HUP0003010A2 - Signal purification method for the discrimination of a signal from background noise - Google Patents

Signal purification method for the discrimination of a signal from background noise

Info

Publication number
HUP0003010A2
HUP0003010A2 HU0003010A HUP0003010A HUP0003010A2 HU P0003010 A2 HUP0003010 A2 HU P0003010A2 HU 0003010 A HU0003010 A HU 0003010A HU P0003010 A HUP0003010 A HU P0003010A HU P0003010 A2 HUP0003010 A2 HU P0003010A2
Authority
HU
Hungary
Prior art keywords
signal
discrimination
background noise
purification method
signal purification
Prior art date
Application number
HU0003010A
Other languages
English (en)
Inventor
Foeldvari Rudolf Dr
Laszlo Gyimesi
Original Assignee
Herterkom Gmbh
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 Herterkom Gmbh filed Critical Herterkom Gmbh
Priority to HU0003010A priority Critical patent/HUP0003010A2/hu
Publication of HU0003010D0 publication Critical patent/HU0003010D0/hu
Priority to AU2001282047A priority patent/AU2001282047A1/en
Priority to PCT/EP2001/008827 priority patent/WO2002011125A1/en
Publication of HUP0003010A2 publication Critical patent/HUP0003010A2/hu

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
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • 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
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • 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
    • G10L2021/02168—Noise filtering characterised by the method used for estimating noise the estimation exclusively taking place during speech pauses

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (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)
  • Noise Elimination (AREA)
  • Filters That Use Time-Delay Elements (AREA)
HU0003010A 2000-07-31 2000-07-31 Signal purification method for the discrimination of a signal from background noise HUP0003010A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
HU0003010A HUP0003010A2 (en) 2000-07-31 2000-07-31 Signal purification method for the discrimination of a signal from background noise
AU2001282047A AU2001282047A1 (en) 2000-07-31 2001-07-31 Attenuation of background noise and echoes in audio signal
PCT/EP2001/008827 WO2002011125A1 (en) 2000-07-31 2001-07-31 Attenuation of background noise and echoes in audio signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU0003010A HUP0003010A2 (en) 2000-07-31 2000-07-31 Signal purification method for the discrimination of a signal from background noise

Publications (2)

Publication Number Publication Date
HU0003010D0 HU0003010D0 (en) 2000-10-28
HUP0003010A2 true HUP0003010A2 (en) 2002-08-28

Family

ID=89978510

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0003010A HUP0003010A2 (en) 2000-07-31 2000-07-31 Signal purification method for the discrimination of a signal from background noise

Country Status (3)

Country Link
AU (1) AU2001282047A1 (hu)
HU (1) HUP0003010A2 (hu)
WO (1) WO2002011125A1 (hu)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009043066A1 (en) * 2007-10-02 2009-04-09 Akg Acoustics Gmbh Method and device for low-latency auditory model-based single-channel speech enhancement
CN111145770B (zh) * 2018-11-02 2022-11-22 北京微播视界科技有限公司 音频处理方法和装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07261797A (ja) * 1994-03-18 1995-10-13 Mitsubishi Electric Corp 信号符号化装置及び信号復号化装置
US5574824A (en) * 1994-04-11 1996-11-12 The United States Of America As Represented By The Secretary Of The Air Force Analysis/synthesis-based microphone array speech enhancer with variable signal distortion
US5933495A (en) * 1997-02-07 1999-08-03 Texas Instruments Incorporated Subband acoustic noise suppression
US6591234B1 (en) * 1999-01-07 2003-07-08 Tellabs Operations, Inc. Method and apparatus for adaptively suppressing noise

Also Published As

Publication number Publication date
HU0003010D0 (en) 2000-10-28
WO2002011125A1 (en) 2002-02-07
AU2001282047A1 (en) 2002-02-13

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