FI20030088A - Ljudsignalsbehandlingsanordning - Google Patents

Ljudsignalsbehandlingsanordning Download PDF

Info

Publication number
FI20030088A
FI20030088A FI20030088A FI20030088A FI20030088A FI 20030088 A FI20030088 A FI 20030088A FI 20030088 A FI20030088 A FI 20030088A FI 20030088 A FI20030088 A FI 20030088A FI 20030088 A FI20030088 A FI 20030088A
Authority
FI
Finland
Prior art keywords
processing device
signal processing
audio signal
audio
signal
Prior art date
Application number
FI20030088A
Other languages
English (en)
Finnish (fi)
Other versions
FI116594B (sv
Inventor
Joji Kane
Akira Nohara
Original Assignee
Matsushita Electric Ind Co Ltd
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
Priority claimed from JP2008592A external-priority patent/JP2712691B2/ja
Priority claimed from JP2008595A external-priority patent/JP2712692B2/ja
Priority claimed from JP2017348A external-priority patent/JPH03220600A/ja
Priority claimed from JP2026506A external-priority patent/JP2712703B2/ja
Priority claimed from JP2026507A external-priority patent/JP2712704B2/ja
Priority claimed from JP2034297A external-priority patent/JP2712708B2/ja
Application filed by Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of FI20030088A publication Critical patent/FI20030088A/sv
Application granted granted Critical
Publication of FI116594B publication Critical patent/FI116594B/sv

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L2025/783—Detection of presence or absence of voice signals based on threshold decision
    • G10L2025/786—Adaptive threshold
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L25/24—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 the cepstrum

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Selective Calling Equipment (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
FI20030088A 1990-01-18 2003-01-21 Ljudsignalsbehandlingsanordning FI116594B (sv)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP2008592A JP2712691B2 (ja) 1990-01-18 1990-01-18 信号処理装置
JP859590 1990-01-18
JP2008595A JP2712692B2 (ja) 1990-01-18 1990-01-18 信号制御装置
JP859290 1990-01-18
JP2017348A JPH03220600A (ja) 1990-01-26 1990-01-26 音声検出装置
JP1734890 1990-01-26
JP2650790 1990-02-06
JP2026506A JP2712703B2 (ja) 1990-02-06 1990-02-06 信号処理装置
JP2026507A JP2712704B2 (ja) 1990-02-06 1990-02-06 信号処理装置
JP2650690 1990-02-06
JP3429790 1990-02-14
JP2034297A JP2712708B2 (ja) 1990-02-14 1990-02-14 音声検出装置

Publications (2)

Publication Number Publication Date
FI20030088A true FI20030088A (sv) 2003-01-21
FI116594B FI116594B (sv) 2005-12-30

Family

ID=27548141

Family Applications (4)

Application Number Title Priority Date Filing Date
FI910293A FI115569B (sv) 1990-01-18 1991-01-18 Ljudsignalsbehandlingsanordning
FI20030087A FI117953B (sv) 1990-01-18 2003-01-21 Ljudsignalsbehandlingsanordning
FI20030089A FI116595B (sv) 1990-01-18 2003-01-21 Ljudsignalsbehandlingsanordning
FI20030088A FI116594B (sv) 1990-01-18 2003-01-21 Ljudsignalsbehandlingsanordning

Family Applications Before (3)

Application Number Title Priority Date Filing Date
FI910293A FI115569B (sv) 1990-01-18 1991-01-18 Ljudsignalsbehandlingsanordning
FI20030087A FI117953B (sv) 1990-01-18 2003-01-21 Ljudsignalsbehandlingsanordning
FI20030089A FI116595B (sv) 1990-01-18 2003-01-21 Ljudsignalsbehandlingsanordning

Country Status (9)

Country Link
US (1) US5195138A (sv)
EP (4) EP0614171B1 (sv)
KR (1) KR960005739B1 (sv)
AU (1) AU644124B2 (sv)
CA (1) CA2034333C (sv)
DE (4) DE69130294T2 (sv)
FI (4) FI115569B (sv)
HK (4) HK184795A (sv)
NO (4) NO306489B1 (sv)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5414674A (en) * 1993-11-12 1995-05-09 Discovery Bay Company Resonant energy analysis method and apparatus for seismic data
US5502717A (en) * 1994-08-01 1996-03-26 Motorola Inc. Method and apparatus for estimating echo cancellation time
WO1998001847A1 (en) * 1996-07-03 1998-01-15 British Telecommunications Public Limited Company Voice activity detector
US6314396B1 (en) 1998-11-06 2001-11-06 International Business Machines Corporation Automatic gain control in a speech recognition system
JP3878482B2 (ja) * 1999-11-24 2007-02-07 富士通株式会社 音声検出装置および音声検出方法
US6876965B2 (en) 2001-02-28 2005-04-05 Telefonaktiebolaget Lm Ericsson (Publ) Reduced complexity voice activity detector
US7426470B2 (en) * 2002-10-03 2008-09-16 Ntt Docomo, Inc. Energy-based nonuniform time-scale modification of audio signals
WO2006005337A1 (en) * 2004-06-11 2006-01-19 Nanonord A/S A method for analyzing fundamental frequencies and application of the method
US8264909B2 (en) * 2010-02-02 2012-09-11 The United States Of America As Represented By The Secretary Of The Navy System and method for depth determination of an impulse acoustic source by cepstral analysis
CN105144133B (zh) * 2013-03-15 2020-11-20 苹果公司 对中断进行上下文相关处理
CN104967793B (zh) * 2015-07-28 2023-09-19 格科微电子（上海）有限公司 适用于cmos图像传感器的电源噪声抵消电路
CN111883183B (zh) * 2020-03-16 2023-09-12 珠海市杰理科技股份有限公司 语音信号筛选方法、装置、音频设备和系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1116300A (en) * 1977-12-28 1982-01-12 Hiroaki Sakoe Speech recognition system
AU598933B2 (en) * 1987-04-03 1990-07-05 American Telephone And Telegraph Company An adaptive threshold voiced detector

Also Published As

Publication number Publication date
DE69130294T2 (de) 1999-05-06
DE69132147T2 (de) 2000-09-21
KR910014869A (ko) 1991-08-31
DE69112855T2 (de) 1996-02-15
KR960005739B1 (ko) 1996-05-01
EP0439073B1 (en) 1995-09-13
DE69112855D1 (de) 1995-10-19
EP0614169B1 (en) 1998-09-30
US5195138A (en) 1993-03-16
HK1010006A1 (en) 1999-06-11
CA2034333A1 (en) 1991-07-19
NO992257D0 (no) 1999-05-10
EP0614169A1 (en) 1994-09-07
AU644124B2 (en) 1993-12-02
FI20030087A (sv) 2003-01-21
FI116595B (sv) 2005-12-30
FI115569B (sv) 2005-05-31
NO308335B1 (no) 2000-08-28
CA2034333C (en) 1996-04-16
FI910293A0 (fi) 1991-01-18
FI116594B (sv) 2005-12-30
HK1010008A1 (en) 1999-06-11
NO992256D0 (no) 1999-05-10
EP0439073A1 (en) 1991-07-31
NO992257L (no) 1991-07-19
FI20030089A (sv) 2003-01-21
EP0614171A1 (en) 1994-09-07
DE69132148T2 (de) 2000-09-21
DE69132147D1 (de) 2000-05-31
HK1010007A1 (en) 1999-06-11
EP0614171B1 (en) 2000-04-26
AU6868891A (en) 1991-07-25
HK184795A (en) 1995-12-15
NO308337B1 (no) 2000-08-28
NO910221D0 (no) 1991-01-18
NO308336B1 (no) 2000-08-28
EP0614170B1 (en) 2000-04-26
NO992258L (no) 1991-07-19
FI910293A (fi) 1991-07-19
DE69130294D1 (de) 1998-11-05
NO910221L (no) 1991-07-19
NO306489B1 (no) 1999-11-08
EP0614170A1 (en) 1994-09-07
DE69132148D1 (de) 2000-05-31
NO992258D0 (no) 1999-05-10
NO992256L (no) 1991-07-19
FI117953B (sv) 2007-04-30

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