MX2016000908A - Aparato y metodo para la codificacion de metadatos de objetos con bajo retardo. - Google Patents
Aparato y metodo para la codificacion de metadatos de objetos con bajo retardo.Info
- Publication number
- MX2016000908A MX2016000908A MX2016000908A MX2016000908A MX2016000908A MX 2016000908 A MX2016000908 A MX 2016000908A MX 2016000908 A MX2016000908 A MX 2016000908A MX 2016000908 A MX2016000908 A MX 2016000908A MX 2016000908 A MX2016000908 A MX 2016000908A
- Authority
- MX
- Mexico
- Prior art keywords
- metadata
- signals
- reconstructed
- processed
- decoder
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
- H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation of the pseudo five- or more-channel type, e.g. virtual surround
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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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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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
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/03—Application of parametric coding in stereophonic audio systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Se proporciona un aparato (100) para generar uno o más canales de audio. El aparato comprende un descodificador de metadatos (110) para generar una o más señales de metadatos reconstruidas (x1´,...,xN´) de una o más señales de metadatos procesadas (z1,...,zN) dependiendo de una señal de control (b), en donde cada una de una o más señales de metadatos reconstruidas (x1´,...,xN´) indica información asociada con una señal de objetos de audio de una o más señales de objeto de audio, caracterizado porque el descodificador de metadatos (110) se configura para generar una o más señales de metadatos reconstruidas (x1´,...,xN´) al determinar una pluralidad de muestras de metadatos reconstruidas (x1´ (n),...,xN´ (n)) para cada una de una o más señales de metadatos reconstruidas (x1´ ,...,xN´) Además, el aparato comprende un generador de canal de audio (120) para generar uno o más canales de audio dependiendo de una o más señales de objeto de audio y dependiendo de una o más señales de metadatos reconstruidas (x1´,...,xN´). El descodificador de metadatos (110) se configura para recibir una pluralidad de muestras de metadatos procesadas (z1(n),...,zN(n)) de cada una de una o más señales de metadatos procesadas (z1,...,zN). Además, el descodificador de metadatos (110) se configura para recibir la señal de control (b). Asimismo, el descodificador de metadatos (110) se configura para determinar cada muestra de metadatos reconstruida (xi´ (n)) de la pluralidad de muestras de metadatos reconstruidas (xi´ (1),... xi´ (n-1), xi´ (n)) de cada señal de metadatos reconstruida (xi´) de una o más señales de metadatos reconstruidas (x1´,...,xN´), de modo que cuando la señal de control (b) indica un primer estado (b(n)=0), la muestra de metadatos reconstruida (xi´ (n)) es una suma de una de las muestras de metadatos procesadas (z, (n)) de una de una o más señales de metadatos procesadas (zi) y otra muestra de metadatos procesada ya generada (xi´ (n-1)) de la señal de metadatos reconstruida (xi´), y de modo que cuando la señal de control indica un segundo estado (b(n)=1) que es diferente al primer estado, la muestra de metadatos reconstruida (xi´ (n)) es una (zi(n)) de las muestras de metadatos procesadas (zi(1),...,zi(n)) de una (zi) de una o más señales de metadatos procesadas (z1,...,zN). Además, se proporciona un aparato (250) para generar información de audio codificada.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20130177378 EP2830045A1 (en) | 2013-07-22 | 2013-07-22 | Concept for audio encoding and decoding for audio channels and audio objects |
| EP13177365 | 2013-07-22 | ||
| EP13177367 | 2013-07-22 | ||
| EP13189279.6A EP2830047A1 (en) | 2013-07-22 | 2013-10-18 | Apparatus and method for low delay object metadata coding |
| PCT/EP2014/065283 WO2015010996A1 (en) | 2013-07-22 | 2014-07-16 | Apparatus and method for low delay object metadata coding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX2016000908A true MX2016000908A (es) | 2016-05-05 |
| MX357577B MX357577B (es) | 2018-07-16 |
Family
ID=49385151
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2016000907A MX357576B (es) | 2013-07-22 | 2014-07-16 | Aparato y metodo para la codificacion eficiente de metadatos de objetos. |
| MX2016000908A MX357577B (es) | 2013-07-22 | 2014-07-16 | Aparato y metodo para la codificacion de metadatos de objetos con bajo retardo. |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2016000907A MX357576B (es) | 2013-07-22 | 2014-07-16 | Aparato y metodo para la codificacion eficiente de metadatos de objetos. |
Country Status (16)
| Country | Link |
|---|---|
| US (8) | US9788136B2 (es) |
| EP (4) | EP2830047A1 (es) |
| JP (2) | JP6239109B2 (es) |
| KR (5) | KR20230054741A (es) |
| CN (3) | CN105474309B (es) |
| AU (2) | AU2014295267B2 (es) |
| BR (2) | BR112016001140B1 (es) |
| CA (2) | CA2918860C (es) |
| ES (1) | ES2881076T3 (es) |
| MX (2) | MX357576B (es) |
| MY (1) | MY176994A (es) |
| RU (2) | RU2672175C2 (es) |
| SG (2) | SG11201600471YA (es) |
| TW (1) | TWI560703B (es) |
| WO (2) | WO2015010996A1 (es) |
| ZA (2) | ZA201601045B (es) |
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| EP2830051A3 (en) | 2013-07-22 | 2015-03-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder, audio decoder, methods and computer program using jointly encoded residual signals |
| EP2830045A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Concept for audio encoding and decoding for audio channels and audio objects |
| EP2830047A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for low delay object metadata coding |
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