FI20030088A - Audio signal processing device - Google Patents

Audio signal processing device 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
Finnish (fi)
Swedish (sv)
Other versions
FI116594B (en
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/en
Priority claimed from JP2008595A external-priority patent/JP2712692B2/en
Priority claimed from JP2017348A external-priority patent/JPH03220600A/en
Priority claimed from JP2026507A external-priority patent/JP2712704B2/en
Priority claimed from JP2026506A external-priority patent/JP2712703B2/en
Priority claimed from JP2034297A external-priority patent/JP2712708B2/en
Application filed by Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of FI20030088A publication Critical patent/FI20030088A/en
Application granted granted Critical
Publication of FI116594B publication Critical patent/FI116594B/en

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

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP859590 1990-01-18
JP2008592A JP2712691B2 (en) 1990-01-18 1990-01-18 Signal processing device
JP2008595A JP2712692B2 (en) 1990-01-18 1990-01-18 Signal control device
JP859290 1990-01-18
JP2017348A JPH03220600A (en) 1990-01-26 1990-01-26 Voice detecting device
JP1734890 1990-01-26
JP2026507A JP2712704B2 (en) 1990-02-06 1990-02-06 Signal processing device
JP2650690 1990-02-06
JP2026506A JP2712703B2 (en) 1990-02-06 1990-02-06 Signal processing device
JP2650790 1990-02-06
JP2034297A JP2712708B2 (en) 1990-02-14 1990-02-14 Voice detection device
JP3429790 1990-02-14

Publications (2)

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

Family

ID=27548141

Family Applications (4)

Application Number Title Priority Date Filing Date
FI910293A FI115569B (en) 1990-01-18 1991-01-18 Audio Processing Device
FI20030087A FI117953B (en) 1990-01-18 2003-01-21 Audio signal processing device
FI20030089A FI116595B (en) 1990-01-18 2003-01-21 Audio signal processing device
FI20030088A FI116594B (en) 1990-01-18 2003-01-21 Audio signal processing device

Family Applications Before (3)

Application Number Title Priority Date Filing Date
FI910293A FI115569B (en) 1990-01-18 1991-01-18 Audio Processing Device
FI20030087A FI117953B (en) 1990-01-18 2003-01-21 Audio signal processing device
FI20030089A FI116595B (en) 1990-01-18 2003-01-21 Audio signal processing device

Country Status (9)

Country Link
US (1) US5195138A (en)
EP (4) EP0614169B1 (en)
KR (1) KR960005739B1 (en)
AU (1) AU644124B2 (en)
CA (1) CA2034333C (en)
DE (4) DE69112855T2 (en)
FI (4) FI115569B (en)
HK (4) HK184795A (en)
NO (4) NO306489B1 (en)

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
WO2001039175A1 (en) * 1999-11-24 2001-05-31 Fujitsu Limited Method and apparatus for voice detection
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
AU2014251347B2 (en) * 2013-03-15 2017-05-18 Apple Inc. Context-sensitive handling of interruptions
CN104967793B (en) * 2015-07-28 2023-09-19 格科微电子（上海）有限公司 Power supply noise cancellation circuit suitable for CMOS image sensor
CN111883183B (en) * 2020-03-16 2023-09-12 珠海市杰理科技股份有限公司 Voice signal screening method, device, audio equipment and system

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
EP0309561B1 (en) * 1987-04-03 1992-12-09 AT&T Corp. An adaptive threshold voiced detector

Also Published As

Publication number Publication date
NO992256D0 (en) 1999-05-10
NO308335B1 (en) 2000-08-28
NO992258D0 (en) 1999-05-10
KR910014869A (en) 1991-08-31
EP0614171A1 (en) 1994-09-07
AU6868891A (en) 1991-07-25
FI116594B (en) 2005-12-30
HK184795A (en) 1995-12-15
NO910221D0 (en) 1991-01-18
FI20030089A (en) 2003-01-21
FI115569B (en) 2005-05-31
AU644124B2 (en) 1993-12-02
DE69112855D1 (en) 1995-10-19
NO992258L (en) 1991-07-19
EP0614170B1 (en) 2000-04-26
EP0439073A1 (en) 1991-07-31
FI910293A0 (en) 1991-01-18
DE69132147D1 (en) 2000-05-31
US5195138A (en) 1993-03-16
CA2034333C (en) 1996-04-16
EP0614170A1 (en) 1994-09-07
DE69132148T2 (en) 2000-09-21
DE69132147T2 (en) 2000-09-21
FI910293A (en) 1991-07-19
DE69132148D1 (en) 2000-05-31
NO308336B1 (en) 2000-08-28
NO992257L (en) 1991-07-19
NO992256L (en) 1991-07-19
HK1010006A1 (en) 1999-06-11
CA2034333A1 (en) 1991-07-19
EP0439073B1 (en) 1995-09-13
EP0614171B1 (en) 2000-04-26
KR960005739B1 (en) 1996-05-01
NO306489B1 (en) 1999-11-08
FI116595B (en) 2005-12-30
DE69130294D1 (en) 1998-11-05
HK1010008A1 (en) 1999-06-11
NO910221L (en) 1991-07-19
FI117953B (en) 2007-04-30
FI20030087A (en) 2003-01-21
DE69130294T2 (en) 1999-05-06
NO308337B1 (en) 2000-08-28
EP0614169B1 (en) 1998-09-30
DE69112855T2 (en) 1996-02-15
NO992257D0 (en) 1999-05-10
EP0614169A1 (en) 1994-09-07
HK1010007A1 (en) 1999-06-11

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