MX357511B - Aparato y metodo para codificacion mejorada de objetos de audio espacial. - Google Patents
Aparato y metodo para codificacion mejorada de objetos de audio espacial.Info
- Publication number
- MX357511B MX357511B MX2016000851A MX2016000851A MX357511B MX 357511 B MX357511 B MX 357511B MX 2016000851 A MX2016000851 A MX 2016000851A MX 2016000851 A MX2016000851 A MX 2016000851A MX 357511 B MX357511 B MX 357511B
- Authority
- MX
- Mexico
- Prior art keywords
- audio
- information
- downmix
- processor
- audio object
- Prior art date
Links
Classifications
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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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- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/006—Systems employing more than two channels, e.g. quadraphonic in which a plurality of audio signals are transformed in a combination of audio signals and modulated signals, e.g. CD-4 systems
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/305—Electronic adaptation of stereophonic audio signals to reverberation of the listening space
-
- 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
- H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
-
- 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
-
- 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
-
- 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
- H04S2400/13—Aspects of volume control, not necessarily automatic, in stereophonic sound systems
-
- 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)
- Mathematical Physics (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- General Physics & Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Algebra (AREA)
- Stereophonic System (AREA)
Abstract
Un aparato para generar uno o más canales de salida de audio se proporciona. El aparato comprende un procesador de parámetros (110) para calcular información de mezclado y un procesador de downmix (120) para generar el uno o más canales de salida de audio. El procesador de downmix (120) se configura para recibir una señal de transporte de audio que comprende uno o más canales de transporte de audio. Una o más señales de canal de audio se mezclan dentro de la señal de transporte de audio, y uno o más señales de objeto de audio se mezclan dentro de la señal de transporte de audio, y en donde la cantidad del uno o más canales de transporte de audio es menor que la cantidad del una o más señales de canal de audio más la cantidad de la única o más señales de objeto de audio. El procesador de parámetros (110) se configura para recibir información de downmix lo que indica información sobre cómo la única o más señales de canal de audio y la única o más señales de objeto de audio se mezclan dentro del uno o más canales de transporte de audio, y en donde el procesador de parámetros (110) se configura para recibir información de covarianza. Más aún, el procesador de parámetros (110) se configura para calcular la información de mezclado dependiendo de la información de downmix y dependiendo de la información de covarianza. El procesador de downmix (120) se configura para generar el uno o más canales de salida de audio a partir de la señal de transporte de audio dependiendo de la información de mezclado. La información de covarianza indica una información de la diferencia de nivel para por lo menos una de la única o más señales de canal de audio y indica además una información de la diferencia de nivel para por lo menos uno del único o más señales de objeto de audio. Sin embargo, la información de covarianza no indica información de correlación para ningún par de una de la única o más señales de canal de audio y una de la única o más señales de objeto de audio.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13177357 | 2013-07-22 | ||
EP13177371 | 2013-07-22 | ||
EP20130177378 EP2830045A1 (en) | 2013-07-22 | 2013-07-22 | Concept for audio encoding and decoding for audio channels and audio objects |
EP13189290.3A EP2830050A1 (en) | 2013-07-22 | 2013-10-18 | Apparatus and method for enhanced spatial audio object coding |
PCT/EP2014/065427 WO2015011024A1 (en) | 2013-07-22 | 2014-07-17 | Apparatus and method for enhanced spatial audio object coding |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2016000851A MX2016000851A (es) | 2016-04-27 |
MX357511B true MX357511B (es) | 2018-07-12 |
Family
ID=49385153
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2016000914A MX355589B (es) | 2013-07-22 | 2014-07-16 | Aparato y metodo para realizar una mezcla descendente saoc de contenido de audio 3d. |
MX2016000851A MX357511B (es) | 2013-07-22 | 2014-07-17 | Aparato y metodo para codificacion mejorada de objetos de audio espacial. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2016000914A MX355589B (es) | 2013-07-22 | 2014-07-16 | Aparato y metodo para realizar una mezcla descendente saoc de contenido de audio 3d. |
Country Status (19)
Country | Link |
---|---|
US (4) | US9699584B2 (es) |
EP (4) | EP2830050A1 (es) |
JP (3) | JP6395827B2 (es) |
KR (2) | KR101774796B1 (es) |
CN (3) | CN105593929B (es) |
AU (2) | AU2014295270B2 (es) |
BR (2) | BR112016001244B1 (es) |
CA (2) | CA2918529C (es) |
ES (2) | ES2768431T3 (es) |
HK (1) | HK1225505A1 (es) |
MX (2) | MX355589B (es) |
MY (2) | MY176990A (es) |
PL (2) | PL3025333T3 (es) |
PT (1) | PT3025333T (es) |
RU (2) | RU2666239C2 (es) |
SG (2) | SG11201600460UA (es) |
TW (2) | TWI560700B (es) |
WO (2) | WO2015010999A1 (es) |
ZA (1) | ZA201600984B (es) |
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