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BR0311314A - Método e dispositivo para aperfeiçoamento da altura de som seletivo por frequência de fala sintetizada - Google Patents

Método e dispositivo para aperfeiçoamento da altura de som seletivo por frequência de fala sintetizada

Info

Publication number
BR0311314A
BR0311314A BR0311314-0A BR0311314A BR0311314A BR 0311314 A BR0311314 A BR 0311314A BR 0311314 A BR0311314 A BR 0311314A BR 0311314 A BR0311314 A BR 0311314A
Authority
BR
Brazil
Prior art keywords
post
sub
processing
band
sound signal
Prior art date
Application number
BR0311314-0A
Other languages
English (en)
Inventor
Bruno Bessette
Claude Laflamme
Milan Jelinek
Roch Lefebvre
Original Assignee
Voiceage Corp
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=29589086&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR0311314(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voiceage Corp filed Critical Voiceage Corp
Publication of BR0311314A publication Critical patent/BR0311314A/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
    • 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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
    • 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
    • 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
    • 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)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Stereophonic System (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Inorganic Fibers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Executing Machine-Instructions (AREA)

Abstract

"MéTODO E DISPOSITIVO PARA APERFEIçOAMENTO DA ALTURA DE SOM SELETIVO POR FREQuêNCIA DE FALA SINTETIZADA". A presente invenção refere-se a um método e dispositivo para processar posteriormente um sinal de som decodificado em vista de aperfeiçoar uma qualidade percebida deste sinal de som decodificado, o sinal de som decodificado é dividido em uma pluralidade de sinais de freq³ência de sub-banda e o processamento posterior é aplicado para pelo menos um dos sinais de freq³ência de sub-banda. Após o processamento posterior deste pelo menos um sinal de freq³ência de sub-banda, os sinais de freq³ência de sub-banda podem ser adicionados para produzir um sinal de som de saída decodificado processado posteriormente. Desta maneira, o processamento posterior pode ser localizado para uma sub-banda ou para sub-bandas desejadas deixando outras sub-bandas virtualmente inalteradas.
BR0311314-0A 2002-05-31 2003-05-30 Método e dispositivo para aperfeiçoamento da altura de som seletivo por frequência de fala sintetizada BR0311314A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002388352A CA2388352A1 (en) 2002-05-31 2002-05-31 A method and device for frequency-selective pitch enhancement of synthesized speed
PCT/CA2003/000828 WO2003102923A2 (en) 2002-05-31 2003-05-30 Methode and device for pitch enhancement of decoded speech

Publications (1)

Publication Number Publication Date
BR0311314A true BR0311314A (pt) 2005-02-15

Family

ID=29589086

Family Applications (2)

Application Number Title Priority Date Filing Date
BRPI0311314-0A BRPI0311314B1 (pt) 2002-05-31 2003-05-30 Método e dispositivo para aperfeiçoamento da altura de som seletivo por freqüência de fala sintetizada
BR0311314-0A BR0311314A (pt) 2002-05-31 2003-05-30 Método e dispositivo para aperfeiçoamento da altura de som seletivo por frequência de fala sintetizada

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BRPI0311314-0A BRPI0311314B1 (pt) 2002-05-31 2003-05-30 Método e dispositivo para aperfeiçoamento da altura de som seletivo por freqüência de fala sintetizada

Country Status (21)

Country Link
US (1) US7529660B2 (pt)
EP (1) EP1509906B1 (pt)
JP (1) JP4842538B2 (pt)
KR (1) KR101039343B1 (pt)
CN (1) CN100365706C (pt)
AT (1) ATE399361T1 (pt)
AU (1) AU2003233722B2 (pt)
BR (2) BRPI0311314B1 (pt)
CA (2) CA2388352A1 (pt)
CY (1) CY1110439T1 (pt)
DE (1) DE60321786D1 (pt)
DK (1) DK1509906T3 (pt)
ES (1) ES2309315T3 (pt)
MX (1) MXPA04011845A (pt)
MY (1) MY140905A (pt)
NO (1) NO332045B1 (pt)
NZ (1) NZ536237A (pt)
PT (1) PT1509906E (pt)
RU (1) RU2327230C2 (pt)
WO (1) WO2003102923A2 (pt)
ZA (1) ZA200409647B (pt)

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KR20050004897A (ko) 2005-01-12
JP2005528647A (ja) 2005-09-22
CA2483790C (en) 2011-12-20
US7529660B2 (en) 2009-05-05
BRPI0311314B1 (pt) 2018-02-14
JP4842538B2 (ja) 2011-12-21
AU2003233722B2 (en) 2009-06-04
ZA200409647B (en) 2006-06-28
ATE399361T1 (de) 2008-07-15
EP1509906B1 (en) 2008-06-25
DE60321786D1 (de) 2008-08-07
EP1509906A2 (en) 2005-03-02
CA2483790A1 (en) 2003-12-11
CA2388352A1 (en) 2003-11-30
RU2327230C2 (ru) 2008-06-20
PT1509906E (pt) 2008-11-13
KR101039343B1 (ko) 2011-06-08
NO332045B1 (no) 2012-06-11
CN1659626A (zh) 2005-08-24
AU2003233722A1 (en) 2003-12-19
DK1509906T3 (da) 2008-10-20
CN100365706C (zh) 2008-01-30
NZ536237A (en) 2007-05-31
CY1110439T1 (el) 2015-04-29
US20050165603A1 (en) 2005-07-28
WO2003102923A2 (en) 2003-12-11
WO2003102923A3 (en) 2004-09-30
MXPA04011845A (es) 2005-07-26
RU2004138291A (ru) 2005-05-27
NO20045717L (no) 2004-12-30
HK1078978A1 (en) 2006-03-24
ES2309315T3 (es) 2008-12-16

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