ES2709661T3 - Codificación y decodificación paramétrica de señales de audio multicanal - Google Patents
Codificación y decodificación paramétrica de señales de audio multicanal Download PDFInfo
- Publication number
- ES2709661T3 ES2709661T3 ES15801335T ES15801335T ES2709661T3 ES 2709661 T3 ES2709661 T3 ES 2709661T3 ES 15801335 T ES15801335 T ES 15801335T ES 15801335 T ES15801335 T ES 15801335T ES 2709661 T3 ES2709661 T3 ES 2709661T3
- Authority
- ES
- Spain
- Prior art keywords
- signal
- channels
- channel
- audio
- coding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005236 sound signal Effects 0.000 title claims abstract description 352
- 238000013507 mapping Methods 0.000 claims abstract description 92
- 238000000034 method Methods 0.000 claims abstract description 90
- 230000011664 signaling Effects 0.000 claims abstract description 54
- 238000005192 partition Methods 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims description 157
- 239000000203 mixture Substances 0.000 claims description 70
- 230000007704 transition Effects 0.000 claims description 34
- 230000004044 response Effects 0.000 claims description 21
- 238000004590 computer program Methods 0.000 claims description 9
- 238000005562 fading Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 description 71
- 238000004458 analytical method Methods 0.000 description 43
- 230000009466 transformation Effects 0.000 description 22
- 238000010586 diagram Methods 0.000 description 18
- 238000012545 processing Methods 0.000 description 10
- 238000011144 upstream manufacturing Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 8
- 239000003381 stabilizer Substances 0.000 description 7
- 238000013459 approach Methods 0.000 description 6
- 150000004675 formic acid derivatives Chemical class 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 5
- 239000013589 supplement Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000009499 grossing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000013139 quantization Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 238000011002 quantification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- G10L19/04—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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
-
- 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
- H04S3/008—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
-
- 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
- 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)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Mathematical Physics (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462073642P | 2014-10-31 | 2014-10-31 | |
| US201562128425P | 2015-03-04 | 2015-03-04 | |
| PCT/EP2015/075115 WO2016066743A1 (en) | 2014-10-31 | 2015-10-29 | Parametric encoding and decoding of multichannel audio signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2709661T3 true ES2709661T3 (es) | 2019-04-17 |
Family
ID=54705555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES15801335T Active ES2709661T3 (es) | 2014-10-31 | 2015-10-29 | Codificación y decodificación paramétrica de señales de audio multicanal |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US9955276B2 (OSRAM) |
| EP (2) | EP3213323B1 (OSRAM) |
| JP (2) | JP6640849B2 (OSRAM) |
| KR (1) | KR102486338B1 (OSRAM) |
| CN (2) | CN111816194B (OSRAM) |
| BR (1) | BR112017008015B1 (OSRAM) |
| ES (1) | ES2709661T3 (OSRAM) |
| RU (1) | RU2704266C2 (OSRAM) |
| WO (1) | WO2016066743A1 (OSRAM) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9674587B2 (en) * | 2012-06-26 | 2017-06-06 | Sonos, Inc. | Systems and methods for networked music playback including remote add to queue |
| WO2016184958A1 (en) * | 2015-05-20 | 2016-11-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Coding of multi-channel audio signals |
| EP3337066B1 (en) | 2016-12-14 | 2020-09-23 | Nokia Technologies Oy | Distributed audio mixing |
| CN107576933B (zh) * | 2017-08-17 | 2020-10-30 | 电子科技大学 | 多维拟合的信源定位方法 |
| WO2020127836A1 (en) | 2018-12-21 | 2020-06-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Sound reproduction/simulation system and method for simulating a sound reproduction |
| US20200388292A1 (en) * | 2019-06-10 | 2020-12-10 | Google Llc | Audio channel mixing |
| JP2022547038A (ja) | 2019-09-03 | 2022-11-10 | ドルビー ラボラトリーズ ライセンシング コーポレイション | 低レイテンシ・低音効果コーデック |
| GB2587614A (en) * | 2019-09-26 | 2021-04-07 | Nokia Technologies Oy | Audio encoding and audio decoding |
| TW202533213A (zh) | 2019-10-30 | 2025-08-16 | 美商杜拜研究特許公司 | 使用方向性元資料之多通道音頻編碼及解碼 |
| MX2022015324A (es) * | 2020-06-11 | 2023-02-27 | Dolby Laboratories Licensing Corp | Metodos y dispositivos para codificar y/o decodificar ruido de fondo espacial dentro de una se?al de entrada multicanal. |
| CN114023338B (zh) * | 2020-07-17 | 2025-06-03 | 华为技术有限公司 | 多声道音频信号的编码方法和装置 |
| EP4320615B1 (en) * | 2021-04-06 | 2025-12-03 | Dolby International AB | Coding of envelope information of an audio downmix signal |
| CN117730367A (zh) * | 2023-10-31 | 2024-03-19 | 北京小米移动软件有限公司 | 分组方法、编码器、解码器以及存储介质 |
Family Cites Families (49)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3277699B2 (ja) * | 1994-06-13 | 2002-04-22 | ソニー株式会社 | 信号符号化方法及び装置並びに信号復号化方法及び装置 |
| US7644003B2 (en) | 2001-05-04 | 2010-01-05 | Agere Systems Inc. | Cue-based audio coding/decoding |
| FR2862799B1 (fr) | 2003-11-26 | 2006-02-24 | Inst Nat Rech Inf Automat | Dispositif et methode perfectionnes de spatialisation du son |
| US7394903B2 (en) * | 2004-01-20 | 2008-07-01 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal |
| SE0402649D0 (sv) | 2004-11-02 | 2004-11-02 | Coding Tech Ab | Advanced methods of creating orthogonal signals |
| US20060165247A1 (en) | 2005-01-24 | 2006-07-27 | Thx, Ltd. | Ambient and direct surround sound system |
| EP1691348A1 (en) * | 2005-02-14 | 2006-08-16 | Ecole Polytechnique Federale De Lausanne | Parametric joint-coding of audio sources |
| ATE421845T1 (de) * | 2005-04-15 | 2009-02-15 | Dolby Sweden Ab | Zeitliche hüllkurvenformgebung von entkorrelierten signalen |
| PL2088580T3 (pl) * | 2005-07-14 | 2012-07-31 | Koninl Philips Electronics Nv | Kodowanie sygnałów audio |
| EP1921606B1 (en) | 2005-09-02 | 2011-10-19 | Panasonic Corporation | Energy shaping device and energy shaping method |
| TWI485698B (zh) * | 2005-09-14 | 2015-05-21 | Lg Electronics Inc | 音頻訊號之解碼方法及其裝置 |
| KR100888474B1 (ko) * | 2005-11-21 | 2009-03-12 | 삼성전자주식회사 | 멀티채널 오디오 신호의 부호화/복호화 장치 및 방법 |
| EP3267439A1 (en) * | 2006-02-03 | 2018-01-10 | Electronics and Telecommunications Research Institute | Method and apparatus for control of rendering multiobject or multichannel audio signal using spatial cue |
| JP4396683B2 (ja) * | 2006-10-02 | 2010-01-13 | カシオ計算機株式会社 | 音声符号化装置、音声符号化方法、及び、プログラム |
| US8687829B2 (en) * | 2006-10-16 | 2014-04-01 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for multi-channel parameter transformation |
| EP2137725B1 (en) * | 2007-04-26 | 2014-01-08 | Dolby International AB | Apparatus and method for synthesizing an output signal |
| JP5883561B2 (ja) * | 2007-10-17 | 2016-03-15 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ | アップミックスを使用した音声符号器 |
| MX2010012580A (es) * | 2008-05-23 | 2010-12-20 | Koninkl Philips Electronics Nv | Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico. |
| 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 |
| CN102177542B (zh) | 2008-10-10 | 2013-01-09 | 艾利森电话股份有限公司 | 能量保留多通道音频编码 |
| EP2214162A1 (en) * | 2009-01-28 | 2010-08-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Upmixer, method and computer program for upmixing a downmix audio signal |
| KR101622950B1 (ko) * | 2009-01-28 | 2016-05-23 | 삼성전자주식회사 | 오디오 신호의 부호화 및 복호화 방법 및 그 장치 |
| ES2511390T3 (es) | 2009-04-08 | 2014-10-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Aparato, procedimiento y programa de computación para mezclar en forma ascendente una señal de audio con mezcla descendente utilizando una suavización de valor de fase |
| US20120039477A1 (en) * | 2009-04-21 | 2012-02-16 | Koninklijke Philips Electronics N.V. | Audio signal synthesizing |
| EP2249334A1 (en) | 2009-05-08 | 2010-11-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio format transcoder |
| EP2360681A1 (en) | 2010-01-15 | 2011-08-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for extracting a direct/ambience signal from a downmix signal and spatial parametric information |
| CA3125378C (en) * | 2010-04-09 | 2023-02-07 | Dolby International Ab | Audio upmixer operable in prediction or non-prediction mode |
| TWI462087B (zh) * | 2010-11-12 | 2014-11-21 | Dolby Lab Licensing Corp | 複數音頻信號之降混方法、編解碼方法及混合系統 |
| US9219972B2 (en) | 2010-11-19 | 2015-12-22 | Nokia Technologies Oy | Efficient audio coding having reduced bit rate for ambient signals and decoding using same |
| JP5955862B2 (ja) | 2011-01-04 | 2016-07-20 | ディーティーエス・エルエルシーＤｔｓ Ｌｌｃ | 没入型オーディオ・レンダリング・システム |
| US9026450B2 (en) | 2011-03-09 | 2015-05-05 | Dts Llc | System for dynamically creating and rendering audio objects |
| TWI853425B (zh) | 2011-07-01 | 2024-08-21 | 美商杜比實驗室特許公司 | 用於適應性音頻信號的產生、譯碼與呈現之系統與方法 |
| BR112014010062B1 (pt) * | 2011-11-01 | 2021-12-14 | Koninklijke Philips N.V. | Codificador de objeto de áudio, decodificador de objeto de áudio, método para a codificação de objeto de áudio, e método para a decodificação de objeto de áudio |
| WO2013122388A1 (en) | 2012-02-15 | 2013-08-22 | Samsung Electronics Co., Ltd. | Data transmission apparatus, data receiving apparatus, data transceiving system, data transmission method and data receiving method |
| CN104160442B (zh) * | 2012-02-24 | 2016-10-12 | 杜比国际公司 | 音频处理 |
| CN103460283B (zh) * | 2012-04-05 | 2015-04-29 | 华为技术有限公司 | 确定多信道音频信号的编码参数的方法及多信道音频编码器 |
| WO2013186344A2 (en) * | 2012-06-14 | 2013-12-19 | Dolby International Ab | Smooth configuration switching for multichannel audio rendering based on a variable number of received channels |
| AU2013284704B2 (en) | 2012-07-02 | 2019-01-31 | Sony Corporation | Decoding device and method, encoding device and method, and program |
| US9473870B2 (en) | 2012-07-16 | 2016-10-18 | Qualcomm Incorporated | Loudspeaker position compensation with 3D-audio hierarchical coding |
| US9516446B2 (en) | 2012-07-20 | 2016-12-06 | Qualcomm Incorporated | Scalable downmix design for object-based surround codec with cluster analysis by synthesis |
| EP3253079B1 (en) | 2012-08-31 | 2023-04-05 | Dolby Laboratories Licensing Corporation | System for rendering and playback of object based audio in various listening environments |
| WO2014035902A2 (en) | 2012-08-31 | 2014-03-06 | Dolby Laboratories Licensing Corporation | Reflected and direct rendering of upmixed content to individually addressable drivers |
| BR122021021506B1 (pt) | 2012-09-12 | 2023-01-31 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V | Aparelho e método para fornecer capacidades melhoradas de downmix guiado para áudio 3d |
| WO2014068583A1 (en) | 2012-11-02 | 2014-05-08 | Pulz Electronics Pvt. Ltd. | Multi platform 4 layer and x, y, z axis audio recording, mixing and playback process |
| US9736609B2 (en) | 2013-02-07 | 2017-08-15 | Qualcomm Incorporated | Determining renderers for spherical harmonic coefficients |
| EP2956935B1 (en) | 2013-02-14 | 2017-01-04 | Dolby Laboratories Licensing Corporation | Controlling the inter-channel coherence of upmixed audio signals |
| CN110010140B (zh) * | 2013-04-05 | 2023-04-18 | 杜比国际公司 | 立体声音频编码器和解码器 |
| ES2660778T3 (es) | 2013-10-21 | 2018-03-26 | Dolby International Ab | Reconstrucción paramétrica de señales de audio |
| TWI587286B (zh) * | 2014-10-31 | 2017-06-11 | 杜比國際公司 | 音頻訊號之解碼和編碼的方法及系統、電腦程式產品、與電腦可讀取媒體 |
-
2015
- 2015-10-29 BR BR112017008015-0A patent/BR112017008015B1/pt active IP Right Grant
- 2015-10-29 RU RU2017114642A patent/RU2704266C2/ru active
- 2015-10-29 JP JP2017522811A patent/JP6640849B2/ja active Active
- 2015-10-29 ES ES15801335T patent/ES2709661T3/es active Active
- 2015-10-29 KR KR1020177011541A patent/KR102486338B1/ko active Active
- 2015-10-29 US US15/521,157 patent/US9955276B2/en active Active
- 2015-10-29 EP EP15801335.9A patent/EP3213323B1/en active Active
- 2015-10-29 CN CN202010517613.8A patent/CN111816194B/zh active Active
- 2015-10-29 WO PCT/EP2015/075115 patent/WO2016066743A1/en not_active Ceased
- 2015-10-29 EP EP18209379.9A patent/EP3540732B1/en active Active
- 2015-10-29 CN CN201580059276.XA patent/CN107004421B/zh active Active
-
2019
- 2019-12-26 JP JP2019235974A patent/JP7009437B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107004421B (zh) | 2020-07-07 |
| JP2017536756A (ja) | 2017-12-07 |
| BR112017008015A2 (pt) | 2017-12-19 |
| RU2019131327A (ru) | 2019-11-25 |
| EP3540732A1 (en) | 2019-09-18 |
| RU2017114642A (ru) | 2018-10-31 |
| US20170339505A1 (en) | 2017-11-23 |
| KR20170078648A (ko) | 2017-07-07 |
| JP6640849B2 (ja) | 2020-02-05 |
| RU2704266C2 (ru) | 2019-10-25 |
| WO2016066743A1 (en) | 2016-05-06 |
| EP3213323B1 (en) | 2018-12-12 |
| RU2017114642A3 (OSRAM) | 2019-05-24 |
| JP2020074007A (ja) | 2020-05-14 |
| CN107004421A (zh) | 2017-08-01 |
| KR102486338B1 (ko) | 2023-01-10 |
| BR112017008015B1 (pt) | 2023-11-14 |
| US9955276B2 (en) | 2018-04-24 |
| JP7009437B2 (ja) | 2022-01-25 |
| CN111816194A (zh) | 2020-10-23 |
| EP3213323A1 (en) | 2017-09-06 |
| EP3540732B1 (en) | 2023-07-26 |
| CN111816194B (zh) | 2024-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2709661T3 (es) | Codificación y decodificación paramétrica de señales de audio multicanal | |
| ES2934646T3 (es) | Sistema de procesamiento de audio | |
| JP5185337B2 (ja) | レベル・パラメータを生成する装置と方法、及びマルチチャネル表示を生成する装置と方法 | |
| ES2649194T3 (es) | Decodificador de audio, codificador de audio, procedimiento para proporcionar al menos cuatro señales de canales de audio sobre la base de una representación codificada, procedimiento para proporcionar una representación codificada sobre la base de al menos cuatro señales de canales de audio y programa informático que utiliza una extensión de ancho de banda | |
| ES2399058T3 (es) | Aparato y procedimiento para generar una señal de control de sintetizador de múltiples canales y aparato y procedimiento para sintetizar múltipes canales | |
| ES2645674T3 (es) | Procedimiento y unidad de procesamiento de señales para mapear una pluralidad de canales de entrada de una configuración de canales de entrada con canales de salida de una configuración de canales de salida | |
| ES3002807T3 (en) | Mdct-based complex prediction stereo decoding | |
| KR100855561B1 (ko) | 로우-비트 레이트 애플리케이션용 파라메트릭 표현을생성하는 방법 | |
| ES3002034T3 (en) | Concept for bridging the gap between parametric multi-channel audio coding and matrixed-surround multi-channel coding | |
| KR101761569B1 (ko) | 오디오 현장의 코딩 | |
| ES2732668T3 (es) | Mezcla paramétrica de señales de audio | |
| KR102482162B1 (ko) | 오디오 인코더 및 디코더 | |
| RU2798759C2 (ru) | Параметрическое кодирование и декодирование многоканальных аудиосигналов | |
| HK1163911B (en) | Method for representing multi-channel audio signals |