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 atrasoInfo
- 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
- Authority
- BR
- Brazil
- Prior art keywords
- resampling
- decoding
- samples
- audio signal
- low delay
- Prior art date
Links
- 238000012952 Resampling Methods 0.000 title abstract 8
- 230000005236 sound signal Effects 0.000 title 1
- 238000000034 method Methods 0.000 abstract 3
- 230000003044 adaptive effect Effects 0.000 abstract 1
Classifications
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- 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.
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 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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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FR3011408A1 (fr) * | 2013-09-30 | 2015-04-03 | Orange | Re-echantillonnage d'un signal audio pour un codage/decodage a bas retard |
FR3015754A1 (fr) * | 2013-12-20 | 2015-06-26 | Orange | Re-echantillonnage d'un signal audio cadence a une frequence d'echantillonnage variable selon la trame |
KR102503347B1 (ko) * | 2014-06-10 | 2023-02-23 | 엠큐에이 리미티드 | 오디오 신호의 디지털 캡슐화 |
EP2980795A1 (en) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoding and decoding using a frequency domain processor, a time domain processor and a cross processor for initialization of the time domain processor |
EP2980794A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder and decoder using a frequency domain processor and a time domain processor |
FR3025923A1 (fr) * | 2014-09-12 | 2016-03-18 | Orange | Discrimination et attenuation de pre-echos dans un signal audionumerique |
JP6517924B2 (ja) * | 2015-04-13 | 2019-05-22 | 日本電信電話株式会社 | 線形予測符号化装置、方法、プログラム及び記録媒体 |
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US20210224024A1 (en) * | 2020-01-21 | 2021-07-22 | Audiowise Technology Inc. | Bluetooth audio system with low latency, and audio source and audio sink thereof |
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FR3015754A1 (fr) * | 2013-12-20 | 2015-06-26 | Orange | Re-echantillonnage d'un signal audio cadence a une frequence d'echantillonnage variable selon la trame |
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2013
- 2013-09-30 FR FR1359456A patent/FR3011408A1/fr active Pending
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2014
- 2014-09-26 PL PL17206561.7T patent/PL3330964T3/pl unknown
- 2014-09-26 EP EP14796207.0A patent/EP3053163B1/fr active Active
- 2014-09-26 BR BR112016006447-0A patent/BR112016006447B1/pt active IP Right Grant
- 2014-09-26 KR KR1020177024336A patent/KR102505502B1/ko active IP Right Grant
- 2014-09-26 FI FIEP14796207.0T patent/FI3053163T3/fi active
- 2014-09-26 US US15/025,138 patent/US10403296B2/en active Active
- 2014-09-26 MX MX2016003902A patent/MX355959B/es active IP Right Grant
- 2014-09-26 RS RS20230078A patent/RS63936B1/sr unknown
- 2014-09-26 DK DK17206561.7T patent/DK3330964T3/da active
- 2014-09-26 EP EP17206561.7A patent/EP3330964B1/fr active Active
- 2014-09-26 DK DK14796207.0T patent/DK3053163T3/da active
- 2014-09-26 LT LTEPPCT/FR2014/052430T patent/LT3053163T/lt unknown
- 2014-09-26 ES ES17206561T patent/ES2935337T3/es active Active
- 2014-09-26 CN CN201710730282.4A patent/CN107481726B/zh active Active
- 2014-09-26 HU HUE17206561A patent/HUE061430T2/hu unknown
- 2014-09-26 CN CN201480053813.5A patent/CN105684078B/zh active Active
- 2014-09-26 PL PL14796207.0T patent/PL3053163T3/pl unknown
- 2014-09-26 HR HRP20230094TT patent/HRP20230094T1/hr unknown
- 2014-09-26 RS RS20230080A patent/RS63937B1/sr unknown
- 2014-09-26 RU RU2016117073A patent/RU2679228C2/ru active
- 2014-09-26 HR HRP20230101TT patent/HRP20230101T1/hr unknown
- 2014-09-26 KR KR1020227046263A patent/KR102638785B1/ko active IP Right Grant
- 2014-09-26 SI SI201432007T patent/SI3053163T1/sl unknown
- 2014-09-26 HU HUE14796207A patent/HUE061442T2/hu unknown
- 2014-09-26 PT PT147962070T patent/PT3053163T/pt unknown
- 2014-09-26 KR KR1020217037251A patent/KR102514983B1/ko active IP Right Grant
- 2014-09-26 PT PT172065617T patent/PT3330964T/pt unknown
- 2014-09-26 RU RU2017144520A patent/RU2756042C2/ru active
- 2014-09-26 LT LTEP17206561.7T patent/LT3330964T/lt unknown
- 2014-09-26 SI SI201432006T patent/SI3330964T1/sl unknown
- 2014-09-26 BR BR122017018551-9A patent/BR122017018551B1/pt active IP Right Grant
- 2014-09-26 WO PCT/FR2014/052430 patent/WO2015044609A1/fr active Application Filing
- 2014-09-26 JP JP2016518091A patent/JP6559658B2/ja active Active
- 2014-09-26 KR KR1020217037252A patent/KR102505501B1/ko active IP Right Grant
- 2014-09-26 FI FIEP17206561.7T patent/FI3330964T3/fi active
- 2014-09-26 ES ES14796207T patent/ES2934671T3/es active Active
- 2014-09-26 KR KR1020167011201A patent/KR20160061420A/ko active Application Filing
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2016
- 2016-04-29 ZA ZA2016/02919A patent/ZA201602919B/en unknown
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2017
- 2017-07-27 JP JP2017145793A patent/JP6559741B2/ja active Active
- 2017-08-04 US US15/668,922 patent/US10566004B2/en active Active
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