FI104526B - Menetelmä akustisen kohinan vähentämiseksi puhesignaalissa - Google Patents

Menetelmä akustisen kohinan vähentämiseksi puhesignaalissa Download PDF

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Publication number
FI104526B
FI104526B FI930655A FI930655A FI104526B FI 104526 B FI104526 B FI 104526B FI 930655 A FI930655 A FI 930655A FI 930655 A FI930655 A FI 930655A FI 104526 B FI104526 B FI 104526B
Authority
FI
Finland
Prior art keywords
spectrum
noise
angle
frequency
channels
Prior art date
Application number
FI930655A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI930655A0 (fi
FI930655A7 (fi
Inventor
Luc Dartois
Francois Robbe
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 FI930655A7 publication Critical patent/FI930655A7/fi
Application granted granted Critical
Publication of FI104526B publication Critical patent/FI104526B/fi

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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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/005—Circuits for transducers for combining the signals of two or more microphones

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Remote Sensing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Quality & Reliability (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Computational Linguistics (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Human Computer Interaction (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Alarm Systems (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Noise Elimination (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)
  • Heat Treatment Of Articles (AREA)
  • Amplifiers (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 FI930655A0 (fi) 1993-02-15
FI930655A7 FI930655A7 (fi) 1993-08-19
FI104526B true 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 (de)
EP (1) EP0557166B1 (de)
AT (1) ATE159373T1 (de)
AU (1) AU662199B2 (de)
DE (1) DE69314514T2 (de)
DK (1) DK0557166T3 (de)
ES (1) ES2107635T3 (de)
FI (1) FI104526B (de)
FR (1) FR2687496B1 (de)
GR (1) GR3025804T3 (de)
NZ (1) NZ245850A (de)

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Also Published As

Publication number Publication date
FR2687496A1 (fr) 1993-08-20
GR3025804T3 (en) 1998-03-31
ES2107635T3 (es) 1997-12-01
DE69314514D1 (de) 1997-11-20
FI930655A0 (fi) 1993-02-15
FR2687496B1 (fr) 1994-04-01
EP0557166B1 (de) 1997-10-15
EP0557166A1 (de) 1993-08-25
AU662199B2 (en) 1995-08-24
DK0557166T3 (da) 1997-11-03
FI930655A7 (fi) 1993-08-19
AU3285493A (en) 1993-08-19
NZ245850A (en) 1995-11-27
US5539859A (en) 1996-07-23
DE69314514T2 (de) 1998-02-12
ATE159373T1 (de) 1997-11-15

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