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AU2001282454A1 - Voice enhancement system - Google Patents

Voice enhancement system

Info

Publication number
AU2001282454A1
AU2001282454A1 AU2001282454A AU8245401A AU2001282454A1 AU 2001282454 A1 AU2001282454 A1 AU 2001282454A1 AU 2001282454 A AU2001282454 A AU 2001282454A AU 8245401 A AU8245401 A AU 8245401A AU 2001282454 A1 AU2001282454 A1 AU 2001282454A1
Authority
AU
Australia
Prior art keywords
audio signal
frequency component
enhancement system
voice enhancement
measure
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2001282454A
Inventor
Zvi Licht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Clear Audio Ltd
Original Assignee
Clear Audio 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
Application filed by Clear Audio Ltd filed Critical Clear Audio Ltd
Publication of AU2001282454A1 publication Critical patent/AU2001282454A1/en
Abandoned legal-status Critical Current

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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/005—Combinations of two or more types of control, e.g. gain control and tone control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Telephone Function (AREA)
  • Selective Calling Equipment (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Traffic Control Systems (AREA)

Abstract

A method of processing an audio signal in order to overcome background noise extraneous to the audio signal. The method includes comparing a measure of the audio signal in a frequency component of the audio signal to a measure of the noise in a frequency component of the background noise, determining a gain responsive to the comparison and amplifying at least a portion of the audio signal, including at least one frequency segment not included in the frequency component of the audio signal, by the determined gain.
AU2001282454A 2000-08-14 2001-08-14 Voice enhancement system Abandoned AU2001282454A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US22451300P 2000-08-14 2000-08-14
US60224513 2000-08-14
US23672100P 2000-10-02 2000-10-02
US60236721 2000-10-02
PCT/IL2001/000759 WO2002015395A1 (en) 2000-07-27 2001-08-14 Voice enhancement system

Publications (1)

Publication Number Publication Date
AU2001282454A1 true AU2001282454A1 (en) 2002-02-25

Family

ID=26918789

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001282454A Abandoned AU2001282454A1 (en) 2000-08-14 2001-08-14 Voice enhancement system

Country Status (10)

Country Link
US (1) US20040057586A1 (en)
EP (2) EP1526639A3 (en)
JP (1) JP2004507141A (en)
KR (1) KR100860805B1 (en)
CN (1) CN100397781C (en)
AT (1) ATE287141T1 (en)
AU (1) AU2001282454A1 (en)
DE (1) DE60108401T2 (en)
IL (1) IL154397A0 (en)
WO (1) WO2002015395A1 (en)

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Also Published As

Publication number Publication date
IL154397A0 (en) 2003-09-17
JP2004507141A (en) 2004-03-04
CN100397781C (en) 2008-06-25
CN1620751A (en) 2005-05-25
DE60108401T2 (en) 2006-04-06
WO2002015395A1 (en) 2002-02-21
KR20030040399A (en) 2003-05-22
EP1312162A1 (en) 2003-05-21
ATE287141T1 (en) 2005-01-15
KR100860805B1 (en) 2008-09-30
EP1526639A2 (en) 2005-04-27
DE60108401D1 (en) 2005-02-17
US20040057586A1 (en) 2004-03-25
EP1312162B1 (en) 2005-01-12
EP1526639A3 (en) 2006-03-01

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