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FR2821501B1 - Procede et dispositif de reconstruction spectrale d'un signal a spectre incomplet et systeme de codage/decodage associe - Google Patents

Procede et dispositif de reconstruction spectrale d'un signal a spectre incomplet et systeme de codage/decodage associe

Info

Publication number
FR2821501B1
FR2821501B1 FR0102680A FR0102680A FR2821501B1 FR 2821501 B1 FR2821501 B1 FR 2821501B1 FR 0102680 A FR0102680 A FR 0102680A FR 0102680 A FR0102680 A FR 0102680A FR 2821501 B1 FR2821501 B1 FR 2821501B1
Authority
FR
France
Prior art keywords
coding
spectrum signal
decoding system
spectral reconstruction
incomplete spectrum
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.)
Expired - Fee Related
Application number
FR0102680A
Other languages
English (en)
Other versions
FR2821501A1 (fr
Inventor
Pierrick Philippe
Patrice Collen
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.)
Orange SA
Original Assignee
France Telecom SA
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 France Telecom SA filed Critical France Telecom SA
Priority to FR0102680A priority Critical patent/FR2821501B1/fr
Priority to PCT/FR2002/000618 priority patent/WO2002069328A1/fr
Publication of FR2821501A1 publication Critical patent/FR2821501A1/fr
Application granted granted Critical
Publication of FR2821501B1 publication Critical patent/FR2821501B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FR0102680A 2001-02-23 2001-02-23 Procede et dispositif de reconstruction spectrale d'un signal a spectre incomplet et systeme de codage/decodage associe Expired - Fee Related FR2821501B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0102680A FR2821501B1 (fr) 2001-02-23 2001-02-23 Procede et dispositif de reconstruction spectrale d'un signal a spectre incomplet et systeme de codage/decodage associe
PCT/FR2002/000618 WO2002069328A1 (fr) 2001-02-23 2002-02-18 Reconstruction spectrale et codage d'un signal a spectre incomplet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0102680A FR2821501B1 (fr) 2001-02-23 2001-02-23 Procede et dispositif de reconstruction spectrale d'un signal a spectre incomplet et systeme de codage/decodage associe

Publications (2)

Publication Number Publication Date
FR2821501A1 FR2821501A1 (fr) 2002-08-30
FR2821501B1 true FR2821501B1 (fr) 2004-07-16

Family

ID=8860515

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0102680A Expired - Fee Related FR2821501B1 (fr) 2001-02-23 2001-02-23 Procede et dispositif de reconstruction spectrale d'un signal a spectre incomplet et systeme de codage/decodage associe

Country Status (2)

Country Link
FR (1) FR2821501B1 (fr)
WO (1) WO2002069328A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2765345C2 (ru) * 2010-08-03 2022-01-28 Сони Корпорейшн Устройство и способ обработки сигнала и программа

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2354427T3 (es) * 2003-06-30 2011-03-14 Koninklijke Philips Electronics N.V. Mejora de la calidad de audio decodificado mediante la adición de ruido.
KR101256808B1 (ko) 2009-01-16 2013-04-22 돌비 인터네셔널 에이비 외적 향상 고조파 전치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
SE9903553D0 (sv) * 1999-01-27 1999-10-01 Lars Liljeryd Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2765345C2 (ru) * 2010-08-03 2022-01-28 Сони Корпорейшн Устройство и способ обработки сигнала и программа

Also Published As

Publication number Publication date
WO2002069328A1 (fr) 2002-09-06
FR2821501A1 (fr) 2002-08-30

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20141031