DE602006009927D1 - Method and system for providing an extended bandwidth audio signal - Google Patents

Method and system for providing an extended bandwidth audio signal

Info

Publication number
DE602006009927D1
DE602006009927D1 DE602006009927T DE602006009927T DE602006009927D1 DE 602006009927 D1 DE602006009927 D1 DE 602006009927D1 DE 602006009927 T DE602006009927 T DE 602006009927T DE 602006009927 T DE602006009927 T DE 602006009927T DE 602006009927 D1 DE602006009927 D1 DE 602006009927D1
Authority
DE
Germany
Prior art keywords
bandwidth limit
current
acoustic signal
providing
bandwidth
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.)
Active
Application number
DE602006009927T
Other languages
German (de)
Inventor
Tim Haulick
Bernd Iser
Gerhard Schmidt
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.)
Harman Becker Automotive Systems GmbH
Original Assignee
Harman Becker Automotive Systems 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 Harman Becker Automotive Systems GmbH filed Critical Harman Becker Automotive Systems GmbH
Publication of DE602006009927D1 publication Critical patent/DE602006009927D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L2019/0001—Codebooks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

The invention is directed to a method for providing an acoustic signal with extended bandwidth, comprising automatically determining a current upper and a current lower bandwidth limit of a received acoustic signal, automatically determining at least one complementary signal to complement the received acoustic signal between a predefined lower broadband bandwidth limit and the current lower bandwidth limit and/or between the current upper bandwidth limit and a predefined upper broadband bandwidth limit, wherein the predefined lower broadband bandwidth limit is smaller than the current bandwidth limit and the predefined upper broadband bandwidth limit is larger than the current upper bandwidth limit, automatically assembling the at least one complementary signal and the received acoustic signal to obtain an acoustic signal with extended bandwidth.
DE602006009927T 2006-08-22 2006-08-22 Method and system for providing an extended bandwidth audio signal Active DE602006009927D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06017456A EP1892703B1 (en) 2006-08-22 2006-08-22 Method and system for providing an acoustic signal with extended bandwidth

Publications (1)

Publication Number Publication Date
DE602006009927D1 true DE602006009927D1 (en) 2009-12-03

Family

ID=37000103

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006009927T Active DE602006009927D1 (en) 2006-08-22 2006-08-22 Method and system for providing an extended bandwidth audio signal

Country Status (7)

Country Link
EP (1) EP1892703B1 (en)
JP (1) JP5150165B2 (en)
KR (1) KR101433833B1 (en)
CN (1) CN101141533B (en)
AT (1) ATE446572T1 (en)
CA (1) CA2596411A1 (en)
DE (1) DE602006009927D1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8688441B2 (en) 2007-11-29 2014-04-01 Motorola Mobility Llc Method and apparatus to facilitate provision and use of an energy value to determine a spectral envelope shape for out-of-signal bandwidth content
US8433582B2 (en) 2008-02-01 2013-04-30 Motorola Mobility Llc Method and apparatus for estimating high-band energy in a bandwidth extension system
US20090201983A1 (en) 2008-02-07 2009-08-13 Motorola, Inc. Method and apparatus for estimating high-band energy in a bandwidth extension system
US8463412B2 (en) 2008-08-21 2013-06-11 Motorola Mobility Llc Method and apparatus to facilitate determining signal bounding frequencies
JP2010079275A (en) * 2008-08-29 2010-04-08 Sony Corp Device and method for expanding frequency band, device and method for encoding, device and method for decoding, and program
US8463599B2 (en) 2009-02-04 2013-06-11 Motorola Mobility Llc Bandwidth extension method and apparatus for a modified discrete cosine transform audio coder
DE112010005020B4 (en) * 2009-12-28 2018-12-13 Mitsubishi Electric Corporation Speech signal recovery device and speech signal recovery method
US20130024191A1 (en) * 2010-04-12 2013-01-24 Freescale Semiconductor, Inc. Audio communication device, method for outputting an audio signal, and communication system
EP3680899B1 (en) * 2013-01-29 2024-03-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, method and computer program using an increased temporal resolution in temporal proximity of offsets of fricatives or affricates
KR20180056032A (en) 2016-11-18 2018-05-28 삼성전자주식회사 Signal processing processor and controlling method thereof
CN107404625B (en) * 2017-07-18 2020-10-16 海信视像科技股份有限公司 Sound effect processing method and device of terminal
KR102093819B1 (en) * 2018-09-10 2020-03-26 한국과학기술연구원 Apparatus and method for separating sound sources

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3483958B2 (en) * 1994-10-28 2004-01-06 三菱電機株式会社 Broadband audio restoration apparatus, wideband audio restoration method, audio transmission system, and audio transmission method
KR100302370B1 (en) 1997-04-30 2001-09-29 닛폰 호소 교카이 Speech interval detection method and system, and speech speed converting method and system using the speech interval detection method and system
US6539355B1 (en) * 1998-10-15 2003-03-25 Sony Corporation Signal band expanding method and apparatus and signal synthesis method and apparatus
US6836739B2 (en) 2000-06-14 2004-12-28 Kabushiki Kaisha Kenwood Frequency interpolating device and frequency interpolating method
JP3713200B2 (en) * 2000-11-30 2005-11-02 株式会社ケンウッド Signal interpolation device, signal interpolation method and recording medium
US6889182B2 (en) 2001-01-12 2005-05-03 Telefonaktiebolaget L M Ericsson (Publ) Speech bandwidth extension
JP4012506B2 (en) * 2001-08-24 2007-11-21 株式会社ケンウッド Apparatus and method for adaptively interpolating frequency components of a signal
CN1550002A (en) * 2001-08-31 2004-11-24 皇家飞利浦电子股份有限公司 Bandwidth extension of a sound signal
JP4281349B2 (en) * 2001-12-25 2009-06-17 パナソニック株式会社 Telephone equipment
WO2005055645A1 (en) * 2003-12-01 2005-06-16 Koninklijke Philips Electronics N.V. Selective audio signal enhancement
WO2005078707A1 (en) * 2004-02-16 2005-08-25 Koninklijke Philips Electronics N.V. A transcoder and method of transcoding therefore
DE602004020765D1 (en) 2004-09-17 2009-06-04 Harman Becker Automotive Sys Bandwidth extension of band-limited tone signals

Also Published As

Publication number Publication date
CA2596411A1 (en) 2008-02-22
JP5150165B2 (en) 2013-02-20
JP2008052277A (en) 2008-03-06
KR101433833B1 (en) 2014-08-27
EP1892703B1 (en) 2009-10-21
CN101141533B (en) 2013-09-04
ATE446572T1 (en) 2009-11-15
CN101141533A (en) 2008-03-12
KR20080018132A (en) 2008-02-27
EP1892703A1 (en) 2008-02-27

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