BR9808162B1 - método de pós-processamento para um decodificador de voz. - Google Patents

método de pós-processamento para um decodificador de voz.

Info

Publication number
BR9808162B1
BR9808162B1 BRPI9808162-4A BR9808162A BR9808162B1 BR 9808162 B1 BR9808162 B1 BR 9808162B1 BR 9808162 A BR9808162 A BR 9808162A BR 9808162 B1 BR9808162 B1 BR 9808162B1
Authority
BR
Brazil
Prior art keywords
voice decoder
postprocessing method
postprocessing
decoder
voice
Prior art date
Application number
BRPI9808162-4A
Other languages
English (en)
Other versions
BR9808162A (pt
Inventor
Erik Ekudden
Roar Hagen
Bastiaan Kleijn
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 filed Critical
Publication of BR9808162A publication Critical patent/BR9808162A/pt
Publication of BR9808162B1 publication Critical patent/BR9808162B1/pt

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
    • G10L19/04—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
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L13/00—Speech synthesis; Text to speech systems
    • 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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
BRPI9808162-4A 1997-03-03 1998-02-17 método de pós-processamento para um decodificador de voz. BR9808162B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9700772A SE9700772D0 (sv) 1997-03-03 1997-03-03 A high resolution post processing method for a speech decoder
PCT/SE1998/000280 WO1998039768A1 (en) 1997-03-03 1998-02-17 A high resolution post processing method for a speech decoder

Publications (2)

Publication Number Publication Date
BR9808162A BR9808162A (pt) 2000-03-28
BR9808162B1 true BR9808162B1 (pt) 2009-05-05

Family

ID=20406015

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9808162-4A BR9808162B1 (pt) 1997-03-03 1998-02-17 método de pós-processamento para um decodificador de voz.

Country Status (12)

Country Link
US (1) US6138093A (pt)
EP (1) EP0965123B1 (pt)
JP (1) JP4274586B2 (pt)
KR (1) KR20000075936A (pt)
CN (1) CN1254433A (pt)
AU (1) AU6640998A (pt)
BR (1) BR9808162B1 (pt)
CA (1) CA2282693A1 (pt)
DE (1) DE69810754T2 (pt)
RU (1) RU2199157C2 (pt)
SE (1) SE9700772D0 (pt)
WO (1) WO1998039768A1 (pt)

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JP5562408B2 (ja) * 2009-04-20 2014-07-30 ドルビー ラボラトリーズ ライセンシング コーポレイション 指揮された補間およびデータの後処理
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Also Published As

Publication number Publication date
JP2001513916A (ja) 2001-09-04
KR20000075936A (ko) 2000-12-26
US6138093A (en) 2000-10-24
CN1254433A (zh) 2000-05-24
EP0965123B1 (en) 2003-01-15
WO1998039768A1 (en) 1998-09-11
AU6640998A (en) 1998-09-22
DE69810754D1 (de) 2003-02-20
BR9808162A (pt) 2000-03-28
RU2199157C2 (ru) 2003-02-20
SE9700772D0 (sv) 1997-03-03
EP0965123A1 (en) 1999-12-22
DE69810754T2 (de) 2003-08-21
JP4274586B2 (ja) 2009-06-10
CA2282693A1 (en) 1998-09-11

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Legal Events

Date Code Title Description
B15K Others concerning applications: alteration of classification

Free format text: ALTERADA A CLASSIFICACAO PARA INT.CL. 2008.01 G10L 19/02

Ipc: G10L 19/02 (2008.04)

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 30/06/2009, OBSERVADAS AS CONDICOES LEGAIS.

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 30.06.2019