CL2017001037A1 - Mezcla paramétrica de señales de audio - Google Patents
Mezcla paramétrica de señales de audioInfo
- Publication number
- CL2017001037A1 CL2017001037A1 CL2017001037A CL2017001037A CL2017001037A1 CL 2017001037 A1 CL2017001037 A1 CL 2017001037A1 CL 2017001037 A CL2017001037 A CL 2017001037A CL 2017001037 A CL2017001037 A CL 2017001037A CL 2017001037 A1 CL2017001037 A1 CL 2017001037A1
- Authority
- CL
- Chile
- Prior art keywords
- mixing
- signal
- channel
- descending
- section
- Prior art date
Links
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
- G10L19/167—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
- 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)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Mathematical Physics (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
<p>EN UNA SECCIÓN DE CODIFICACIÓN, UNA SECCIÓN DE MEZCLA DESCENDENTE FORMA EL PRIMER Y EL SEGUNDO CANAL DE UNA SEÑAL DE MEZCLA DESCENDENTE COMA 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 DETERMINE LOS COEFICIENTES DE MEZCLA EN BASE A LOS PARÁMETROS DE MEZCLA A 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 ≤K ?M.</p>
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462073462P | 2014-10-31 | 2014-10-31 | |
| US201562167711P | 2015-05-28 | 2015-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CL2017001037A1 true CL2017001037A1 (es) | 2017-12-01 |
Family
ID=54364338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CL2017001037A CL2017001037A1 (es) | 2014-10-31 | 2017-04-26 | 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) | GEAP201814481A (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 |
| BR112017008015B1 (pt) * | 2014-10-31 | 2023-11-14 | Dolby International Ab | Métodos e sistemas de decodificação e codificação de áudio |
| WO2016172254A1 (en) | 2015-04-21 | 2016-10-27 | Dolby Laboratories Licensing Corporation | Spatial audio signal manipulation |
| TWI808298B (zh) * | 2019-01-21 | 2023-07-11 | 弗勞恩霍夫爾協會 | 對空間音訊表示進行編碼的裝置和方法或使用傳輸後設資料對編碼音訊訊號進行解碼的裝置和方法和相關計算機程式 |
| US11523239B2 (en) * | 2019-07-22 | 2022-12-06 | Hisense Visual Technology Co., Ltd. | Display apparatus and method for processing audio |
| AU2020340937A1 (en) | 2019-09-03 | 2022-03-24 | Dolby Laboratories Licensing Corporation | Low-latency, low-frequency effects codec |
| US20250022474A1 (en) * | 2021-11-26 | 2025-01-16 | Beijing Xiaomi Mobile Software Co., Ltd. | Stereo audio signal processing method, communication apparatus, 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 |
| CA2595625A1 (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 |
| DE602006004959D1 (de) * | 2005-04-15 | 2009-03-12 | Dolby Sweden Ab | Zeitliche hüllkurvenformgebung von entkorrelierten signalen |
| CN103366747B (zh) * | 2006-02-03 | 2017-05-17 | 韩国电子通信研究院 | 用于控制音频信号的渲染的设备和方法 |
| US7965848B2 (en) | 2006-03-29 | 2011-06-21 | Dolby International Ab | Reduced number of channels decoding |
| US9565509B2 (en) | 2006-10-16 | 2017-02-07 | Dolby International Ab | Enhanced coding and parameter representation of multichannel downmixed object coding |
| WO2008069596A1 (en) | 2006-12-07 | 2008-06-12 | 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 |
| AU2008243406B2 (en) * | 2007-04-26 | 2011-08-25 | Dolby International Ab | Apparatus and method for synthesizing an output signal |
| RU2452043C2 (ru) * | 2007-10-17 | 2012-05-27 | Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. | Аудиокодирование с использованием понижающего микширования |
| WO2010008198A2 (en) * | 2008-07-15 | 2010-01-21 | Lg Electronics Inc. | A method and an apparatus for processing an 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 |
| 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 |
| EP2249334A1 (en) * | 2009-05-08 | 2010-11-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio format transcoder |
| CN102714038B (zh) | 2009-11-20 | 2014-11-05 | 弗兰霍菲尔运输应用研究公司 | 用以基于下混信号表示型态而提供上混信号表示型态的装置、用以提供表示多声道音频信号的位流的装置、方法 |
| BR112014004129A2 (pt) | 2012-07-02 | 2017-06-13 | Sony Corp | dispositivos e métodos de decodificação e de codificação, e, programa |
| CN104428835B (zh) | 2012-07-09 | 2017-10-31 | 皇家飞利浦有限公司 | 音频信号的编码和解码 |
| KR101729930B1 (ko) * | 2013-02-14 | 2017-04-25 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 업믹스된 오디오 신호들의 채널간 코히어런스를 제어하기 위한 방법 |
| KR102381216B1 (ko) | 2013-10-21 | 2022-04-08 | 돌비 인터네셔널 에이비 | 오디오 신호들의 파라메트릭 재구성 |
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2015
- 2015-10-13 TW TW104133508A patent/TWI587286B/zh active
- 2015-10-28 GE GEAP201814481A patent/GEAP201814481A/en unknown
- 2015-10-28 AU AU2015340622A patent/AU2015340622B2/en active Active
- 2015-10-28 WO PCT/EP2015/075022 patent/WO2016066705A1/en not_active Ceased
- 2015-10-28 MY MYPI2017701447A patent/MY190174A/en unknown
- 2015-10-28 UA UAA201704246A patent/UA123388C2/uk unknown
- 2015-10-28 CN CN201580059156.XA patent/CN107112020B/zh active Active
- 2015-10-28 TN TN2017000143A patent/TN2017000143A1/en unknown
- 2015-10-28 CA CA2965731A patent/CA2965731C/en active Active
- 2015-10-28 PL PL15787573T patent/PL3213322T3/pl unknown
- 2015-10-28 JP JP2017522828A patent/JP6686015B2/ja 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 EP EP15787573.3A patent/EP3213322B1/en active Active
- 2015-10-28 EA EA201790753A patent/EA034250B1/ru unknown
- 2015-10-28 ME MEP-2019-170A patent/ME03453B/me unknown
- 2015-10-28 DK DK15787573.3T patent/DK3213322T3/da active
- 2015-10-28 MX MX2017005409A patent/MX364405B/es active IP Right Grant
- 2015-10-28 PT PT15787573T patent/PT3213322T/pt unknown
- 2015-10-28 HK HK18102845.3A patent/HK1243547B/en unknown
- 2015-10-28 ES ES15787573T patent/ES2732668T3/es active Active
- 2015-10-28 PE PE2017000726A patent/PE20170759A1/es unknown
- 2015-10-28 GE GEAP201514481A patent/GEP20196960B/en unknown
- 2015-10-28 HR HRP20191107TT patent/HRP20191107T1/hr unknown
- 2015-10-28 RS RS20190769A patent/RS58874B1/sr unknown
- 2015-10-28 SG SG11201703263PA patent/SG11201703263PA/en unknown
- 2015-10-28 LT LTEP15787573.3T patent/LT3213322T/lt unknown
- 2015-10-28 HU HUE15787573 patent/HUE044368T2/hu unknown
- 2015-10-28 KR KR1020177011883A patent/KR102501969B1/ko 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/PH12017500723B1/en unknown
- 2017-04-26 CL CL2017001037A patent/CL2017001037A1/es unknown
- 2017-04-27 CO CONC2017/0004283A patent/CO2017004283A2/es unknown
- 2017-04-27 GT GT201700088A patent/GT201700088A/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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