DE3750314T2 - Sprachprozessor. - Google Patents

Sprachprozessor.

Info

Publication number
DE3750314T2
DE3750314T2 DE3750314T DE3750314T DE3750314T2 DE 3750314 T2 DE3750314 T2 DE 3750314T2 DE 3750314 T DE3750314 T DE 3750314T DE 3750314 T DE3750314 T DE 3750314T DE 3750314 T2 DE3750314 T2 DE 3750314T2
Authority
DE
Germany
Prior art keywords
speech
template
background noise
word
stored
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 - Fee Related
Application number
DE3750314T
Other languages
English (en)
Other versions
DE3750314D1 (de
Inventor
Nicholas John Arnold Forse
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Application granted granted Critical
Publication of DE3750314D1 publication Critical patent/DE3750314D1/de
Publication of DE3750314T2 publication Critical patent/DE3750314T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/28—Constructional details of speech recognition systems
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/20—Speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise, of stress induced speech
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • 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
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • 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
    • G10L2021/02168—Noise filtering characterised by the method used for estimating noise the estimation exclusively taking place during speech pauses
    • 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
DE3750314T 1986-06-02 1987-05-29 Sprachprozessor. Expired - Fee Related DE3750314T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868613327A GB8613327D0 (en) 1986-06-02 1986-06-02 Speech processor

Publications (2)

Publication Number Publication Date
DE3750314D1 DE3750314D1 (de) 1994-09-08
DE3750314T2 true DE3750314T2 (de) 1994-11-17

Family

ID=10598774

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3752288T Expired - Fee Related DE3752288T2 (de) 1986-06-02 1987-05-29 Sprachprozessor
DE3750314T Expired - Fee Related DE3750314T2 (de) 1986-06-02 1987-05-29 Sprachprozessor.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3752288T Expired - Fee Related DE3752288T2 (de) 1986-06-02 1987-05-29 Sprachprozessor

Country Status (13)

Country Link
US (1) US4912766A (de)
EP (2) EP0248609B1 (de)
JP (3) JP2561850B2 (de)
KR (1) KR950011963B1 (de)
AT (2) ATE109582T1 (de)
CA (1) CA1310418C (de)
DE (2) DE3752288T2 (de)
DK (1) DK171426B1 (de)
ES (1) ES2056819T3 (de)
FI (1) FI92113C (de)
GB (1) GB8613327D0 (de)
HK (1) HK137096A (de)
WO (1) WO1987007750A1 (de)

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US7155385B2 (en) 2002-05-16 2006-12-26 Comerica Bank, As Administrative Agent Automatic gain control for adjusting gain during non-speech portions
KR100841096B1 (ko) * 2002-10-14 2008-06-25 리얼네트웍스아시아퍼시픽 주식회사 음성 코덱에 대한 디지털 오디오 신호의 전처리 방법
US8271279B2 (en) 2003-02-21 2012-09-18 Qnx Software Systems Limited Signature noise removal
US7885420B2 (en) 2003-02-21 2011-02-08 Qnx Software Systems Co. Wind noise suppression system
US7949522B2 (en) 2003-02-21 2011-05-24 Qnx Software Systems Co. System for suppressing rain noise
US8326621B2 (en) 2003-02-21 2012-12-04 Qnx Software Systems Limited Repetitive transient noise removal
US7725315B2 (en) 2003-02-21 2010-05-25 Qnx Software Systems (Wavemakers), Inc. Minimization of transient noises in a voice signal
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US7895036B2 (en) 2003-02-21 2011-02-22 Qnx Software Systems Co. System for suppressing wind noise
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US7680652B2 (en) 2004-10-26 2010-03-16 Qnx Software Systems (Wavemakers), Inc. Periodic signal enhancement system
US8170879B2 (en) 2004-10-26 2012-05-01 Qnx Software Systems Limited Periodic signal enhancement system
US8543390B2 (en) 2004-10-26 2013-09-24 Qnx Software Systems Limited Multi-channel periodic signal enhancement system
US7949520B2 (en) 2004-10-26 2011-05-24 QNX Software Sytems Co. Adaptive filter pitch extraction
US8306821B2 (en) 2004-10-26 2012-11-06 Qnx Software Systems Limited Sub-band periodic signal enhancement system
US7716046B2 (en) 2004-10-26 2010-05-11 Qnx Software Systems (Wavemakers), Inc. Advanced periodic signal enhancement
US8284947B2 (en) 2004-12-01 2012-10-09 Qnx Software Systems Limited Reverberation estimation and suppression system
US20060146652A1 (en) * 2005-01-03 2006-07-06 Sdi Technologies, Inc. Sunset timer
US8027833B2 (en) 2005-05-09 2011-09-27 Qnx Software Systems Co. System for suppressing passing tire hiss
US8311819B2 (en) 2005-06-15 2012-11-13 Qnx Software Systems Limited System for detecting speech with background voice estimates and noise estimates
US8170875B2 (en) 2005-06-15 2012-05-01 Qnx Software Systems Limited Speech end-pointer
US7117075B1 (en) * 2005-08-15 2006-10-03 Report On Board Llc Driver activity and vehicle operation logging and reporting
US7995713B2 (en) * 2006-04-03 2011-08-09 Agere Systems Inc. Voice-identification-based signal processing for multiple-talker applications
US7844453B2 (en) 2006-05-12 2010-11-30 Qnx Software Systems Co. Robust noise estimation
US8335685B2 (en) 2006-12-22 2012-12-18 Qnx Software Systems Limited Ambient noise compensation system robust to high excitation noise
US8326620B2 (en) 2008-04-30 2012-12-04 Qnx Software Systems Limited Robust downlink speech and noise detector
US8904400B2 (en) 2007-09-11 2014-12-02 2236008 Ontario Inc. Processing system having a partitioning component for resource partitioning
US8850154B2 (en) 2007-09-11 2014-09-30 2236008 Ontario Inc. Processing system having memory partitioning
US8694310B2 (en) 2007-09-17 2014-04-08 Qnx Software Systems Limited Remote control server protocol system
US8209514B2 (en) 2008-02-04 2012-06-26 Qnx Software Systems Limited Media processing system having resource partitioning
DE102010041435A1 (de) * 2010-09-27 2012-03-29 Siemens Medical Instruments Pte. Ltd. Verfahren zum Rekonstruieren eines Sprachsignals und Hörvorrichtung
US9166546B2 (en) 2011-10-24 2015-10-20 Cochlear Limited Post-filter common-gain determination
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Also Published As

Publication number Publication date
KR880701435A (ko) 1988-07-27
DK282587A (da) 1987-12-03
EP0750291A1 (de) 1996-12-27
DK282587D0 (da) 1987-06-02
FI92113C (fi) 1994-09-26
FI872450A (fi) 1987-12-03
FI92113B (fi) 1994-06-15
DK171426B1 (da) 1996-10-21
ATE183009T1 (de) 1999-08-15
WO1987007750A1 (en) 1987-12-17
JP2654503B2 (ja) 1997-09-17
CA1310418C (en) 1992-11-17
EP0248609A1 (de) 1987-12-09
ATE109582T1 (de) 1994-08-15
US4912766A (en) 1990-03-27
JPH0677894A (ja) 1994-03-18
ES2056819T3 (es) 1994-10-16
JPS63503487A (ja) 1988-12-15
JPH09325790A (ja) 1997-12-16
DE3752288T2 (de) 2000-07-06
GB8613327D0 (en) 1986-07-09
DE3750314D1 (de) 1994-09-08
KR950011963B1 (ko) 1995-10-12
HK137096A (en) 1996-08-02
DE3752288D1 (de) 1999-09-09
EP0248609B1 (de) 1994-08-03
EP0750291B1 (de) 1999-08-04
JP2561850B2 (ja) 1996-12-11
FI872450A0 (fi) 1987-06-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee