MX2015004205A - Codificador, descodificador y métodos para codificación espacial de objetos de audio de multiresolución retrocompatible. - Google Patents
Codificador, descodificador y métodos para codificación espacial de objetos de audio de multiresolución retrocompatible.Info
- Publication number
- MX2015004205A MX2015004205A MX2015004205A MX2015004205A MX2015004205A MX 2015004205 A MX2015004205 A MX 2015004205A MX 2015004205 A MX2015004205 A MX 2015004205A MX 2015004205 A MX2015004205 A MX 2015004205A MX 2015004205 A MX2015004205 A MX 2015004205A
- Authority
- MX
- Mexico
- Prior art keywords
- information
- parametric
- audio
- decoder
- mixing
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 abstract 3
Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
Abstract
Un descodificador para generar una señal de audio no mezclado que comprende una pluralidad de canales de audio no mezclados se proporciona. Además, se proporciona un codificador y una señal de audio codificada. El descodificador comprende un determinador de información de no mezclado para determinar información de no mezclado al recibir la primera información secundaria paramétrica sobre al menos una señal de objeto de audio y la segunda información secundaria paramétrica sobre al menos una señal de objeto de audio, en donde la resolución de frecuencia de la segunda información secundaria paramétrica es superior a la resolución de frecuencia de la primera información secundaria paramétrica. Además, el descodificador comprende un módulo de no mezclado para aplicar la información de no mezclado en un señal de mezcla descendente, que indica una mezcla descendente de al menos una señal de objeto de audio, para obtener una señal de audio no mezclado que comprende la pluralidad de canales de audio no mezclado. El determinador de información de no mezclado se configura para determinar la información de no mezclado al modificar la primera información paramétrica y la segunda información paramétrica para obtener información paramétrica modificada, de manera que la información paramétrica modificada tenga una resolución de frecuencia la cual es superior a la primera resolución de frecuencia.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261710128P | 2012-10-05 | 2012-10-05 | |
EP13167485.5A EP2717261A1 (en) | 2012-10-05 | 2013-05-13 | Encoder, decoder and methods for backward compatible multi-resolution spatial-audio-object-coding |
PCT/EP2013/070533 WO2014053537A1 (en) | 2012-10-05 | 2013-10-02 | Encoder, decoder and methods for backward compatible multi-resolution spatial-audio-object-coding |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2015004205A true MX2015004205A (es) | 2015-11-13 |
MX345497B MX345497B (es) | 2017-02-02 |
Family
ID=48325510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2015004205A MX345497B (es) | 2012-10-05 | 2013-10-02 | Codificador, descodificador y métodos para codificación espacial de objetos de audio de multiresolución retrocompatible. |
Country Status (21)
Country | Link |
---|---|
US (1) | US11074920B2 (es) |
EP (2) | EP2717261A1 (es) |
JP (1) | JP6285939B2 (es) |
KR (1) | KR101798117B1 (es) |
CN (1) | CN104838442B (es) |
AR (1) | AR092927A1 (es) |
AU (1) | AU2013326516B2 (es) |
BR (1) | BR112015007532B1 (es) |
CA (1) | CA2887228C (es) |
ES (1) | ES2703327T3 (es) |
HK (1) | HK1213360A1 (es) |
MX (1) | MX345497B (es) |
MY (1) | MY191498A (es) |
PL (1) | PL2904609T3 (es) |
PT (1) | PT2904609T (es) |
RU (1) | RU2669079C2 (es) |
SG (1) | SG11201502608XA (es) |
TR (1) | TR201900436T4 (es) |
TW (1) | TWI545559B (es) |
WO (1) | WO2014053537A1 (es) |
ZA (1) | ZA201503024B (es) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2804176A1 (en) * | 2013-05-13 | 2014-11-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio object separation from mixture signal using object-specific time/frequency resolutions |
EP2980801A1 (en) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for estimating noise in an audio signal, noise estimator, audio encoder, audio decoder, and system for transmitting audio signals |
US10134412B2 (en) * | 2015-09-03 | 2018-11-20 | Shure Acquisition Holdings, Inc. | Multiresolution coding and modulation system |
US11152014B2 (en) | 2016-04-08 | 2021-10-19 | Dolby Laboratories Licensing Corporation | Audio source parameterization |
US10362423B2 (en) * | 2016-10-13 | 2019-07-23 | Qualcomm Incorporated | Parametric audio decoding |
EP3382701A1 (en) | 2017-03-31 | 2018-10-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for post-processing an audio signal using prediction based shaping |
WO2018201112A1 (en) | 2017-04-28 | 2018-11-01 | Goodwin Michael M | Audio coder window sizes and time-frequency transformations |
WO2019105575A1 (en) * | 2017-12-01 | 2019-06-06 | Nokia Technologies Oy | Determination of spatial audio parameter encoding and associated decoding |
CN110660401B (zh) * | 2019-09-02 | 2021-09-24 | 武汉大学 | 一种基于高低频域分辨率切换的音频对象编解码方法 |
FR3101741A1 (fr) * | 2019-10-02 | 2021-04-09 | Orange | Détermination de corrections à appliquer à un signal audio multicanal, codage et décodage associés |
GB2598932A (en) * | 2020-09-18 | 2022-03-23 | Nokia Technologies Oy | Spatial audio parameter encoding and associated decoding |
CN113314130B (zh) * | 2021-05-07 | 2022-05-13 | 武汉大学 | 一种基于频谱搬移的音频对象编解码方法 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
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US6978236B1 (en) * | 1999-10-01 | 2005-12-20 | Coding Technologies Ab | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
US7610205B2 (en) * | 2002-02-12 | 2009-10-27 | Dolby Laboratories Licensing Corporation | High quality time-scaling and pitch-scaling of audio signals |
DE102004042819A1 (de) * | 2004-09-03 | 2006-03-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Erzeugen eines codierten Multikanalsignals und Vorrichtung und Verfahren zum Decodieren eines codierten Multikanalsignals |
KR100682904B1 (ko) | 2004-12-01 | 2007-02-15 | 삼성전자주식회사 | 공간 정보를 이용한 다채널 오디오 신호 처리 장치 및 방법 |
CN101578654B (zh) | 2006-07-04 | 2013-04-24 | 韩国电子通信研究院 | 用于恢复多通道音频信号的设备和方法 |
WO2008100068A1 (en) * | 2007-02-13 | 2008-08-21 | Lg Electronics Inc. | A method and an apparatus for processing an audio signal |
JP5161893B2 (ja) * | 2007-03-16 | 2013-03-13 | エルジー エレクトロニクス インコーポレイティド | オーディオ信号の処理方法及び装置 |
US8295494B2 (en) | 2007-08-13 | 2012-10-23 | Lg Electronics Inc. | Enhancing audio with remixing capability |
WO2009049895A1 (en) * | 2007-10-17 | 2009-04-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio coding using downmix |
EP2144230A1 (en) * | 2008-07-11 | 2010-01-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Low bitrate audio encoding/decoding scheme having cascaded switches |
EP2175670A1 (en) | 2008-10-07 | 2010-04-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Binaural rendering of a multi-channel audio signal |
WO2011047887A1 (en) * | 2009-10-21 | 2011-04-28 | Dolby International Ab | Oversampling in a combined transposer filter bank |
CN102460573B (zh) * | 2009-06-24 | 2014-08-20 | 弗兰霍菲尔运输应用研究公司 | 音频信号译码器、对音频信号译码的方法 |
KR20110018107A (ko) * | 2009-08-17 | 2011-02-23 | 삼성전자주식회사 | 레지듀얼 신호 인코딩 및 디코딩 방법 및 장치 |
WO2011048067A1 (en) * | 2009-10-20 | 2011-04-28 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. | Apparatus for providing an upmix signal representation on the basis of a downmix signal representation, apparatus for providing a bitstream representing a multichannel audio signal, methods, computer program and bitstream using a distortion control signaling |
EP2323130A1 (en) * | 2009-11-12 | 2011-05-18 | Koninklijke Philips Electronics N.V. | Parametric encoding and decoding |
WO2011083979A2 (en) * | 2010-01-06 | 2011-07-14 | Lg Electronics Inc. | An apparatus for processing an audio signal and method thereof |
MX2012001696A (es) * | 2010-06-09 | 2012-02-22 | Panasonic Corp | Metodo de extension de ancho de banda, aparato de extension de ancho de banda, programa, circuito integrado, y aparato de descodificacion de audio. |
US9008811B2 (en) * | 2010-09-17 | 2015-04-14 | Xiph.org Foundation | Methods and systems for adaptive time-frequency resolution in digital data coding |
US10497381B2 (en) * | 2012-05-04 | 2019-12-03 | Xmos Inc. | Methods and systems for improved measurement, entity and parameter estimation, and path propagation effect measurement and mitigation in source signal separation |
-
2013
- 2013-05-13 EP EP13167485.5A patent/EP2717261A1/en not_active Withdrawn
- 2013-10-02 JP JP2015535004A patent/JP6285939B2/ja active Active
- 2013-10-02 CA CA2887228A patent/CA2887228C/en active Active
- 2013-10-02 ES ES13773699T patent/ES2703327T3/es active Active
- 2013-10-02 SG SG11201502608XA patent/SG11201502608XA/en unknown
- 2013-10-02 TR TR2019/00436T patent/TR201900436T4/tr unknown
- 2013-10-02 BR BR112015007532-0A patent/BR112015007532B1/pt active IP Right Grant
- 2013-10-02 MY MYPI2015000808A patent/MY191498A/en unknown
- 2013-10-02 PL PL13773699T patent/PL2904609T3/pl unknown
- 2013-10-02 CN CN201380063932.4A patent/CN104838442B/zh active Active
- 2013-10-02 RU RU2015116434A patent/RU2669079C2/ru active
- 2013-10-02 AU AU2013326516A patent/AU2013326516B2/en active Active
- 2013-10-02 WO PCT/EP2013/070533 patent/WO2014053537A1/en active Application Filing
- 2013-10-02 MX MX2015004205A patent/MX345497B/es active IP Right Grant
- 2013-10-02 EP EP13773699.7A patent/EP2904609B1/en active Active
- 2013-10-02 KR KR1020157010956A patent/KR101798117B1/ko active IP Right Grant
- 2013-10-02 PT PT13773699T patent/PT2904609T/pt unknown
- 2013-10-04 TW TW102136011A patent/TWI545559B/zh active
- 2013-10-07 AR ARP130103629A patent/AR092927A1/es active IP Right Grant
-
2015
- 2015-04-03 US US14/678,643 patent/US11074920B2/en active Active
- 2015-05-04 ZA ZA2015/03024A patent/ZA201503024B/en unknown
-
2016
- 2016-02-04 HK HK16101300.5A patent/HK1213360A1/zh unknown
Also Published As
Publication number | Publication date |
---|---|
PL2904609T3 (pl) | 2019-04-30 |
JP6285939B2 (ja) | 2018-02-28 |
KR20150073180A (ko) | 2015-06-30 |
MX345497B (es) | 2017-02-02 |
BR112015007532A2 (pt) | 2017-08-22 |
PT2904609T (pt) | 2019-01-30 |
BR112015007532B1 (pt) | 2021-08-03 |
EP2904609A1 (en) | 2015-08-12 |
TR201900436T4 (tr) | 2019-02-21 |
EP2904609B1 (en) | 2018-10-31 |
KR101798117B1 (ko) | 2017-12-12 |
US20150213806A1 (en) | 2015-07-30 |
AR092927A1 (es) | 2015-05-06 |
RU2015116434A (ru) | 2016-11-27 |
CN104838442A (zh) | 2015-08-12 |
MY191498A (en) | 2022-06-28 |
HK1213360A1 (zh) | 2016-06-30 |
BR112015007532A8 (pt) | 2019-02-12 |
EP2717261A1 (en) | 2014-04-09 |
US11074920B2 (en) | 2021-07-27 |
AU2013326516A1 (en) | 2015-04-23 |
JP2015535958A (ja) | 2015-12-17 |
RU2669079C2 (ru) | 2018-10-08 |
ES2703327T3 (es) | 2019-03-08 |
CN104838442B (zh) | 2018-10-02 |
TWI545559B (zh) | 2016-08-11 |
ZA201503024B (en) | 2016-09-28 |
SG11201502608XA (en) | 2015-05-28 |
TW201423728A (zh) | 2014-06-16 |
WO2014053537A1 (en) | 2014-04-10 |
AU2013326516B2 (en) | 2016-12-22 |
CA2887228C (en) | 2019-09-24 |
CA2887228A1 (en) | 2014-04-10 |
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