BR112016006447A2 - reamostragem de um sinal de áudio para uma codificação/decodificação de baixo atraso - Google Patents

reamostragem de um sinal de áudio para uma codificação/decodificação de baixo atraso

Info

Publication number
BR112016006447A2
BR112016006447A2 BR112016006447A BR112016006447A BR112016006447A2 BR 112016006447 A2 BR112016006447 A2 BR 112016006447A2 BR 112016006447 A BR112016006447 A BR 112016006447A BR 112016006447 A BR112016006447 A BR 112016006447A BR 112016006447 A2 BR112016006447 A2 BR 112016006447A2
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BR
Brazil
Prior art keywords
resampling
decoding
samples
audio signal
low delay
Prior art date
Application number
BR112016006447A
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English (en)
Other versions
BR112016006447B1 (pt
Inventor
Kovesi Balazs
Ragot Stéphane
Original Assignee
Orange
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 Orange filed Critical Orange
Priority to BR122017018551-9A priority Critical patent/BR122017018551B1/pt
Publication of BR112016006447A2 publication Critical patent/BR112016006447A2/pt
Publication of BR112016006447B1 publication Critical patent/BR112016006447B1/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
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/02—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 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • 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
    • G10L19/16—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • H03H17/0621—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

a invenção refere-se a um processo de reamostragem de um sinal de audiofrequência em uma codificação ou decodificação de sinal de audiofrequência. o processo é tal que compreende as etapas seguintes por bloco de sinal para reamostrar: - determinação (e401) por predição linear adaptativa de um número de amostras de sinal futuro, esse número sendo definido em função de um atraso de reamostragem escolhido; - construção (e402) de um vetor de suporte de reamostragem a partir pelo menos das amostras do bloco corrente e das amostras determinadas de sinal futuro; - aplicação (e403) de um filtro de reamostragem sobre as amostras do vetor de suporte de reamostragem. a invenção refere-se também a um dispositivo de reamostragem implementando o processo descrito, um codificador e um decodificador compreendendo pelo menos um dispositivo.
BR112016006447-0A 2013-09-30 2014-09-26 Método, e dispositivo para reamostragem de um sinal de audiofrequência em um codificador ou decodificador de sinal de audiofrequência. BR112016006447B1 (pt)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR122017018551-9A BR122017018551B1 (pt) 2013-09-30 2014-09-26 Método, e, dispositivo para reamostrar um sinal de audiofrequência em um codificador ou um decodificador de sinal de audiofrequência

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1359456 2013-09-30
FR1359456A FR3011408A1 (fr) 2013-09-30 2013-09-30 Re-echantillonnage d'un signal audio pour un codage/decodage a bas retard
PCT/FR2014/052430 WO2015044609A1 (fr) 2013-09-30 2014-09-26 Re-echantillonnage d'un signal audio pour un codage/decodage a bas retard

Publications (2)

Publication Number Publication Date
BR112016006447A2 true BR112016006447A2 (pt) 2017-08-01
BR112016006447B1 BR112016006447B1 (pt) 2021-12-28

Family

ID=50101931

Family Applications (2)

Application Number Title Priority Date Filing Date
BR112016006447-0A BR112016006447B1 (pt) 2013-09-30 2014-09-26 Método, e dispositivo para reamostragem de um sinal de audiofrequência em um codificador ou decodificador de sinal de audiofrequência.
BR122017018551-9A BR122017018551B1 (pt) 2013-09-30 2014-09-26 Método, e, dispositivo para reamostrar um sinal de audiofrequência em um codificador ou um decodificador de sinal de audiofrequência

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BR122017018551-9A BR122017018551B1 (pt) 2013-09-30 2014-09-26 Método, e, dispositivo para reamostrar um sinal de audiofrequência em um codificador ou um decodificador de sinal de audiofrequência

Country Status (21)

Country Link
US (2) US10403296B2 (pt)
EP (2) EP3053163B1 (pt)
JP (2) JP6559658B2 (pt)
KR (5) KR102505502B1 (pt)
CN (2) CN107481726B (pt)
BR (2) BR112016006447B1 (pt)
DK (2) DK3330964T3 (pt)
ES (2) ES2935337T3 (pt)
FI (2) FI3053163T3 (pt)
FR (1) FR3011408A1 (pt)
HR (2) HRP20230094T1 (pt)
HU (2) HUE061430T2 (pt)
LT (2) LT3053163T (pt)
MX (1) MX355959B (pt)
PL (2) PL3330964T3 (pt)
PT (2) PT3053163T (pt)
RS (2) RS63936B1 (pt)
RU (2) RU2679228C2 (pt)
SI (2) SI3053163T1 (pt)
WO (1) WO2015044609A1 (pt)
ZA (1) ZA201602919B (pt)

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Also Published As

Publication number Publication date
KR102514983B1 (ko) 2023-03-29
FR3011408A1 (fr) 2015-04-03
EP3053163A1 (fr) 2016-08-10
US20170372714A1 (en) 2017-12-28
RU2679228C2 (ru) 2019-02-06
ES2935337T3 (es) 2023-03-06
MX2016003902A (es) 2016-06-17
MX355959B (es) 2018-05-07
FI3330964T3 (fi) 2023-02-22
PL3330964T3 (pl) 2023-04-11
RS63937B1 (sr) 2023-02-28
LT3053163T (lt) 2023-01-10
HUE061442T2 (hu) 2023-06-28
RS63936B1 (sr) 2023-02-28
KR20210142766A (ko) 2021-11-25
KR20160061420A (ko) 2016-05-31
KR102638785B1 (ko) 2024-02-21
US20160232907A1 (en) 2016-08-11
DK3053163T3 (da) 2023-01-16
KR20210142765A (ko) 2021-11-25
HRP20230101T1 (hr) 2023-03-17
PT3330964T (pt) 2023-01-20
JP6559658B2 (ja) 2019-08-14
BR112016006447B1 (pt) 2021-12-28
CN107481726B (zh) 2021-07-30
PL3053163T3 (pl) 2023-04-11
ZA201602919B (en) 2019-04-24
US10566004B2 (en) 2020-02-18
WO2015044609A1 (fr) 2015-04-02
BR122017018551B1 (pt) 2022-03-03
US10403296B2 (en) 2019-09-03
CN107481726A (zh) 2017-12-15
DK3330964T3 (da) 2023-02-06
JP2016541004A (ja) 2016-12-28
SI3330964T1 (sl) 2023-01-31
KR102505502B1 (ko) 2023-03-03
RU2017144520A (ru) 2019-02-15
RU2016117073A (ru) 2017-11-10
RU2016117073A3 (pt) 2018-07-06
HRP20230094T1 (hr) 2023-03-17
RU2017144520A3 (pt) 2021-04-09
JP2018025783A (ja) 2018-02-15
EP3330964B1 (fr) 2022-11-09
KR20230009516A (ko) 2023-01-17
RU2756042C2 (ru) 2021-09-24
EP3053163B1 (fr) 2022-11-09
FI3053163T3 (fi) 2023-03-01
JP6559741B2 (ja) 2019-08-14
EP3330964A1 (fr) 2018-06-06
ES2934671T3 (es) 2023-02-23
KR102505501B1 (ko) 2023-03-03
KR20170103027A (ko) 2017-09-12
LT3330964T (lt) 2023-01-10
PT3053163T (pt) 2023-01-19
CN105684078B (zh) 2020-03-27
SI3053163T1 (sl) 2023-01-31
HUE061430T2 (hu) 2023-06-28
CN105684078A (zh) 2016-06-15

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