MX2017005409A - Mezcla parametrica de senales de audio. - Google Patents
Mezcla parametrica de senales de audio.Info
- Publication number
- MX2017005409A MX2017005409A MX2017005409A MX2017005409A MX2017005409A MX 2017005409 A MX2017005409 A MX 2017005409A MX 2017005409 A MX2017005409 A MX 2017005409A MX 2017005409 A MX2017005409 A MX 2017005409A MX 2017005409 A MX2017005409 A MX 2017005409A
- Authority
- MX
- Mexico
- Prior art keywords
- signal
- section
- mixing
- channels
- groups
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 5
- 238000005192 partition Methods 0.000 abstract 1
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)
- Signal Processing (AREA)
- Acoustics & Sound (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)
Abstract
En una sección de codificación (100), una sección de mezcla descendente (110) forma el primer y el segundo canales ( , ); de una señal de mezcla descendente como combinaciones lineales del primer y el segundo grupo (401, 402) de canales, respectivamente, de una señal de audio de canales; y una sección de análisis (120) 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 (1200), una sección de descorrelación (1210) produce una señal descorrelacionada ( ) en base a la señal de mezcla descendente; y la sección de mezcla (1220) determina los coeficientes de mezcla en base a los parámetros de mezcla o los parámetros de mezcla ascendente, y forma una señal de salida de canales ( , ), 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 (501-502, 1301-1303) de 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 (2)
| Publication Number | Publication Date |
|---|---|
| MX2017005409A true MX2017005409A (es) | 2017-06-21 |
| MX364405B MX364405B (es) | 2019-04-24 |
Family
ID=54364338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2017005409A MX364405B (es) | 2014-10-31 | 2015-10-28 | Mezcla parametrica de senales 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) | 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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112017008015B1 (pt) | 2014-10-31 | 2023-11-14 | Dolby International Ab | Métodos e sistemas de decodificação e codificação de áudio |
| US10257636B2 (en) | 2015-04-21 | 2019-04-09 | 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 |
| WO2023092505A1 (zh) * | 2021-11-26 | 2023-06-01 | 北京小米移动软件有限公司 | 一种立体声音频信号处理方法、装置、编码设备、解码设备及存储介质 |
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 |
| US7813933B2 (en) | 2004-11-22 | 2010-10-12 | Bang & Olufsen A/S | 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 |
| 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 |
| AU2007312598B2 (en) | 2006-10-16 | 2011-01-20 | Dolby International Ab | Enhanced coding and parameter representation of multichannel downmixed object coding |
| AU2007328614B2 (en) | 2006-12-07 | 2010-08-26 | 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 |
| ES2452348T3 (es) * | 2007-04-26 | 2014-04-01 | Dolby International Ab | Aparato y procedimiento para sintetizar una señal de salida |
| RU2452043C2 (ru) * | 2007-10-17 | 2012-05-27 | Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. | Аудиокодирование с использованием понижающего микширования |
| US8639368B2 (en) * | 2008-07-15 | 2014-01-28 | Lg Electronics Inc. | 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 |
| BR112012012097B1 (pt) | 2009-11-20 | 2021-01-05 | Fraunhofer - Gesellschaft Zur Foerderung Der Angewandten Ten Forschung E.V. | aparelho para prover uma representação de sinal upmix com base na representação de sinal downmix, aparelho para prover um fluxo de bits que representa um sinal de áudio de multicanais, métodos e fluxo de bits representando um sinal de áudio de multicanais utilizando um parâmetro de combinação linear |
| JP6331095B2 (ja) | 2012-07-02 | 2018-05-30 | ソニー株式会社 | 復号装置および方法、符号化装置および方法、並びにプログラム |
| 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 |
| WO2014126689A1 (en) * | 2013-02-14 | 2014-08-21 | Dolby Laboratories Licensing Corporation | Methods for controlling the inter-channel coherence of upmixed audio signals |
| KR102244379B1 (ko) | 2013-10-21 | 2021-04-26 | 돌비 인터네셔널 에이비 | 오디오 신호들의 파라메트릭 재구성 |
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2015
- 2015-10-13 TW TW104133508A patent/TWI587286B/zh active
- 2015-10-28 DK DK15787573.3T patent/DK3213322T3/da active
- 2015-10-28 PE PE2017000726A patent/PE20170759A1/es unknown
- 2015-10-28 TN TN2017000143A patent/TN2017000143A1/en unknown
- 2015-10-28 PL PL15787573T patent/PL3213322T3/pl unknown
- 2015-10-28 ME MEP-2019-170A patent/ME03453B/me unknown
- 2015-10-28 JP JP2017522828A patent/JP6686015B2/ja active Active
- 2015-10-28 LT LTEP15787573.3T patent/LT3213322T/lt unknown
- 2015-10-28 ES ES15787573T patent/ES2732668T3/es active Active
- 2015-10-28 CN CN201580059156.XA patent/CN107112020B/zh active Active
- 2015-10-28 SG SG11201703263PA patent/SG11201703263PA/en unknown
- 2015-10-28 MY MYPI2017701447A patent/MY190174A/en unknown
- 2015-10-28 HU HUE15787573 patent/HUE044368T2/hu unknown
- 2015-10-28 PT PT15787573T patent/PT3213322T/pt unknown
- 2015-10-28 US US15/522,255 patent/US9930465B2/en active Active
- 2015-10-28 SI SI201530795T patent/SI3213322T1/sl unknown
- 2015-10-28 EA EA201790753A patent/EA034250B1/ru unknown
- 2015-10-28 CA CA2965731A patent/CA2965731C/en active Active
- 2015-10-28 RS RS20190769A patent/RS58874B1/sr unknown
- 2015-10-28 WO PCT/EP2015/075022 patent/WO2016066705A1/en active Application Filing
- 2015-10-28 AU AU2015340622A patent/AU2015340622B2/en active Active
- 2015-10-28 EP EP15787573.3A patent/EP3213322B1/en active Active
- 2015-10-28 GE GEAP201514481A patent/GEP20196960B/en unknown
- 2015-10-28 MX MX2017005409A patent/MX364405B/es active IP Right Grant
- 2015-10-28 UA UAA201704246A patent/UA123388C2/uk unknown
- 2015-10-28 KR KR1020177011883A patent/KR102501969B1/ko active IP Right Grant
- 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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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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