DE60308342D1 - Verfahren und Vorrichtung zur Sprachaktivitätsdetektion - Google Patents

Verfahren und Vorrichtung zur Sprachaktivitätsdetektion

Info

Publication number
DE60308342D1
DE60308342D1 DE60308342T DE60308342T DE60308342D1 DE 60308342 D1 DE60308342 D1 DE 60308342D1 DE 60308342 T DE60308342 T DE 60308342T DE 60308342 T DE60308342 T DE 60308342T DE 60308342 D1 DE60308342 D1 DE 60308342D1
Authority
DE
Germany
Prior art keywords
microphone system
activity detection
voice activity
sound signal
emanating
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.)
Expired - Lifetime
Application number
DE60308342T
Other languages
English (en)
Other versions
DE60308342T2 (de
Inventor
Stefan Gustavsson
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.)
Sony Mobile Communications AB
Original Assignee
Sony Ericsson Mobile Communications AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Ericsson Mobile Communications AB filed Critical Sony Ericsson Mobile Communications AB
Application granted granted Critical
Publication of DE60308342D1 publication Critical patent/DE60308342D1/de
Publication of DE60308342T2 publication Critical patent/DE60308342T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02165—Two microphones, one receiving mainly the noise signal and the other one mainly the speech signal
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02166—Microphone arrays; Beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/401—2D or 3D arrays 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
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
DE60308342T 2003-06-17 2003-06-17 Verfahren und Vorrichtung zur Sprachaktivitätsdetektion Expired - Lifetime DE60308342T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03445076A EP1489596B1 (de) 2003-06-17 2003-06-17 Verfahren und Vorrichtung zur Sprachaktivitätsdetektion

Publications (2)

Publication Number Publication Date
DE60308342D1 true DE60308342D1 (de) 2006-10-26
DE60308342T2 DE60308342T2 (de) 2007-09-06

Family

ID=33396142

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60308342T Expired - Lifetime DE60308342T2 (de) 2003-06-17 2003-06-17 Verfahren und Vorrichtung zur Sprachaktivitätsdetektion

Country Status (6)

Country Link
US (1) US7966178B2 (de)
EP (1) EP1489596B1 (de)
CN (1) CN100559461C (de)
AT (1) ATE339757T1 (de)
DE (1) DE60308342T2 (de)
WO (1) WO2004111995A1 (de)

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Also Published As

Publication number Publication date
CN1813284A (zh) 2006-08-02
DE60308342T2 (de) 2007-09-06
EP1489596B1 (de) 2006-09-13
US7966178B2 (en) 2011-06-21
EP1489596A1 (de) 2004-12-22
ATE339757T1 (de) 2006-10-15
US20080091421A1 (en) 2008-04-17
WO2004111995A1 (en) 2004-12-23
CN100559461C (zh) 2009-11-11

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Representative=s name: PATENT- UND RECHTSANWAELTE KRAUS & WEISERT, 80539