing method |
US20120328112A1 (en) * | 2010-03-10 | 2012-12-27 | Siemens Medical Instruments Pte. Ltd. | Reverberation reduction for signals in a binaural hearing apparatus |
US9053697B2 (en) | 2010-06-01 | 2015-06-09 | Qualcomm Incorporated | Systems, methods, devices, apparatus, and computer program products for audio equalization |
KR101420960B1 (ko) | 2010-07-15 | 2014-07-18 | 비덱스 에이/에스 | 보청기 시스템에서의 신호 처리 방법 및 보청기 시스템 |
JP5728215B2 (ja) * | 2010-12-13 | 2015-06-03 | キヤノン株式会社 | 音声処理装置及び方法並びに撮像装置 |
US9253566B1 (en) | 2011-02-10 | 2016-02-02 | Dolby Laboratories Licensing Corporation | Vector noise cancellation |
US9100735B1 (en) | 2011-02-10 | 2015-08-04 | Dolby Laboratories Licensing Corporation | Vector noise cancellation |
US9635474B2 (en) | 2011-05-23 | 2017-04-25 | Sonova Ag | Method of processing a signal in a hearing instrument, and hearing instrument |
WO2013159809A1 (en) * | 2012-04-24 | 2013-10-31 | Phonak Ag | Method of controlling a hearing instrument |
US9407999B2 (en) | 2013-02-04 | 2016-08-02 | University of Pittsburgh—of the Commonwealth System of Higher Education | System and method for enhancing the binaural representation for hearing-impaired subjects |
DE102013207161B4 (de) * | 2013-04-19 | 2019-03-21 | Sivantos Pte. Ltd. | Verfahren zur Nutzsignalanpassung in binauralen Hörhilfesystemen |
DE102013209062A1 (de) | 2013-05-16 | 2014-11-20 | Siemens Medical Instruments Pte. Ltd. | Logik-basiertes binaurales Beam-Formungssystem |
DK3008924T3 (da) | 2013-06-14 | 2018-10-01 | Widex As | Fremgangsmåde til signalbehandling i et høreapparatsystem og et høreapparatsystem |
KR101610881B1 (ko) * | 2014-04-10 | 2016-04-08 | 주식회사 비에스엘 | 보청기 보정장치 및 그 제어방법 |
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DE102015211747B4 (de) * | 2015-06-24 | 2017-05-18 | Sivantos Pte. Ltd. | Verfahren zur Signalverarbeitung in einem binauralen Hörgerät |
DK3252764T3 (da) * | 2016-06-03 | 2021-04-26 | Sivantos Pte Ltd | Fremgangsmåde til drift af et binauralt høresystem |
US10425745B1 (en) * | 2018-05-17 | 2019-09-24 | Starkey Laboratories, Inc. | Adaptive binaural beamforming with preservation of spatial cues in hearing assistance devices |
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JP2999596B2 (ja) * | 1991-07-10 | 2000-01-17 | 新日本無線株式会社 | 補聴器 |
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US6430295B1 (en) * | 1997-07-11 | 2002-08-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatus for measuring signal level and delay at multiple sensors |
ATE383730T1 (de) * | 1998-02-18 | 2008-01-15 | Widex As | Binaurales digitales hörhilfesystem |
DE19822021C2 (de) * | 1998-05-15 | 2000-12-14 | Siemens Audiologische Technik | Hörgerät mit automatischem Mikrofonabgleich sowie Verfahren zum Betrieb eines Hörgerätes mit automatischem Mikrofonabgleich |
WO2001097558A2 (en) * | 2000-06-13 | 2001-12-20 | Gn Resound Corporation | Fixed polar-pattern-based adaptive directionality systems |
US7027607B2 (en) * | 2000-09-22 | 2006-04-11 | Gn Resound A/S | Hearing aid with adaptive microphone matching |
US7330556B2 (en) | 2003-04-03 | 2008-02-12 | Gn Resound A/S | Binaural signal enhancement system |
-
2003
- 2003-04-03 US US10/407,305 patent/US7330556B2/en not_active Expired - Fee Related
-
2004
- 2004-04-02 DK DK04075995.3T patent/DK1465456T3/da active
- 2004-04-02 EP EP04075995.3A patent/EP1465456B1/en not_active Expired - Lifetime
- 2004-04-02 EP EP13162846.3A patent/EP2615855B1/en not_active Expired - Lifetime
- 2004-04-02 DK DK13162846.3T patent/DK2615855T3/da active
- 2004-04-05 JP JP2004137912A patent/JP4732706B2/ja not_active Expired - Lifetime
-
2008
- 2008-02-11 US US12/029,292 patent/US8036404B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20080212811A1 (en) | 2008-09-04 |
DK1465456T3 (da) | 2016-08-01 |
EP2615855B1 (en) | 2016-11-09 |
EP1465456A2 (en) | 2004-10-06 |
US7330556B2 (en) | 2008-02-12 |
EP1465456A3 (en) | 2010-01-27 |
US20040196994A1 (en) | 2004-10-07 |
JP2004312754A (ja) | 2004-11-04 |
EP1465456B1 (en) | 2016-05-18 |
EP2615855A1 (en) | 2013-07-17 |
US8036404B2 (en) | 2011-10-11 |
JP4732706B2 (ja) | 2011-07-27 |
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