HRP20230094T1 - Ponovno odabiranje audio signala za kodiranje / dekodiranje s malim kašnjenjem - Google Patents
Ponovno odabiranje audio signala za kodiranje / dekodiranje s malim kašnjenjem Download PDFInfo
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- HRP20230094T1 HRP20230094T1 HRP20230094TT HRP20230094T HRP20230094T1 HR P20230094 T1 HRP20230094 T1 HR P20230094T1 HR P20230094T T HRP20230094T T HR P20230094TT HR P20230094 T HRP20230094 T HR P20230094T HR P20230094 T1 HRP20230094 T1 HR P20230094T1
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- 238000012952 Resampling Methods 0.000 title claims 3
- 230000005236 sound signal Effects 0.000 title 1
- 238000000034 method Methods 0.000 claims 12
- 230000003044 adaptive effect Effects 0.000 claims 5
- 238000004590 computer program Methods 0.000 claims 2
- 230000001934 delay Effects 0.000 claims 2
- 230000007774 longterm Effects 0.000 claims 2
- 239000000728 ammonium alginate Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 230000005284 excitation Effects 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N hydrochloric acid Substances Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 1
- 239000000737 potassium alginate Substances 0.000 claims 1
- 239000000661 sodium alginate Substances 0.000 claims 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
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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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
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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
- G10L19/02—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
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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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
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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
- 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
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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
- 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
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- 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
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- 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)
Claims (14)
1. Postupak za ponovno odabiranje audio frekvencijskog signala u kodiranju ili dekodiranju audio frekvencijskog signala, naznačen time što obuhvaća sljedeće etape po bloku signala koji se ponovo odabire:
- određivanje (E401) adaptivnim linearnim predviđanjem broja uzoraka budućeg signala, pri čemu je ovaj broj definiran u funkciji izabranog kašnjenja ponovnog odabiranja;
- konstrukciju (E402) jednog potpornog vektora ponovnog odabiranja iz najmanje uzoraka trenutnog signalnog bloka i iz određenih uzoraka budućeg signala;
- primjenu (E403) filtera za ponovno odabiranje na uzorke potpornog vektora za ponovno odabiranje.
2. Postupak prema patentnom zahtjevu 1, naznačen time što etapa određivanja pomoću adaptivnog linearnog predviđanja obuhvaća sljedeće etape:
- dobivanje (E506) koeficijenata jednog filtera za linearno predviđanje unaprijed određenog reda;
- dobivanje (E507) uzoraka budućeg signala primjenom dobivenog filtera za predviđanje na pobudni signal nulte vrijednosti.
3. Postupak prema patentnom zahtjevu 2, naznačen time što se koeficijenti filtera za linearno predviđanje dobivaju čitanjem parametara sačuvanih u etapi kodiranja ili dekodiranja.
4. Postupak prema patentnom zahtjevu 2, naznačen time što se koeficijenti filtera za linearno predviđanje dobivaju analizom barem iz uzoraka trenutnog bloka.
5. Postupak prema patentnom zahtjevu 1 naznačen time što se linearno predviđanje izvodi na audio frekvencijskom signalu na kome je izvršena obrada prednaglašavanja.
6. Postupak prema patentnom zahtjevu 1, naznačen time što je adaptivno linearno predviđanje je jedno predviđanje od sljedećih postupaka:
- kratkoročno linearno predviđanje;
- dugoročno linearno predviđanje;
- kombinacija kratkoročnog linearnog predviđanja i dugoročnog linearnog predviđanja;
- proces prikrivanja izbrisanog kadra.
7. Uređaj za ponovno odabiranje audio frekvencijskog signala u jednom koderu ili dekoderu audio frekvencijskog signala, naznačen time što sadrži:
- modul (301) za adaptivno linearno predviđanje sposoban da odredi, za signalni blok, broj uzoraka budućeg signala definiran u funkciji izabranog kašnjenja ponovnog odabiranja;
- modul (304) za konstruiranje potpornog vektora ponovnog odabiranja od barem uzoraka trenutnog signalnog bloka i od određenih uzoraka budućeg signala;
- jedan filter (305) za ponovno odabiranje primijenjen na uzorke potpornog vektora za ponovno odabiranje.
8. Uređaj prema patentnom zahtjevu 7, naznačen time što modul za adaptivno linearno predviđanje surađuje sa modulom (302b) za analizu predviđanjem uključenim u modul za kodiranje ili dekodiranje putem predviđanja kodera ili dekodera.
9. Koder audio frekvencijskog signala, naznačen time što sadrži najmanje jedan uređaj za ponovno odabiranje prema jednom od patentnih zahtjeva 7 ili 8.
10. Koder prema patentnom zahtjevu 9, naznačen time što sadrži uređaj za ponovno odabiranje koji koristi najmanje dva filtera za ponovno odabiranje koji imaju različita kašnjenja, gdje je najmanje jedan od filtara primijenjen u skladu sa postupkom iz patentnog zahtjeva 1, u kojem je određivanje broja uzoraka budućeg signala u funkciji razlike u kašnjenju dva korištena filtera za ponovno odabiranje.
11. Dekoder audio frekvencijskog signala, naznačen time što sadrži najmanje jedan uređaj za ponovno odabiranje prema jednom od patentnih zahtjeva 7 ili 8.
12. Dekoder prema patentnom zahtjevu 11, naznačen time što sadrži uređaj za ponovno odabiranje koji koristi najmanje dva filtera za ponovno odabiranje koji imaju različita kašnjenja, pri čemu je najmanje jedan od filtera primijenjen u skladu sa postupkom iz patentnog zahtjeva 1, u kome je određivanje broja uzoraka budućeg signala u funkciji razlike u kašnjenju dva korištena filtera za ponovno odabiranje.
13. Računalni program koji sadrži instrukcije koda za primjenu etapa postupka ponovnog odabiranja prema jednom od patentnih zahtjeva 1 do 6, kada ove instrukcije izvršava jedan procesor.
14. Medij za skladištenje kojeg može čitati procesor, na kojem je uskladišten računalni program koji sadrži instrukcije koda za izvršavanje etapa postupka ponovnog odabiranja prema jednom od patentnih zahtjeva 1 do 6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
| EP14796207.0A EP3053163B1 (fr) | 2013-09-30 | 2014-09-26 | Re-echantillonnage d'un signal audio pour un codage/decodage a bas retard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HRP20230094T1 true HRP20230094T1 (hr) | 2023-03-17 |
Family
ID=50101931
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HRP20230094TT HRP20230094T1 (hr) | 2013-09-30 | 2014-09-26 | Ponovno odabiranje audio signala za kodiranje / dekodiranje s malim kašnjenjem |
| HRP20230101TT HRP20230101T1 (hr) | 2013-09-30 | 2014-09-26 | Ponovno odabiranje audio signala za kodiranje/dekodiranje s malim kašnjenjem |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HRP20230101TT HRP20230101T1 (hr) | 2013-09-30 | 2014-09-26 | Ponovno odabiranje audio signala za kodiranje/dekodiranje s malim kašnjenjem |
Country Status (21)
| Country | Link |
|---|---|
| US (2) | US10403296B2 (hr) |
| EP (2) | EP3330964B1 (hr) |
| JP (2) | JP6559658B2 (hr) |
| KR (5) | KR102505501B1 (hr) |
| CN (2) | CN105684078B (hr) |
| BR (2) | BR122017018551B1 (hr) |
| DK (2) | DK3330964T3 (hr) |
| ES (2) | ES2934671T3 (hr) |
| FI (2) | FI3330964T3 (hr) |
| FR (1) | FR3011408A1 (hr) |
| HR (2) | HRP20230094T1 (hr) |
| HU (2) | HUE061442T2 (hr) |
| LT (2) | LT3053163T (hr) |
| MX (1) | MX355959B (hr) |
| PL (2) | PL3330964T3 (hr) |
| PT (2) | PT3053163T (hr) |
| RS (2) | RS63936B1 (hr) |
| RU (2) | RU2756042C2 (hr) |
| SI (2) | SI3053163T1 (hr) |
| WO (1) | WO2015044609A1 (hr) |
| ZA (1) | ZA201602919B (hr) |
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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 |
| PL3155617T3 (pl) * | 2014-06-10 | 2022-04-19 | Mqa Limited | Cyfrowa enkapsulacja sygnałów audio |
| 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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2013
- 2013-09-30 FR FR1359456A patent/FR3011408A1/fr active Pending
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2014
- 2014-09-26 SI SI201432007T patent/SI3053163T1/sl unknown
- 2014-09-26 KR KR1020217037252A patent/KR102505501B1/ko active IP Right Grant
- 2014-09-26 BR BR122017018551-9A patent/BR122017018551B1/pt active IP Right Grant
- 2014-09-26 DK DK17206561.7T patent/DK3330964T3/da active
- 2014-09-26 LT LTEPPCT/FR2014/052430T patent/LT3053163T/lt unknown
- 2014-09-26 MX MX2016003902A patent/MX355959B/es active IP Right Grant
- 2014-09-26 KR KR1020167011201A patent/KR20160061420A/ko active Application Filing
- 2014-09-26 WO PCT/FR2014/052430 patent/WO2015044609A1/fr active Application Filing
- 2014-09-26 SI SI201432006T patent/SI3330964T1/sl unknown
- 2014-09-26 PL PL17206561.7T patent/PL3330964T3/pl unknown
- 2014-09-26 HR HRP20230094TT patent/HRP20230094T1/hr unknown
- 2014-09-26 EP EP17206561.7A patent/EP3330964B1/fr active Active
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