DK1275109T3 - Spectral enhancement method and device - Google Patents

Spectral enhancement method and device

Info

Publication number
DK1275109T3
DK1275109T3 DK01925627T DK01925627T DK1275109T3 DK 1275109 T3 DK1275109 T3 DK 1275109T3 DK 01925627 T DK01925627 T DK 01925627T DK 01925627 T DK01925627 T DK 01925627T DK 1275109 T3 DK1275109 T3 DK 1275109T3
Authority
DK
Denmark
Prior art keywords
spectrum
signal
spectral
band
enhancing
Prior art date
Application number
DK01925627T
Other languages
Danish (da)
Other versions
DK1275109T4 (en
Inventor
Pierrick Philippe
Patrice Collen
Original Assignee
France Telecom
Telediffusion Fse
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8849404&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK1275109(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by France Telecom, Telediffusion Fse filed Critical France Telecom
Application granted granted Critical
Publication of DK1275109T3 publication Critical patent/DK1275109T3/en
Publication of DK1275109T4 publication Critical patent/DK1275109T4/en

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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission

Abstract

The invention concerns a method for spectral enhancement and a device therefor. The inventive method is a method for enhancing spectral content of a signal having an incomplete spectrum including a first spectral band, the method comprising the following steps: at least transposing the spectral content of said first band into a second spectral band not included in said spectrum to generate a transposed spectrum signal, with spectrum limited to said second spectral band; transforming the spectrum of the transposed spectrum signal to obtain an enhancing signal; combining the incomplete spectrum signal and the enhancing signal to produce a spectrum enhanced signal. The invention is characterised in that said spectral content is subjected to a whitening step.
DK01925627.0T 2000-04-18 2001-04-12 Spectral enhancement method and device DK1275109T4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0005023A FR2807897B1 (en) 2000-04-18 2000-04-18 SPECTRAL ENRICHMENT METHOD AND DEVICE
PCT/FR2001/001126 WO2001080223A1 (en) 2000-04-18 2001-04-12 Spectral enhancing method and device

Publications (2)

Publication Number Publication Date
DK1275109T3 true DK1275109T3 (en) 2004-12-20
DK1275109T4 DK1275109T4 (en) 2019-02-11

Family

ID=8849404

Family Applications (1)

Application Number Title Priority Date Filing Date
DK01925627.0T DK1275109T4 (en) 2000-04-18 2001-04-12 Spectral enhancement method and device

Country Status (11)

Country Link
EP (1) EP1275109B2 (en)
JP (1) JP4928703B2 (en)
KR (1) KR100754033B1 (en)
CN (1) CN1182514C (en)
AT (1) ATE276570T1 (en)
DE (1) DE60105576T3 (en)
DK (1) DK1275109T4 (en)
ES (1) ES2228847T5 (en)
FR (1) FR2807897B1 (en)
PT (1) PT1275109E (en)
WO (1) WO2001080223A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0001926D0 (en) * 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation / folding in the subband domain
US20030187663A1 (en) 2002-03-28 2003-10-02 Truman Michael Mead Broadband frequency translation for high frequency regeneration
US7447631B2 (en) * 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
JP3861770B2 (en) * 2002-08-21 2006-12-20 ソニー株式会社 Signal encoding apparatus and method, signal decoding apparatus and method, program, and recording medium
DE102004021403A1 (en) * 2004-04-30 2005-11-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Information signal processing by modification in the spectral / modulation spectral range representation
FR2875351A1 (en) * 2004-09-16 2006-03-17 France Telecom METHOD OF PROCESSING DATA BY PASSING BETWEEN DOMAINS DIFFERENT FROM SUB-BANDS
JP5034228B2 (en) * 2005-11-30 2012-09-26 株式会社Ｊｖｃケンウッド Interpolation device, sound reproduction device, interpolation method and interpolation program
KR101390188B1 (en) * 2006-06-21 2014-04-30 삼성전자주식회사 Method and apparatus for encoding and decoding adaptive high frequency band
US9159333B2 (en) 2006-06-21 2015-10-13 Samsung Electronics Co., Ltd. Method and apparatus for adaptively encoding and decoding high frequency band
US8935158B2 (en) 2006-12-13 2015-01-13 Samsung Electronics Co., Ltd. Apparatus and method for comparing frames using spectral information of audio signal
KR100860830B1 (en) * 2006-12-13 2008-09-30 삼성전자주식회사 Method and apparatus for estimating spectrum information of audio signal
DE102007035171A1 (en) 2007-07-27 2009-02-05 Siemens Medical Instruments Pte. Ltd. Method for adapting a hearing aid by means of a perceptive model
JP7214726B2 (en) * 2017-10-27 2023-01-30 フラウンホッファー－ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ Apparatus, method or computer program for generating an extended bandwidth audio signal using a neural network processor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1220282A (en) † 1985-04-03 1987-04-07 Northern Telecom Limited Transmission of wideband speech signals
EP0551705A3 (en) † 1992-01-15 1993-08-18 Ericsson Ge Mobile Communications Inc. Method for subbandcoding using synthetic filler signals for non transmitted subbands
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
US5915235A (en) 1995-04-28 1999-06-22 Dejaco; Andrew P. Adaptive equalizer preprocessor for mobile telephone speech coder to modify nonideal frequency response of acoustic transducer
SE512719C2 (en) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd A method and apparatus for reducing data flow based on harmonic bandwidth expansion
EP0994464A1 (en) * 1998-10-13 2000-04-19 Koninklijke Philips Electronics N.V. Method and apparatus for generating a wide-band signal from a narrow-band signal and telephone equipment comprising such an apparatus
SE9903553D0 (en) † 1999-01-27 1999-10-01 Lars Liljeryd Enhancing conceptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)

Also Published As

Publication number Publication date
DK1275109T4 (en) 2019-02-11
PT1275109E (en) 2005-02-28
WO2001080223A1 (en) 2001-10-25
FR2807897A1 (en) 2001-10-19
DE60105576T2 (en) 2005-11-17
ES2228847T5 (en) 2019-06-14
CN1182514C (en) 2004-12-29
CN1425177A (en) 2003-06-18
ES2228847T3 (en) 2005-04-16
JP4928703B2 (en) 2012-05-09
KR100754033B1 (en) 2007-09-04
DE60105576D1 (en) 2004-10-21
EP1275109B2 (en) 2018-11-07
EP1275109B1 (en) 2004-09-15
EP1275109A1 (en) 2003-01-15
DE60105576T3 (en) 2019-02-21
ATE276570T1 (en) 2004-10-15
FR2807897B1 (en) 2003-07-18
KR20030007528A (en) 2003-01-23
JP2004501387A (en) 2004-01-15

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