BR112018012007A2 - aparelho e método para processamento de um sinal de áudio codificado - Google Patents

aparelho e método para processamento de um sinal de áudio codificado

Info

Publication number
BR112018012007A2
BR112018012007A2 BR112018012007A BR112018012007A BR112018012007A2 BR 112018012007 A2 BR112018012007 A2 BR 112018012007A2 BR 112018012007 A BR112018012007 A BR 112018012007A BR 112018012007 A BR112018012007 A BR 112018012007A BR 112018012007 A2 BR112018012007 A2 BR 112018012007A2
Authority
BR
Brazil
Prior art keywords
sampling rate
spectrum
audio signal
parameters
access unit
Prior art date
Application number
BR112018012007A
Other languages
English (en)
Other versions
BR112018012007B1 (pt
Inventor
Sascha Disch
Andreas Niedermeier
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of BR112018012007A2 publication Critical patent/BR112018012007A2/pt
Publication of BR112018012007B1 publication Critical patent/BR112018012007B1/pt

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
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/24—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being the cepstrum
    • 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
    • H04B1/69—Spread spectrum techniques

Abstract

a invenção se refere a um aparelho para processamento de um sinal de áudio codificado (100). o sinal de áudio (100) compreende uma sequência de unidades de acesso (100?), cada unidade de acesso compreendendo um sinal central (101) com uma primeira largura espectral e parâmetros descrevendo um espectro acima da primeira largura espectral. o aparelho compreende: um demultiplexador (1) para gerar, a partir de uma unidade de acesso (100?) do sinal de áudio codificado (100), o referido sinal central (101) e um conjunto dos referidos parâmetros (102), um amplificador da taxa de amostragem (2) para aumentar a taxa de amostragem do referido sinal central (101) da referida unidade de acesso (100?) e emitir um primeiro espectro com taxa de amostragem amplificada (103) e um segundo espectro com taxa de amostragem amplificada oportunamente consecutivo (103?), o primeiro espectro com taxa de amostragem amplificada (103) e o segundo espectro com taxa de amostragem amplificada (103?), ambos, tendo um mesmo conteúdo que o sinal central (101) e tendo uma segunda largura espectral sendo maior do que a primeira largura espectral do espectro central (101), um conversor de parâmetro (3) para converter parâmetros do referido conjunto de parâmetros (102) da referida unidade de acesso (100?) para obter parâmetros convertidos (104, 104?), e um processador de preenchimento de lacuna espectral (4) para processar o referido primeiro espectro com taxa de amostragem amplificada (103) e o referido segundo espectro com taxa de amostragem amplificada (103?), utilizando os referidos parâmetros convertidos (104). a invenção também se refere a um método correspondente.
BR112018012007-3A 2015-12-14 2016-12-08 Aparelho e método para processamento de um sinal de áudio codificado BR112018012007B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP15199851.5 2015-12-14
EP15199851.5A EP3182411A1 (en) 2015-12-14 2015-12-14 Apparatus and method for processing an encoded audio signal
PCT/EP2016/080331 WO2017102560A1 (en) 2015-12-14 2016-12-08 Apparatus and method for processing an encoded audio signal

Publications (2)

Publication Number Publication Date
BR112018012007A2 true BR112018012007A2 (pt) 2018-12-04
BR112018012007B1 BR112018012007B1 (pt) 2023-12-05

Family

ID=55024778

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018012007-3A BR112018012007B1 (pt) 2015-12-14 2016-12-08 Aparelho e método para processamento de um sinal de áudio codificado

Country Status (17)

Country Link
US (2) US11100939B2 (pt)
EP (2) EP3182411A1 (pt)
JP (1) JP6663996B2 (pt)
KR (2) KR20180095863A (pt)
CN (1) CN108701467B (pt)
AR (1) AR106970A1 (pt)
AU (1) AU2016373990B2 (pt)
BR (1) BR112018012007B1 (pt)
CA (1) CA3008388C (pt)
ES (1) ES2960963T3 (pt)
MX (1) MX2018007197A (pt)
MY (1) MY191239A (pt)
RU (1) RU2687872C1 (pt)
SG (1) SG11201805008YA (pt)
TW (1) TWI625722B (pt)
WO (1) WO2017102560A1 (pt)
ZA (1) ZA201804512B (pt)

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US10418957B1 (en) * 2018-06-29 2019-09-17 Amazon Technologies, Inc. Audio event detection

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Also Published As

Publication number Publication date
MX2018007197A (es) 2018-11-09
US20180293994A1 (en) 2018-10-11
US11862184B2 (en) 2024-01-02
ZA201804512B (en) 2019-05-29
US20210383818A1 (en) 2021-12-09
EP3391373C0 (en) 2023-09-27
AU2016373990B2 (en) 2019-08-29
KR20210054052A (ko) 2021-05-12
US11100939B2 (en) 2021-08-24
CA3008388A1 (en) 2017-06-22
EP3182411A1 (en) 2017-06-21
BR112018012007B1 (pt) 2023-12-05
TWI625722B (zh) 2018-06-01
CA3008388C (en) 2020-09-08
JP6663996B2 (ja) 2020-03-13
JP2019502948A (ja) 2019-01-31
KR20180095863A (ko) 2018-08-28
AU2016373990A1 (en) 2018-07-05
TW201730876A (zh) 2017-09-01
ES2960963T3 (es) 2024-03-07
CN108701467A (zh) 2018-10-23
EP3391373A1 (en) 2018-10-24
SG11201805008YA (en) 2018-07-30
AR106970A1 (es) 2018-03-07
CN108701467B (zh) 2023-12-08
MY191239A (en) 2022-06-10
WO2017102560A1 (en) 2017-06-22
EP3391373B1 (en) 2023-09-27
KR102625047B1 (ko) 2024-01-16
RU2687872C1 (ru) 2019-05-16

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B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements
B11N Dismissal: publication cancelled [chapter 11.14 patent gazette]

Free format text: ANULADA A PUBLICACAO CODIGO 11.2 NA RPI NO 2603 DE 24/11/2020 FACE A DEVOLUCAO DO PRAZO DE 60 DIAS PARA O CUMPRIMENTO DA EXIGENCIA.

B15V Prolongation of time limit allowed
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08G Application fees: restoration [chapter 8.7 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: 20 (VINTE) ANOS CONTADOS A PARTIR DE 08/12/2016, OBSERVADAS AS CONDICOES LEGAIS