EP1655998A3 - Method for generating stereo signals for spaced sources and corresponding acoustic system - Google Patents

Method for generating stereo signals for spaced sources and corresponding acoustic system Download PDF

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Publication number
EP1655998A3
EP1655998A3 EP05110440A EP05110440A EP1655998A3 EP 1655998 A3 EP1655998 A3 EP 1655998A3 EP 05110440 A EP05110440 A EP 05110440A EP 05110440 A EP05110440 A EP 05110440A EP 1655998 A3 EP1655998 A3 EP 1655998A3
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EP
European Patent Office
Prior art keywords
signals
acoustic system
microphone
stereo signals
corresponding acoustic
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Granted
Application number
EP05110440A
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German (de)
French (fr)
Other versions
EP1655998B1 (en
EP1655998A2 (en
Inventor
Henning Dr. Puder
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Sivantos GmbH
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Siemens Audioligische Technik GmbH
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Publication of EP1655998A2 publication Critical patent/EP1655998A2/en
Publication of EP1655998A3 publication Critical patent/EP1655998A3/en
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Publication of EP1655998B1 publication Critical patent/EP1655998B1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • 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
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems

Abstract

Bei der Quellentrennung durch ein Akustiksystem soll für jede der getrennten Quellen ein Stereosignal zur Verfügung gestellt werden. Dazu ist vorgesehen, eine Blinde Quellentrennung von mindestens zwei Mikrofonsignalen (x1(k), x2(k)) zur Gewinnung von BSS-Filtern (W 11 (Ω), W 12 (Ω), W 21 (Ω), W 22 (Ω)) auszuführen. Jedes der Mikrofonsignale (x1(k), x2(k)) wird jeweils mit einem eigenen Filter (G1 1 (Ω), G 12 (Ω), G 21 (Ω), G 22 (Ω)), dessen Übertragungsfunktion der Quotient aus einem Leistungsdichtespektralanteil der jeweiligen Schallquelle und dem Gesamtleistungsdichtespektrum des jeweiligen Mikrofonsignals ist, gefiltert, so dass für jedes Mikrofonsignal (x1(k) x2(k)) zwei Stereosignale (z1links(k), z1rechts(k), z2links, z2rechts(k)) gewonnen werden. Damit ist eine Schätzung der zu trennenden Signale beispielsweise für jedes Hörgerät einzeln möglich.

Figure imgaf001
In the source separation by an acoustic system, a stereo signal is to be made available for each of the separate sources. For this purpose, provision is made for a blind source separation of at least two microphone signals (x1 (k), x2 (k)) for obtaining BSS filters (W 11 ( Ω ), W 12 (Ω), W 21 (Ω), W 22 ( FIG. Ω)) . Each of the microphone signals ( x1 (k), x2 (k) ) is each assigned its own filter ( G1 1 (Ω), G 12 (Ω), G 21 (Ω), G 22 (Ω) ), whose transfer function is the quotient is filtered from a power density spectral component of the respective sound source and the total power density spectrum of the respective microphone signal, so that for each microphone signal ( x1 (k) x2 (k) ) two stereo signals ( z1links (k), z1right (k), z2links, z2right (k) ) be won. For an estimate of the signals to be separated, for example, for each hearing aid individually possible.
Figure imgaf001
EP05110440.4A 2004-11-08 2005-11-08 Method for generating stereo signals for spaced sources and corresponding acoustic system Not-in-force EP1655998B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004053790A DE102004053790A1 (en) 2004-11-08 2004-11-08 Method for generating stereo signals for separate sources and corresponding acoustic system

Publications (3)

Publication Number Publication Date
EP1655998A2 EP1655998A2 (en) 2006-05-10
EP1655998A3 true EP1655998A3 (en) 2006-10-11
EP1655998B1 EP1655998B1 (en) 2014-10-15

Family

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EP05110440.4A Not-in-force EP1655998B1 (en) 2004-11-08 2005-11-08 Method for generating stereo signals for spaced sources and corresponding acoustic system

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US (1) US7831052B2 (en)
EP (1) EP1655998B1 (en)
DE (1) DE102004053790A1 (en)
DK (1) DK1655998T3 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2080410A1 (en) 2006-10-10 2009-07-22 Siemens Audiologische Technik GmbH Method for operating a hearing aid, and hearing aid
DE102006047986B4 (en) * 2006-10-10 2012-06-14 Siemens Audiologische Technik Gmbh Processing an input signal in a hearing aid
EP2077059B1 (en) 2006-10-10 2017-08-16 Sivantos GmbH Method for operating a hearing aid, and hearing aid
DE102006047983A1 (en) * 2006-10-10 2008-04-24 Siemens Audiologische Technik Gmbh Processing an input signal in a hearing aid
DE102006047982A1 (en) * 2006-10-10 2008-04-24 Siemens Audiologische Technik Gmbh Method for operating a hearing aid, and hearing aid
EP1912472A1 (en) * 2006-10-10 2008-04-16 Siemens Audiologische Technik GmbH Method for operating a hearing aid and hearing aid
DE102007008738A1 (en) * 2007-02-22 2008-08-28 Siemens Audiologische Technik Gmbh Method for improving spatial perception and corresponding hearing device
DE102007010601A1 (en) 2007-03-05 2008-09-25 Siemens Audiologische Technik Gmbh Hearing system with distributed signal processing and corresponding method
DE102007033877B3 (en) 2007-07-20 2009-02-05 Siemens Audiologische Technik Gmbh Method for signal processing in a hearing aid
US9031242B2 (en) 2007-11-06 2015-05-12 Starkey Laboratories, Inc. Simulated surround sound hearing aid fitting system
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
US8705751B2 (en) 2008-06-02 2014-04-22 Starkey Laboratories, Inc. Compression and mixing for hearing assistance devices
WO2010004473A1 (en) * 2008-07-07 2010-01-14 Koninklijke Philips Electronics N.V. Audio enhancement
DK2211563T3 (en) * 2009-01-21 2011-12-19 Siemens Medical Instr Pte Ltd Blind source separation method and apparatus for improving interference estimation by binaural Weiner filtration
DK2234415T3 (en) * 2009-03-24 2012-02-13 Siemens Medical Instr Pte Ltd Method and acoustic signal processing system for binaural noise reduction
DE102013207149A1 (en) * 2013-04-19 2014-11-06 Siemens Medical Instruments Pte. Ltd. Controlling the effect size of a binaural directional microphone
DK3588979T3 (en) * 2018-06-22 2020-12-14 Sivantos Pte Ltd PROCEDURE FOR STRENGTHENING A SIGNAL DIRECTION IN A HEARING AID
CN110675892B (en) * 2019-09-24 2022-04-05 北京地平线机器人技术研发有限公司 Multi-position voice separation method and device, storage medium and electronic equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1326478A2 (en) * 2003-03-07 2003-07-09 Phonak Ag Method for producing control signals, method of controlling signal transfer and a hearing device
US6704369B1 (en) * 1999-08-16 2004-03-09 Matsushita Electric Industrial Co., Ltd. Apparatus and method for signal separation and recording medium for the same
EP1509065A1 (en) * 2003-08-21 2005-02-23 Bernafon Ag Method for processing audio-signals

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Publication number Priority date Publication date Assignee Title
FR2759824A1 (en) 1997-02-18 1998-08-21 Philips Electronics Nv SYSTEM FOR SEPARATING NON-STATIONARY SOURCES
US6526148B1 (en) * 1999-05-18 2003-02-25 Siemens Corporate Research, Inc. Device and method for demixing signal mixtures using fast blind source separation technique based on delay and attenuation compensation, and for selecting channels for the demixed signals

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6704369B1 (en) * 1999-08-16 2004-03-09 Matsushita Electric Industrial Co., Ltd. Apparatus and method for signal separation and recording medium for the same
EP1326478A2 (en) * 2003-03-07 2003-07-09 Phonak Ag Method for producing control signals, method of controlling signal transfer and a hearing device
EP1509065A1 (en) * 2003-08-21 2005-02-23 Bernafon Ag Method for processing audio-signals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WITTKOP T ET AL: "Strategy-selective noise reduction for binaural digital hearing aids", SPEECH COMMUNICATION, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 39, January 2003 (2003-01-01), pages 111 - 138, XP002266432, ISSN: 0167-6393 *

Also Published As

Publication number Publication date
DE102004053790A1 (en) 2006-05-18
US7831052B2 (en) 2010-11-09
EP1655998B1 (en) 2014-10-15
DK1655998T3 (en) 2015-01-19
US20060120535A1 (en) 2006-06-08
EP1655998A2 (en) 2006-05-10

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