BR0315216A - Codec de banda larga de múltiplos-dados de taxa de bit variável controlado por fonte, método para codificar digitalmente o som usando o codec vmr-wb, e, método para traduzir um quadro de sinal amr-wb em um quadro de sinal vmr-wb - Google Patents

Codec de banda larga de múltiplos-dados de taxa de bit variável controlado por fonte, método para codificar digitalmente o som usando o codec vmr-wb, e, método para traduzir um quadro de sinal amr-wb em um quadro de sinal vmr-wb

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Publication number
BR0315216A
BR0315216A BR0315216-2A BR0315216A BR0315216A BR 0315216 A BR0315216 A BR 0315216A BR 0315216 A BR0315216 A BR 0315216A BR 0315216 A BR0315216 A BR 0315216A
Authority
BR
Brazil
Prior art keywords
codec
vmr
signal frame
amr
wideband
Prior art date
Application number
BR0315216-2A
Other languages
English (en)
Inventor
Milan Jelinek
Redman Salami
Original Assignee
Nokia 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
Application filed by Nokia Corp filed Critical Nokia Corp
Publication of BR0315216A publication Critical patent/BR0315216A/pt

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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
    • G10L19/04—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
    • G10L19/16—Vocoder architecture
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/93—Discriminating between voiced and unvoiced parts of speech signals
    • 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
    • G10L19/012—Comfort noise or silence coding

Abstract

"CODEC DE BANDA LARGA DE MúLTIPLOS-MODOS DE TAXA DE BIT VARIáVEL CONTROLADO POR FONTE, MéTODO PARA CODIFICAR DIGITALMENTE O SOM USANDO O CODEC VMR-WB, E, MéTODO PARA TRADUZIR UM QUADRO DE SINAL AMR-WB EM UM QUADRO DE SINAL VMR-WB". Codec de fala de banda larga de múltiplos-modos de taxa de bit variável controlado por fonte (VMR-WB) possui um modo de operação que é interoperável com o codec de banda larga adaptativo de múltiplas-taxas (AMR-WB), o codec compreende: ao menos um modo de taxa-máxima interoperável (I-FR, Interoperable Full Rate), possuindo a primeira estrutura de alocação de bit baseada em um dos tipos de codificação do codec AMR-WB; e em ao menos um tipo de codificação do gerador de ruído de conforto (CNG, Comfort Noise Generator) para codificar o quadro de fala inativo possuindo uma segunda estrutura de alocação de bit baseada no tipo de codificação ATUALIZAR-SID AMR-WB. Métodos são também fornecidos para: i) codificar digitalmente o som usando o codec de fala de banda larga de múltiplos-modos de taxa de bit variável controlado por fonte (VMR-WB) para interoperar com o codec de banda larga adaptativo de múltiplas-taxas (AMR-WB); ii) traduzir o quadro de sinal do codec de fala de banda larga de múltiplos-modos de taxa de bit variável (VMR-WB) para o quadro de sinal de fala de banda larga adaptativo de múltiplas-taxas (AMR-WB); iii) traduzir o quadro de sinal de fala de banda larga adaptativo de múltiplas-taxas (AMR-WB) para o quadro de sinal de fala de banda larga de múltiplos-modos de taxa de bit variável (VMR-WB).
BR0315216-2A 2002-10-11 2003-10-10 Codec de banda larga de múltiplos-dados de taxa de bit variável controlado por fonte, método para codificar digitalmente o som usando o codec vmr-wb, e, método para traduzir um quadro de sinal amr-wb em um quadro de sinal vmr-wb BR0315216A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41766702P 2002-10-11 2002-10-11
PCT/CA2003/001572 WO2004034376A2 (en) 2002-10-11 2003-10-10 Methods for interoperation between adaptive multi-rate wideband (amr-wb) and multi-mode variable bit-rate wideband (wmr-wb) speech codecs

Publications (1)

Publication Number Publication Date
BR0315216A true BR0315216A (pt) 2005-08-16

Family

ID=32094059

Family Applications (2)

Application Number Title Priority Date Filing Date
BR0315179-4A BR0315179A (pt) 2002-10-11 2003-10-09 Método e dispositivo para codificar um sinal de fala amostrado compreendendo quadros de fala
BR0315216-2A BR0315216A (pt) 2002-10-11 2003-10-10 Codec de banda larga de múltiplos-dados de taxa de bit variável controlado por fonte, método para codificar digitalmente o som usando o codec vmr-wb, e, método para traduzir um quadro de sinal amr-wb em um quadro de sinal vmr-wb

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BR0315179-4A BR0315179A (pt) 2002-10-11 2003-10-09 Método e dispositivo para codificar um sinal de fala amostrado compreendendo quadros de fala

Country Status (15)

Country Link
US (1) US7203638B2 (pt)
EP (2) EP1550108A2 (pt)
JP (2) JP2006502426A (pt)
KR (2) KR100711280B1 (pt)
CN (2) CN1703736A (pt)
AT (1) ATE505786T1 (pt)
AU (2) AU2003278013A1 (pt)
BR (2) BR0315179A (pt)
CA (2) CA2501368C (pt)
DE (1) DE60336744D1 (pt)
EG (1) EG23923A (pt)
ES (1) ES2361154T3 (pt)
MY (2) MY134085A (pt)
RU (2) RU2331933C2 (pt)
WO (2) WO2004034379A2 (pt)

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AU2003278013A1 (en) 2004-05-04
RU2005113877A (ru) 2005-10-10
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MY138212A (en) 2009-05-29
AU2003278014A8 (en) 2004-05-04
EP1554718B1 (en) 2011-04-13
CA2501369A1 (en) 2004-04-22
BR0315179A (pt) 2005-08-23
RU2351907C2 (ru) 2009-04-10
CA2501368C (en) 2013-06-25
US7203638B2 (en) 2007-04-10
WO2004034376A2 (en) 2004-04-22
EP1554718A2 (en) 2005-07-20
CN1703737B (zh) 2013-05-15
JP2006502427A (ja) 2006-01-19
ES2361154T3 (es) 2011-06-14
ATE505786T1 (de) 2011-04-15
CA2501368A1 (en) 2004-04-22
AU2003278013A8 (en) 2004-05-04
KR100711280B1 (ko) 2007-04-25
CN1703737A (zh) 2005-11-30
EP1550108A2 (en) 2005-07-06
US20050267746A1 (en) 2005-12-01
MY134085A (en) 2007-11-30
KR20050049538A (ko) 2005-05-25
WO2004034376A3 (en) 2004-06-10
DE60336744D1 (de) 2011-05-26
CN1703736A (zh) 2005-11-30
WO2004034379A3 (en) 2004-12-23
AU2003278014A1 (en) 2004-05-04
KR20050049537A (ko) 2005-05-25
RU2331933C2 (ru) 2008-08-20
RU2005113876A (ru) 2005-10-10
EG23923A (en) 2007-12-30

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