ECSP17023702A - Mezcla paramétrica de señales de audio - Google Patents
Mezcla paramétrica de señales de audioInfo
- Publication number
- ECSP17023702A ECSP17023702A ECIEPI201723702A ECPI201723702A ECSP17023702A EC SP17023702 A ECSP17023702 A EC SP17023702A EC IEPI201723702 A ECIEPI201723702 A EC IEPI201723702A EC PI201723702 A ECPI201723702 A EC PI201723702A EC SP17023702 A ECSP17023702 A EC SP17023702A
- Authority
- EC
- Ecuador
- Prior art keywords
- signal
- channels
- section
- mixing
- downmix
- Prior art date
Links
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
- G10L19/008—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
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
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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
-
- 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
- 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)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Mathematical Physics (AREA)
- Stereophonic System (AREA)
- Circuit For Audible Band Transducer (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
En una sección de codificación, una sección de mezcla descendente forma el primer y el segundo canal de una señal de mezcla descendente como combinaciones lineales del primer y el segundo grupo de canales, respectivamente, de una señal de audio del canal M; y una sección de análisis determina los parámetros de mezcla ascendente para la reconstrucción paramétrica de la señal de audio, y los parámetros de mezcla. En una sección de decodificación, una sección de descorrelación produce una señal descorrelacionada en base a la señal de mezcla descendente; y una sección de mezcla determina los coeficientes de mezcla en base a los parámetros de mezcla o los parámetros de mezcla ascendente, y forma una señal de salida del canal k como una combinación lineal de la señal de mezcla descendente y la señal descorrelacionada conforme con los coeficientes de mezcla. Los canales de la señal de salida se aproximan a combinaciones lineales de los grupos k de los canales, respectivamente, de la señal de audio. Los grupos k constituyen una partición diferente de la señal de audio en comparación con el primer grupo y el segundo grupo, y 2 es menor o igual a k que es menor a M.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462073462P | 2014-10-31 | 2014-10-31 | |
| US201562167711P | 2015-05-28 | 2015-05-28 | |
| PCT/EP2015/075022 WO2016066705A1 (en) | 2014-10-31 | 2015-10-28 | Parametric mixing of audio signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ECSP17023702A true ECSP17023702A (es) | 2018-03-31 |
Family
ID=54364338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ECIEPI201723702A ECSP17023702A (es) | 2014-10-31 | 2017-05-03 | Mezcla paramétrica de señales de audio |
Country Status (39)
| Country | Link |
|---|---|
| US (1) | US9930465B2 (es) |
| EP (1) | EP3213322B1 (es) |
| JP (1) | JP6686015B2 (es) |
| KR (1) | KR102501969B1 (es) |
| CN (1) | CN107112020B (es) |
| AU (1) | AU2015340622B2 (es) |
| CA (1) | CA2965731C (es) |
| CL (1) | CL2017001037A1 (es) |
| CO (1) | CO2017004283A2 (es) |
| CY (1) | CY1121917T1 (es) |
| DK (1) | DK3213322T3 (es) |
| EA (1) | EA034250B1 (es) |
| EC (1) | ECSP17023702A (es) |
| ES (1) | ES2732668T3 (es) |
| GE (2) | GEP20196960B (es) |
| GT (1) | GT201700088A (es) |
| HK (1) | HK1243547B (es) |
| HR (1) | HRP20191107T1 (es) |
| HU (1) | HUE044368T2 (es) |
| IL (1) | IL251789B (es) |
| LT (1) | LT3213322T (es) |
| ME (1) | ME03453B (es) |
| MX (1) | MX364405B (es) |
| MY (1) | MY190174A (es) |
| PE (1) | PE20170759A1 (es) |
| PH (1) | PH12017500723B1 (es) |
| PL (1) | PL3213322T3 (es) |
| PT (1) | PT3213322T (es) |
| RS (1) | RS58874B1 (es) |
| SA (1) | SA517381440B1 (es) |
| SG (1) | SG11201703263PA (es) |
| SI (1) | SI3213322T1 (es) |
| SV (1) | SV2017005431A (es) |
| TN (1) | TN2017000143A1 (es) |
| TW (1) | TWI587286B (es) |
| UA (1) | UA123388C2 (es) |
| UY (1) | UY36378A (es) |
| WO (1) | WO2016066705A1 (es) |
| ZA (1) | ZA201702647B (es) |
Families Citing this family (8)
| 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 |
| KR102486338B1 (ko) * | 2014-10-31 | 2023-01-10 | 돌비 인터네셔널 에이비 | 멀티채널 오디오 신호의 파라메트릭 인코딩 및 디코딩 |
| WO2016172254A1 (en) | 2015-04-21 | 2016-10-27 | Dolby Laboratories Licensing Corporation | Spatial audio signal manipulation |
| SG11202107802VA (en) * | 2019-01-21 | 2021-08-30 | Fraunhofer Ges Forschung | Apparatus and method for encoding a spatial audio representation or apparatus and method for decoding an encoded audio signal using transport metadata and related computer programs |
| CN112261545A (zh) * | 2019-07-22 | 2021-01-22 | 海信视像科技股份有限公司 | 显示装置 |
| WO2021046060A1 (en) | 2019-09-03 | 2021-03-11 | Dolby Laboratories Licensing Corporation | Low-latency, low-frequency effects codec |
| EP4440151A4 (en) * | 2021-11-26 | 2024-11-27 | Beijing Xiaomi Mobile Software Co., Ltd. | METHOD AND DEVICE FOR STEREO AUDIO SIGNAL PROCESSING, ENCODING DEVICE, DECODING DEVICE AND STORAGE MEDIUM |
| 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 (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7720230B2 (en) * | 2004-10-20 | 2010-05-18 | Agere Systems, Inc. | Individual channel shaping for BCC schemes and the like |
| US20060106620A1 (en) | 2004-10-28 | 2006-05-18 | Thompson Jeffrey K | Audio spatial environment down-mixer |
| SE0402649D0 (sv) * | 2004-11-02 | 2004-11-02 | Coding Tech Ab | Advanced methods of creating orthogonal signals |
| WO2006054270A1 (en) | 2004-11-22 | 2006-05-26 | Bang & Olufsen A/S | A method and apparatus for multichannel upmixing and downmixing |
| JP2008529364A (ja) | 2005-01-24 | 2008-07-31 | ティ エイチ エックス リミテッド | 周辺及び直接サラウンドサウンドシステム |
| TWI313857B (en) * | 2005-04-12 | 2009-08-21 | Coding Tech Ab | Apparatus for generating a parameter representation of a multi-channel signal and method for representing multi-channel audio signals |
| ATE421845T1 (de) * | 2005-04-15 | 2009-02-15 | Dolby Sweden Ab | Zeitliche hüllkurvenformgebung von entkorrelierten signalen |
| EP1989704B1 (en) * | 2006-02-03 | 2013-10-16 | Electronics and Telecommunications Research Institute | Method and apparatus for control of randering multiobject or multichannel audio signal using spatial cue |
| US7965848B2 (en) | 2006-03-29 | 2011-06-21 | Dolby International Ab | Reduced number of channels decoding |
| WO2008046531A1 (en) | 2006-10-16 | 2008-04-24 | Dolby Sweden Ab | Enhanced coding and parameter representation of multichannel downmixed object coding |
| EP2122613B1 (en) | 2006-12-07 | 2019-01-30 | LG Electronics Inc. | A method and an apparatus for processing an audio signal |
| US8908873B2 (en) | 2007-03-21 | 2014-12-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Method and apparatus for conversion between multi-channel audio formats |
| MX2009011405A (es) * | 2007-04-26 | 2009-11-05 | Dolby Sweden Ab | Aparato y metodo para sintetizar una señal de salida. |
| MX2010004220A (es) * | 2007-10-17 | 2010-06-11 | Fraunhofer Ges Forschung | Codificacion de audio usando mezcla descendente. |
| WO2010008198A2 (en) * | 2008-07-15 | 2010-01-21 | Lg Electronics Inc. | A method and an apparatus for processing an audio signal |
| 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 |
| EP2214161A1 (en) * | 2009-01-28 | 2010-08-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus, method and computer program for upmixing a downmix audio signal |
| EP2249334A1 (en) * | 2009-05-08 | 2010-11-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio format transcoder |
| AU2010321013B2 (en) | 2009-11-20 | 2014-05-29 | Dolby International Ab | Apparatus for providing an upmix signal representation on the basis of the downmix signal representation, apparatus for providing a bitstream representing a multi-channel audio signal, methods, computer programs and bitstream representing a multi-channel audio signal using a linear combination parameter |
| CN103748629B (zh) | 2012-07-02 | 2017-04-05 | 索尼公司 | 解码装置和方法、编码装置和方法以及程序 |
| MX342150B (es) | 2012-07-09 | 2016-09-15 | Koninklijke Philips Nv | Codificacion y decodificacion de señales de audio. |
| WO2014126689A1 (en) * | 2013-02-14 | 2014-08-21 | Dolby Laboratories Licensing Corporation | Methods for controlling the inter-channel coherence of upmixed audio signals |
| CN111192592B (zh) | 2013-10-21 | 2023-09-15 | 杜比国际公司 | 音频信号的参数化重构 |
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2015
- 2015-10-13 TW TW104133508A patent/TWI587286B/zh active
- 2015-10-28 RS RS20190769A patent/RS58874B1/sr unknown
- 2015-10-28 CA CA2965731A patent/CA2965731C/en active Active
- 2015-10-28 GE GEAP201514481A patent/GEP20196960B/en unknown
- 2015-10-28 LT LTEP15787573.3T patent/LT3213322T/lt unknown
- 2015-10-28 EP EP15787573.3A patent/EP3213322B1/en active Active
- 2015-10-28 ES ES15787573T patent/ES2732668T3/es active Active
- 2015-10-28 HR HRP20191107TT patent/HRP20191107T1/hr unknown
- 2015-10-28 SG SG11201703263PA patent/SG11201703263PA/en unknown
- 2015-10-28 PL PL15787573T patent/PL3213322T3/pl unknown
- 2015-10-28 AU AU2015340622A patent/AU2015340622B2/en active Active
- 2015-10-28 PT PT15787573T patent/PT3213322T/pt unknown
- 2015-10-28 TN TN2017000143A patent/TN2017000143A1/en unknown
- 2015-10-28 DK DK15787573.3T patent/DK3213322T3/da active
- 2015-10-28 EA EA201790753A patent/EA034250B1/ru unknown
- 2015-10-28 UA UAA201704246A patent/UA123388C2/uk unknown
- 2015-10-28 MY MYPI2017701447A patent/MY190174A/en unknown
- 2015-10-28 HU HUE15787573 patent/HUE044368T2/hu unknown
- 2015-10-28 JP JP2017522828A patent/JP6686015B2/ja active Active
- 2015-10-28 WO PCT/EP2015/075022 patent/WO2016066705A1/en not_active Ceased
- 2015-10-28 CN CN201580059156.XA patent/CN107112020B/zh active Active
- 2015-10-28 PE PE2017000726A patent/PE20170759A1/es unknown
- 2015-10-28 KR KR1020177011883A patent/KR102501969B1/ko active Active
- 2015-10-28 US US15/522,255 patent/US9930465B2/en active Active
- 2015-10-28 SI SI201530795T patent/SI3213322T1/sl unknown
- 2015-10-28 ME MEP-2019-170A patent/ME03453B/me unknown
- 2015-10-28 MX MX2017005409A patent/MX364405B/es active IP Right Grant
- 2015-10-28 HK HK18102845.3A patent/HK1243547B/en unknown
- 2015-10-28 GE GEAP201814481A patent/GEAP201814481A/en unknown
- 2015-10-30 UY UY0001036378A patent/UY36378A/es active IP Right Grant
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2017
- 2017-04-12 ZA ZA2017/02647A patent/ZA201702647B/en unknown
- 2017-04-19 IL IL251789A patent/IL251789B/en active IP Right Grant
- 2017-04-20 PH PH12017500723A patent/PH12017500723B1/en unknown
- 2017-04-26 CL CL2017001037A patent/CL2017001037A1/es unknown
- 2017-04-27 GT GT201700088A patent/GT201700088A/es unknown
- 2017-04-27 CO CONC2017/0004283A patent/CO2017004283A2/es unknown
- 2017-04-28 SV SV2017005431A patent/SV2017005431A/es unknown
- 2017-04-30 SA SA517381440A patent/SA517381440B1/ar unknown
- 2017-05-03 EC ECIEPI201723702A patent/ECSP17023702A/es unknown
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2019
- 2019-06-27 CY CY20191100677T patent/CY1121917T1/el unknown
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