CO2017004283A2 - Mezcla paramétrica de señales de audio - Google Patents
Mezcla paramétrica de señales de audioInfo
- Publication number
- CO2017004283A2 CO2017004283A2 CONC2017/0004283A CO2017004283A CO2017004283A2 CO 2017004283 A2 CO2017004283 A2 CO 2017004283A2 CO 2017004283 A CO2017004283 A CO 2017004283A CO 2017004283 A2 CO2017004283 A2 CO 2017004283A2
- Authority
- CO
- Colombia
- Prior art keywords
- mixing
- signal
- section
- parameters
- audio signal
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 5
- 238000005192 partition Methods 0.000 abstract 1
Classifications
-
- 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
-
- 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
-
- 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)
- 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)
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 ; 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 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 de los canales, respectivamente, de la señal de audio. Los grupos constituyen una partición diferente de la señal de audio en comparación con el primer grupo y el segundo grupo, y 2 < K <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 |
|---|---|
| CO2017004283A2 true CO2017004283A2 (es) | 2017-07-19 |
Family
ID=54364338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CONC2017/0004283A CO2017004283A2 (es) | 2014-10-31 | 2017-04-27 | 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 (1) | 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) | PH12017500723A1 (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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6640849B2 (ja) * | 2014-10-31 | 2020-02-05 | ドルビー・インターナショナル・アーベー | マルチチャネル・オーディオ信号のパラメトリック・エンコードおよびデコード |
| EP3286930B1 (en) | 2015-04-21 | 2020-05-20 | Dolby Laboratories Licensing Corporation | Spatial audio signal manipulation |
| BR112021014135A2 (pt) * | 2019-01-21 | 2021-09-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Sinal de áudio codificado, aparelho e método para codificação de uma representação de áudio espacial ou aparelho e método para decodificação de um sinal de áudio codificado |
| US11523239B2 (en) * | 2019-07-22 | 2022-12-06 | Hisense Visual Technology Co., Ltd. | Display apparatus and method for processing audio |
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 |
| US7813933B2 (en) | 2004-11-22 | 2010-10-12 | Bang & Olufsen A/S | Method and apparatus for multichannel upmixing and downmixing |
| US20060165247A1 (en) | 2005-01-24 | 2006-07-27 | Thx, Ltd. | Ambient and direct surround sound system |
| 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 |
| WO2006108543A1 (en) * | 2005-04-15 | 2006-10-19 | Coding Technologies Ab | Temporal envelope shaping of decorrelated signal |
| CN102693727B (zh) * | 2006-02-03 | 2015-06-10 | 韩国电子通信研究院 | 用于控制音频信号的渲染的方法 |
| US7965848B2 (en) | 2006-03-29 | 2011-06-21 | Dolby International Ab | Reduced number of channels decoding |
| EP2054875B1 (en) | 2006-10-16 | 2011-03-23 | Dolby Sweden AB | Enhanced coding and parameter representation of multichannel downmixed object coding |
| CA2670864C (en) | 2006-12-07 | 2015-09-29 | 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 |
| KR101312470B1 (ko) * | 2007-04-26 | 2013-09-27 | 돌비 인터네셔널 에이비 | 출력 신호 합성 장치 및 방법 |
| MX2010004138A (es) * | 2007-10-17 | 2010-04-30 | Ten Forschung Ev Fraunhofer | Codificacion de audio usando conversion de estereo a multicanal. |
| JP5258967B2 (ja) * | 2008-07-15 | 2013-08-07 | 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 |
| 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 |
| EP2489038B1 (en) | 2009-11-20 | 2016-01-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 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 |
| US9437198B2 (en) | 2012-07-02 | 2016-09-06 | Sony Corporation | Decoding device, decoding method, encoding device, encoding method, and program |
| EP2870603B1 (en) | 2012-07-09 | 2020-09-30 | Koninklijke Philips N.V. | Encoding and decoding of audio signals |
| IN2015MN01952A (es) | 2013-02-14 | 2015-08-28 | Dolby Lab Licensing Corp | |
| BR112016008817B1 (pt) | 2013-10-21 | 2022-03-22 | Dolby International Ab | Método para reconstruir um sinal de áudio de n canais, sistema de decodificação de áudio, método para codificar um sinal de áudio de n canais e sistema de codificação de áudio |
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2015
- 2015-10-13 TW TW104133508A patent/TWI587286B/zh active
- 2015-10-28 CN CN201580059156.XA patent/CN107112020B/zh active Active
- 2015-10-28 ME MEP-2019-170A patent/ME03453B/me unknown
- 2015-10-28 UA UAA201704246A patent/UA123388C2/uk unknown
- 2015-10-28 EA EA201790753A patent/EA034250B1/ru unknown
- 2015-10-28 DK DK15787573.3T patent/DK3213322T3/da active
- 2015-10-28 WO PCT/EP2015/075022 patent/WO2016066705A1/en active Application Filing
- 2015-10-28 US US15/522,255 patent/US9930465B2/en active Active
- 2015-10-28 CA CA2965731A patent/CA2965731C/en active Active
- 2015-10-28 LT LTEP15787573.3T patent/LT3213322T/lt unknown
- 2015-10-28 MY MYPI2017701447A patent/MY190174A/en unknown
- 2015-10-28 MX MX2017005409A patent/MX364405B/es active IP Right Grant
- 2015-10-28 PL PL15787573T patent/PL3213322T3/pl unknown
- 2015-10-28 HU HUE15787573 patent/HUE044368T2/hu unknown
- 2015-10-28 GE GEAP201514481A patent/GEP20196960B/en unknown
- 2015-10-28 SI SI201530795T patent/SI3213322T1/sl unknown
- 2015-10-28 JP JP2017522828A patent/JP6686015B2/ja active Active
- 2015-10-28 PE PE2017000726A patent/PE20170759A1/es unknown
- 2015-10-28 SG SG11201703263PA patent/SG11201703263PA/en unknown
- 2015-10-28 RS RS20190769A patent/RS58874B1/sr unknown
- 2015-10-28 KR KR1020177011883A patent/KR102501969B1/ko active IP Right Grant
- 2015-10-28 PT PT15787573T patent/PT3213322T/pt unknown
- 2015-10-28 ES ES15787573T patent/ES2732668T3/es active Active
- 2015-10-28 AU AU2015340622A patent/AU2015340622B2/en active Active
- 2015-10-28 TN TN2017000143A patent/TN2017000143A1/en unknown
- 2015-10-28 EP EP15787573.3A patent/EP3213322B1/en active Active
- 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/PH12017500723A1/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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2018
- 2018-02-27 HK HK18102845.3A patent/HK1243547B/zh unknown
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2019
- 2019-06-18 HR HRP20191107TT patent/HRP20191107T1/hr unknown
- 2019-06-27 CY CY20191100677T patent/CY1121917T1/el unknown
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