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AU2001228741A1 - Wideband speech codec using different sampling rates - Google Patents

Wideband speech codec using different sampling rates

Info

Publication number
AU2001228741A1
AU2001228741A1 AU2001228741A AU2874101A AU2001228741A1 AU 2001228741 A1 AU2001228741 A1 AU 2001228741A1 AU 2001228741 A AU2001228741 A AU 2001228741A AU 2874101 A AU2874101 A AU 2874101A AU 2001228741 A1 AU2001228741 A1 AU 2001228741A1
Authority
AU
Australia
Prior art keywords
sampling rates
different sampling
speech codec
wideband speech
wideband
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
AU2001228741A
Inventor
Hannu Mikkola
Janne Vainio
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.)
Nokia Inc
Original Assignee
Nokia Mobile Phones 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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Publication of AU2001228741A1 publication Critical patent/AU2001228741A1/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
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • 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
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders

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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
AU2001228741A 2000-02-16 2001-02-02 Wideband speech codec using different sampling rates Abandoned AU2001228741A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09505411 2000-02-16
US09/505,411 US6732070B1 (en) 2000-02-16 2000-02-16 Wideband speech codec using a higher sampling rate in analysis and synthesis filtering than in excitation searching
PCT/IB2001/000134 WO2001061687A1 (en) 2000-02-16 2001-02-02 Wideband speech codec using different sampling rates

Publications (1)

Publication Number Publication Date
AU2001228741A1 true AU2001228741A1 (en) 2001-08-27

Family

ID=24010193

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001228741A Abandoned AU2001228741A1 (en) 2000-02-16 2001-02-02 Wideband speech codec using different sampling rates

Country Status (5)

Country Link
US (1) US6732070B1 (en)
EP (1) EP1273005B1 (en)
AU (1) AU2001228741A1 (en)
DE (1) DE60134966D1 (en)
WO (1) WO2001061687A1 (en)

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US8879432B2 (en) * 2002-09-27 2014-11-04 Broadcom Corporation Splitter and combiner for multiple data rate communication system
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US7668712B2 (en) * 2004-03-31 2010-02-23 Microsoft Corporation Audio encoding and decoding with intra frames and adaptive forward error correction
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DK1875463T3 (en) * 2005-04-22 2019-01-28 Qualcomm Inc SYSTEMS, PROCEDURES AND APPARATUS FOR AMPLIFIER FACTOR GLOSSARY
US7831421B2 (en) * 2005-05-31 2010-11-09 Microsoft Corporation Robust decoder
US7707034B2 (en) * 2005-05-31 2010-04-27 Microsoft Corporation Audio codec post-filter
US7177804B2 (en) * 2005-05-31 2007-02-13 Microsoft Corporation Sub-band voice codec with multi-stage codebooks and redundant coding
WO2007114291A1 (en) * 2006-03-31 2007-10-11 Matsushita Electric Industrial Co., Ltd. Sound encoder, sound decoder, and their methods
US7633417B1 (en) * 2006-06-03 2009-12-15 Alcatel Lucent Device and method for enhancing the human perceptual quality of a multimedia signal
US9454974B2 (en) * 2006-07-31 2016-09-27 Qualcomm Incorporated Systems, methods, and apparatus for gain factor limiting
US8005671B2 (en) * 2006-12-04 2011-08-23 Qualcomm Incorporated Systems and methods for dynamic normalization to reduce loss in precision for low-level signals
EP2246845A1 (en) * 2009-04-21 2010-11-03 Siemens Medical Instruments Pte. Ltd. Method and acoustic signal processing device for estimating linear predictive coding coefficients
WO2010140281A1 (en) * 2009-06-04 2010-12-09 シャープ株式会社 Signal processing device, control method for signal processing device, control program, and computer-readable storage medium having the control program recorded therein
CN102598668B (en) 2009-11-17 2014-11-12 夏普株式会社 Coding device, decoding device, control method of coding device, control method of decoding device, transmission system
US8824825B2 (en) 2009-11-17 2014-09-02 Sharp Kabushiki Kaisha Decoding device with nonlinear process section, control method for the decoding device, transmission system, and computer-readable recording medium having a control program recorded thereon
US9070361B2 (en) * 2011-06-10 2015-06-30 Google Technology Holdings LLC Method and apparatus for encoding a wideband speech signal utilizing downmixing of a highband component
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Also Published As

Publication number Publication date
EP1273005A1 (en) 2003-01-08
DE60134966D1 (en) 2008-09-04
US6732070B1 (en) 2004-05-04
EP1273005B1 (en) 2008-07-23
WO2001061687A1 (en) 2001-08-23

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