FI930655A0 - Foerfarande foer minskande av akustiskt brus i en talsignal - Google Patents

Foerfarande foer minskande av akustiskt brus i en talsignal

Info

Publication number
FI930655A0
FI930655A0 FI930655A FI930655A FI930655A0 FI 930655 A0 FI930655 A0 FI 930655A0 FI 930655 A FI930655 A FI 930655A FI 930655 A FI930655 A FI 930655A FI 930655 A0 FI930655 A0 FI 930655A0
Authority
FI
Finland
Prior art keywords
arrival
spectrum
angle
sound signal
frequency channels
Prior art date
Application number
FI930655A
Other languages
English (en)
Other versions
FI104526B (fi
FI930655A (fi
Inventor
Francois Robbe
Luc Dartois
Original Assignee
Alcatel Nv
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 Alcatel Nv filed Critical Alcatel Nv
Publication of FI930655A0 publication Critical patent/FI930655A0/fi
Publication of FI930655A publication Critical patent/FI930655A/fi
Application granted granted Critical
Publication of FI104526B publication Critical patent/FI104526B/fi

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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • G01S3/802—Systems for determining direction or deviation from predetermined direction
    • G01S3/808—Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Otolaryngology (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Alarm Systems (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Noise Elimination (AREA)
  • Amplifiers (AREA)
  • Heat Treatment Of Articles (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
FI930655A 1992-02-18 1993-02-15 Menetelmä akustisen kohinan vähentämiseksi puhesignaalissa FI104526B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9201819A FR2687496B1 (fr) 1992-02-18 1992-02-18 Procede de reduction de bruit acoustique dans un signal de parole.
FR9201819 1992-02-18

Publications (3)

Publication Number Publication Date
FI930655A0 true FI930655A0 (fi) 1993-02-15
FI930655A FI930655A (fi) 1993-08-19
FI104526B FI104526B (fi) 2000-02-15

Family

ID=9426753

Family Applications (1)

Application Number Title Priority Date Filing Date
FI930655A FI104526B (fi) 1992-02-18 1993-02-15 Menetelmä akustisen kohinan vähentämiseksi puhesignaalissa

Country Status (11)

Country Link
US (1) US5539859A (fi)
EP (1) EP0557166B1 (fi)
AT (1) ATE159373T1 (fi)
AU (1) AU662199B2 (fi)
DE (1) DE69314514T2 (fi)
DK (1) DK0557166T3 (fi)
ES (1) ES2107635T3 (fi)
FI (1) FI104526B (fi)
FR (1) FR2687496B1 (fi)
GR (1) GR3025804T3 (fi)
NZ (1) NZ245850A (fi)

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JP5493850B2 (ja) * 2009-12-28 2014-05-14 富士通株式会社 信号処理装置、マイクロホン・アレイ装置、信号処理方法、および信号処理プログラム
JP5593852B2 (ja) * 2010-06-01 2014-09-24 ソニー株式会社 音声信号処理装置、音声信号処理方法
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Also Published As

Publication number Publication date
EP0557166A1 (fr) 1993-08-25
GR3025804T3 (en) 1998-03-31
NZ245850A (en) 1995-11-27
ES2107635T3 (es) 1997-12-01
DK0557166T3 (da) 1997-11-03
EP0557166B1 (fr) 1997-10-15
US5539859A (en) 1996-07-23
FI104526B (fi) 2000-02-15
FR2687496A1 (fr) 1993-08-20
DE69314514D1 (de) 1997-11-20
FR2687496B1 (fr) 1994-04-01
AU662199B2 (en) 1995-08-24
AU3285493A (en) 1993-08-19
ATE159373T1 (de) 1997-11-15
FI930655A (fi) 1993-08-19
DE69314514T2 (de) 1998-02-12

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