BR112017002947A2 - conceito para comutação de taxas de amostragem em dispositivos de processamento de áudio - Google Patents
conceito para comutação de taxas de amostragem em dispositivos de processamento de áudioInfo
- Publication number
- BR112017002947A2 BR112017002947A2 BR112017002947A BR112017002947A BR112017002947A2 BR 112017002947 A2 BR112017002947 A2 BR 112017002947A2 BR 112017002947 A BR112017002947 A BR 112017002947A BR 112017002947 A BR112017002947 A BR 112017002947A BR 112017002947 A2 BR112017002947 A2 BR 112017002947A2
- Authority
- BR
- Brazil
- Prior art keywords
- audio
- decoded audio
- memory state
- synthesizing
- parameters
- Prior art date
Links
- 230000015654 memory Effects 0.000 abstract 8
- 230000002194 synthesizing effect Effects 0.000 abstract 4
- 238000005070 sampling Methods 0.000 abstract 3
- 238000012952 Resampling Methods 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000003786 synthesis reaction Methods 0.000 abstract 2
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
- 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
- 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
- G10L19/04—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
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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
- G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
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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
- G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
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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
- G10L19/26—Pre-filtering or post-filtering
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0002—Codebook adaptations
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
dispositivo decodificador de áudio para um fluxo contínuo de dados, preditivo para produção de uma estrutura de áudio decodificado, em que compreende um decodificador de parâmetro para produção de um ou mais parâmetro(s) de áudio para a estrutura de áudio decodificado e em que o decodificador preditivo compreende um dispositivo do filtro de síntese para produção da estrutura de áudio decodificado; um dispositivo de memória, em que cada uma das memórias é configurada para armazenar um estado de memória para a estrutura de áudio decodificado, em que o estado de memória para a estrutura de áudio é utilizado pelo dispositivo do filtro de síntese para sintetização de um ou mais dos parâmetros de áudio para a estrutura de áudio decodificado; e um dispositivo de reamostragem para determinar o estado de memória para sintetização de um ou mais dos parâmetros de áudio para a estrutura de áudio decodificado, que tem uma taxa de amostragem, para uma ou mais das referidas memórias pela reamostragem de um estado de memória anterior para sintetização dos parâmetros de áudio para uma estrutura de áudio decodificado anterior, que tem uma taxa de amostragem anterior sendo diferente da taxa de amostragem da estrutura de áudio decodificado, para as referidas memórias e para armazenar o estado de memória para sintetização de parâmetros de áudio para a estrutura de áudio decodificado.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14181307.1 | 2014-08-18 | ||
| EP14181307.1A EP2988300A1 (en) | 2014-08-18 | 2014-08-18 | Switching of sampling rates at audio processing devices |
| PCT/EP2015/068778 WO2016026788A1 (en) | 2014-08-18 | 2015-08-14 | Concept for switching of sampling rates at audio processing devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BR112017002947A2 true BR112017002947A2 (pt) | 2017-12-05 |
| BR112017002947B1 BR112017002947B1 (pt) | 2021-02-17 |
Family
ID=51352467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112017002947-2A BR112017002947B1 (pt) | 2014-08-18 | 2015-08-14 | conceito para comutação de taxas de amostragem em dispositivos de processamento de áudio |
Country Status (18)
| Country | Link |
|---|---|
| US (3) | US10783898B2 (pt) |
| EP (4) | EP2988300A1 (pt) |
| JP (1) | JP6349458B2 (pt) |
| KR (1) | KR102120355B1 (pt) |
| CN (2) | CN113724719B (pt) |
| AR (1) | AR101578A1 (pt) |
| AU (1) | AU2015306260B2 (pt) |
| BR (1) | BR112017002947B1 (pt) |
| CA (1) | CA2957855C (pt) |
| ES (2) | ES2828949T3 (pt) |
| MX (1) | MX360557B (pt) |
| MY (1) | MY187283A (pt) |
| PL (2) | PL3183729T3 (pt) |
| PT (1) | PT3183729T (pt) |
| RU (1) | RU2690754C2 (pt) |
| SG (1) | SG11201701267XA (pt) |
| TW (1) | TWI587291B (pt) |
| WO (1) | WO2016026788A1 (pt) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2677453C2 (ru) | 2014-04-17 | 2019-01-16 | Войсэйдж Корпорейшн | Способы, кодер и декодер для линейного прогнозирующего кодирования и декодирования звуковых сигналов после перехода между кадрами, имеющими различные частоты дискретизации |
| EP2988300A1 (en) * | 2014-08-18 | 2016-02-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Switching of sampling rates at audio processing devices |
| WO2019091573A1 (en) | 2017-11-10 | 2019-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters |
| WO2019091576A1 (en) | 2017-11-10 | 2019-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits |
| EP3483882A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Controlling bandwidth in encoders and/or decoders |
| EP3483884A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Signal filtering |
| EP3483886A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Selecting pitch lag |
| EP3483878A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio decoder supporting a set of different loss concealment tools |
| EP3483880A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Temporal noise shaping |
| EP3483879A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Analysis/synthesis windowing function for modulated lapped transformation |
| EP3483883A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio coding and decoding with selective postfiltering |
| US11601483B2 (en) * | 2018-02-14 | 2023-03-07 | Genband Us Llc | System, methods, and computer program products for selecting codec parameters |
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| JPS60224341A (ja) * | 1984-04-20 | 1985-11-08 | Nippon Telegr & Teleph Corp <Ntt> | 音声符号化方法 |
| US5956674A (en) * | 1995-12-01 | 1999-09-21 | Digital Theater Systems, Inc. | Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels |
| JP3134817B2 (ja) * | 1997-07-11 | 2001-02-13 | 日本電気株式会社 | 音声符号化復号装置 |
| US7446774B1 (en) * | 1998-11-09 | 2008-11-04 | Broadcom Corporation | Video and graphics system with an integrated system bridge controller |
| CN1257270A (zh) * | 1998-11-10 | 2000-06-21 | Tdk株式会社 | 数字音频记录和再现装置 |
| MXPA01010913A (es) * | 1999-04-30 | 2002-05-06 | Thomson Licensing Sa | Metodo y aparato para procesar datos de audio digitalmente codificados. |
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| JP2004023598A (ja) * | 2002-06-19 | 2004-01-22 | Matsushita Electric Ind Co Ltd | 音声データ記録再生装置 |
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| US9037456B2 (en) * | 2011-07-26 | 2015-05-19 | Google Technology Holdings LLC | Method and apparatus for audio coding and decoding |
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| US9043201B2 (en) * | 2012-01-03 | 2015-05-26 | Google Technology Holdings LLC | Method and apparatus for processing audio frames to transition between different codecs |
| FR3013496A1 (fr) * | 2013-11-15 | 2015-05-22 | Orange | Transition d'un codage/decodage par transformee vers un codage/decodage predictif |
| RU2677453C2 (ru) * | 2014-04-17 | 2019-01-16 | Войсэйдж Корпорейшн | Способы, кодер и декодер для линейного прогнозирующего кодирования и декодирования звуковых сигналов после перехода между кадрами, имеющими различные частоты дискретизации |
| FR3023646A1 (fr) * | 2014-07-11 | 2016-01-15 | Orange | Mise a jour des etats d'un post-traitement a une frequence d'echantillonnage variable selon la trame |
| EP2988300A1 (en) * | 2014-08-18 | 2016-02-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Switching of sampling rates at audio processing devices |
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2014
- 2014-08-18 EP EP14181307.1A patent/EP2988300A1/en not_active Withdrawn
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2015
- 2015-08-14 EP EP20185071.6A patent/EP3739580B1/en active Active
- 2015-08-14 CN CN202110649437.8A patent/CN113724719B/zh active Active
- 2015-08-14 BR BR112017002947-2A patent/BR112017002947B1/pt active IP Right Grant
- 2015-08-14 CN CN201580044544.0A patent/CN106663443B/zh active Active
- 2015-08-14 AU AU2015306260A patent/AU2015306260B2/en active Active
- 2015-08-14 ES ES15750069T patent/ES2828949T3/es active Active
- 2015-08-14 RU RU2017108839A patent/RU2690754C2/ru active
- 2015-08-14 WO PCT/EP2015/068778 patent/WO2016026788A1/en active Application Filing
- 2015-08-14 KR KR1020177006373A patent/KR102120355B1/ko active IP Right Grant
- 2015-08-14 PL PL15750069T patent/PL3183729T3/pl unknown
- 2015-08-14 MY MYPI2017000248A patent/MY187283A/en unknown
- 2015-08-14 SG SG11201701267XA patent/SG11201701267XA/en unknown
- 2015-08-14 PT PT157500695T patent/PT3183729T/pt unknown
- 2015-08-14 CA CA2957855A patent/CA2957855C/en active Active
- 2015-08-14 EP EP24151606.1A patent/EP4328908A3/en active Pending
- 2015-08-14 JP JP2017510309A patent/JP6349458B2/ja active Active
- 2015-08-14 ES ES20185071T patent/ES2980944T3/es active Active
- 2015-08-14 MX MX2017002108A patent/MX360557B/es active IP Right Grant
- 2015-08-14 PL PL20185071.6T patent/PL3739580T3/pl unknown
- 2015-08-14 TW TW104126634A patent/TWI587291B/zh active
- 2015-08-14 EP EP15750069.5A patent/EP3183729B1/en active Active
- 2015-08-18 AR ARP150102651A patent/AR101578A1/es active IP Right Grant
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2017
- 2017-02-10 US US15/430,178 patent/US10783898B2/en active Active
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2020
- 2020-08-18 US US16/996,671 patent/US11443754B2/en active Active
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2022
- 2022-08-05 US US17/882,363 patent/US11830511B2/en active Active
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| 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 14/08/2015, OBSERVADAS AS CONDICOES LEGAIS. |