AU2001292908A1 - Digital signal processing techniques for improving audio clarity and intelligibility - Google Patents

Digital signal processing techniques for improving audio clarity and intelligibility

Info

Publication number
AU2001292908A1
AU2001292908A1 AU2001292908A AU9290801A AU2001292908A1 AU 2001292908 A1 AU2001292908 A1 AU 2001292908A1 AU 2001292908 A AU2001292908 A AU 2001292908A AU 9290801 A AU9290801 A AU 9290801A AU 2001292908 A1 AU2001292908 A1 AU 2001292908A1
Authority
AU
Australia
Prior art keywords
intelligibility
signal processing
digital signal
processing techniques
improving audio
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
AU2001292908A
Inventor
Timothy J. Carroll
Leif Claesson
Richard Hodges
Keith Mcmillen
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.)
Octiv Inc
Original Assignee
Octiv Inc
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 US09/669,069 external-priority patent/US6940987B2/en
Application filed by Octiv Inc filed Critical Octiv Inc
Publication of AU2001292908A1 publication Critical patent/AU2001292908A1/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
    • 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
    • G10L19/0208—Subband vocoders
    • 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
    • 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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
AU2001292908A 2000-09-22 2001-09-19 Digital signal processing techniques for improving audio clarity and intelligibility Abandoned AU2001292908A1 (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US09/669,069 2000-09-22
US09/669,069 US6940987B2 (en) 1999-12-31 2000-12-20 Techniques for improving audio clarity and intelligibility at reduced bit rates over a digital network
US28993601P 2001-05-09 2001-05-09
US60/289,936 2001-05-09
US29368401P 2001-05-25 2001-05-25
US60/293,684 2001-05-25
US09/927,578 US20020075965A1 (en) 2000-12-20 2001-08-06 Digital signal processing techniques for improving audio clarity and intelligibility
US09/927,578 2001-08-06
PCT/US2001/029552 WO2002025886A1 (en) 2000-09-22 2001-09-19 Digital signal processing techniques for improving audio clarity and intelligibility

Publications (1)

Publication Number Publication Date
AU2001292908A1 true AU2001292908A1 (en) 2002-04-02

Family

ID=27501517

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001292908A Abandoned AU2001292908A1 (en) 2000-09-22 2001-09-19 Digital signal processing techniques for improving audio clarity and intelligibility

Country Status (5)

Country Link
US (1) US20020075965A1 (en)
EP (1) EP1325601A4 (en)
JP (1) JP2004509378A (en)
AU (1) AU2001292908A1 (en)
WO (1) WO2002025886A1 (en)

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US9137035B2 (en) 2002-05-09 2015-09-15 Netstreams Llc Legacy converter and controller for an audio video distribution system
WO2003104924A2 (en) * 2002-06-05 2003-12-18 Sonic Focus, Inc. Acoustical virtual reality engine and advanced techniques for enhancing delivered sound
US20040019520A1 (en) * 2002-07-24 2004-01-29 Guglielmucci Luis Felipe Business model for the sale of recorded media through the Internet and other distribution channels adapted to the acoustic print and/or replay system set up of the customer
US20040019527A1 (en) * 2002-07-24 2004-01-29 Guglielmucci Luis Felipe System for the sale of recorded media through the internet adapted to the acoustic print and replay system set up of the customer
US7903825B1 (en) * 2006-03-03 2011-03-08 Cirrus Logic, Inc. Personal audio playback device having gain control responsive to environmental sounds
US20100303046A1 (en) * 2009-05-27 2010-12-02 Netstreams, Llc Wireless video and audio network distribution system
US9215527B1 (en) 2009-12-14 2015-12-15 Cirrus Logic, Inc. Multi-band integrated speech separating microphone array processor with adaptive beamforming
GB2563687B (en) * 2017-06-19 2019-11-20 Cirrus Logic Int Semiconductor Ltd Audio test mode
US10911013B2 (en) 2018-07-05 2021-02-02 Comcast Cable Communications, Llc Dynamic audio normalization process

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Also Published As

Publication number Publication date
WO2002025886A8 (en) 2002-08-01
EP1325601A1 (en) 2003-07-09
US20020075965A1 (en) 2002-06-20
WO2002025886A1 (en) 2002-03-28
EP1325601A4 (en) 2005-11-09
JP2004509378A (en) 2004-03-25

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