EA201790753A1 - Параметрическое микширование звуковых сигналов - Google Patents
Параметрическое микширование звуковых сигналовInfo
- Publication number
- EA201790753A1 EA201790753A1 EA201790753A EA201790753A EA201790753A1 EA 201790753 A1 EA201790753 A1 EA 201790753A1 EA 201790753 A EA201790753 A EA 201790753A EA 201790753 A EA201790753 A EA 201790753A EA 201790753 A1 EA201790753 A1 EA 201790753A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- signal
- mixing
- groups
- channels
- parameters
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 abstract 4
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)
- 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
В блоке кодирования блок понижающего микширования формирует первый и второй каналы сигнала понижающего микширования как линейные комбинации, соответственно, первой и второй групп каналов M-канального звукового сигнала; и блок анализа определяет параметры повышающего микширования для параметрического восстановления звукового сигнала и параметры микширования. В блоке декодирования блок декорреляции выводит декоррелированный сигнал на основе сигнала понижающего микширования; и блок микширования определяет коэффициенты микширования на основе параметров микширования или параметров повышающего микширования и формирует K-канальный выходной сигнал как линейную комбинацию сигнала понижающего микширования и декоррелированного сигнала согласно коэффициентам микширования. Каналы выходного сигнала аппроксимируют линейные комбинации M групп каналов, соответственно, звукового сигнала. K групп составляют иное разбиение звукового сигнала, чем первая и вторая группы, и 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 |
|---|---|
| EA201790753A1 true EA201790753A1 (ru) | 2017-12-29 |
| EA034250B1 EA034250B1 (ru) | 2020-01-21 |
Family
ID=54364338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EA201790753A EA034250B1 (ru) | 2014-10-31 | 2015-10-28 | Параметрическое микширование звуковых сигналов |
Country Status (39)
| Country | Link |
|---|---|
| US (1) | US9930465B2 (ru) |
| EP (1) | EP3213322B1 (ru) |
| JP (1) | JP6686015B2 (ru) |
| KR (1) | KR102501969B1 (ru) |
| CN (1) | CN107112020B (ru) |
| AU (1) | AU2015340622B2 (ru) |
| CA (1) | CA2965731C (ru) |
| CL (1) | CL2017001037A1 (ru) |
| CO (1) | CO2017004283A2 (ru) |
| CY (1) | CY1121917T1 (ru) |
| DK (1) | DK3213322T3 (ru) |
| EA (1) | EA034250B1 (ru) |
| EC (1) | ECSP17023702A (ru) |
| ES (1) | ES2732668T3 (ru) |
| GE (1) | GEP20196960B (ru) |
| GT (1) | GT201700088A (ru) |
| HK (1) | HK1243547B (ru) |
| HR (1) | HRP20191107T1 (ru) |
| HU (1) | HUE044368T2 (ru) |
| IL (1) | IL251789B (ru) |
| LT (1) | LT3213322T (ru) |
| ME (1) | ME03453B (ru) |
| MX (1) | MX364405B (ru) |
| MY (1) | MY190174A (ru) |
| PE (1) | PE20170759A1 (ru) |
| PH (1) | PH12017500723A1 (ru) |
| PL (1) | PL3213322T3 (ru) |
| PT (1) | PT3213322T (ru) |
| RS (1) | RS58874B1 (ru) |
| SA (1) | SA517381440B1 (ru) |
| SG (1) | SG11201703263PA (ru) |
| SI (1) | SI3213322T1 (ru) |
| SV (1) | SV2017005431A (ru) |
| TN (1) | TN2017000143A1 (ru) |
| TW (1) | TWI587286B (ru) |
| UA (1) | UA123388C2 (ru) |
| UY (1) | UY36378A (ru) |
| WO (1) | WO2016066705A1 (ru) |
| ZA (1) | ZA201702647B (ru) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3540732B1 (en) | 2014-10-31 | 2023-07-26 | Dolby International AB | Parametric decoding of multichannel audio signals |
| EP3286930B1 (en) | 2015-04-21 | 2020-05-20 | 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 |
| 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 |
| EP1825713B1 (en) | 2004-11-22 | 2012-10-17 | Bang & Olufsen A/S | A 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 |
| EP1829424B1 (en) * | 2005-04-15 | 2009-01-21 | Dolby Sweden AB | Temporal envelope shaping of decorrelated signals |
| 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 |
| WO2008046531A1 (en) | 2006-10-16 | 2008-04-24 | Dolby Sweden Ab | Enhanced coding and parameter representation of multichannel downmixed object coding |
| KR101128815B1 (ko) | 2006-12-07 | 2012-03-27 | 엘지전자 주식회사 | 오디오 처리 방법 및 장치 |
| 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 |
| CA2684975C (en) * | 2007-04-26 | 2016-08-02 | Dolby Sweden Ab | Apparatus and method for synthesizing an output signal |
| EP2076900A1 (en) * | 2007-10-17 | 2009-07-08 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Audio coding using upmix |
| US8639368B2 (en) * | 2008-07-15 | 2014-01-28 | Lg Electronics Inc. | 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 |
| 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 |
| WO2014007096A1 (ja) | 2012-07-02 | 2014-01-09 | 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 |
| WO2014009878A2 (en) | 2012-07-09 | 2014-01-16 | Koninklijke Philips N.V. | Encoding and decoding of audio signals |
| BR112015018522B1 (pt) | 2013-02-14 | 2021-12-14 | Dolby Laboratories Licensing Corporation | Método, aparelho e meio não transitório que tem um método armazenado no mesmo para controlar a coerência entre canais de sinais de áudio com upmix. |
| RU2648947C2 (ru) | 2013-10-21 | 2018-03-28 | Долби Интернэшнл Аб | Параметрическая реконструкция аудиосигналов |
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2015
- 2015-10-13 TW TW104133508A patent/TWI587286B/zh active
- 2015-10-28 PE PE2017000726A patent/PE20170759A1/es unknown
- 2015-10-28 EP EP15787573.3A patent/EP3213322B1/en active Active
- 2015-10-28 UA UAA201704246A patent/UA123388C2/uk unknown
- 2015-10-28 GE GEAP201514481A patent/GEP20196960B/en unknown
- 2015-10-28 ME MEP-2019-170A patent/ME03453B/me unknown
- 2015-10-28 RS RS20190769A patent/RS58874B1/sr unknown
- 2015-10-28 MY MYPI2017701447A patent/MY190174A/en unknown
- 2015-10-28 DK DK15787573.3T patent/DK3213322T3/da active
- 2015-10-28 AU AU2015340622A patent/AU2015340622B2/en active Active
- 2015-10-28 CN CN201580059156.XA patent/CN107112020B/zh active Active
- 2015-10-28 US US15/522,255 patent/US9930465B2/en active Active
- 2015-10-28 TN TN2017000143A patent/TN2017000143A1/en unknown
- 2015-10-28 CA CA2965731A patent/CA2965731C/en active Active
- 2015-10-28 LT LTEP15787573.3T patent/LT3213322T/lt unknown
- 2015-10-28 HU HUE15787573 patent/HUE044368T2/hu unknown
- 2015-10-28 JP JP2017522828A patent/JP6686015B2/ja active Active
- 2015-10-28 PT PT15787573T patent/PT3213322T/pt unknown
- 2015-10-28 EA EA201790753A patent/EA034250B1/ru unknown
- 2015-10-28 WO PCT/EP2015/075022 patent/WO2016066705A1/en active Application Filing
- 2015-10-28 MX MX2017005409A patent/MX364405B/es active IP Right Grant
- 2015-10-28 SI SI201530795T patent/SI3213322T1/sl unknown
- 2015-10-28 KR KR1020177011883A patent/KR102501969B1/ko active IP Right Grant
- 2015-10-28 ES ES15787573T patent/ES2732668T3/es active Active
- 2015-10-28 SG SG11201703263PA patent/SG11201703263PA/en unknown
- 2015-10-28 PL PL15787573T patent/PL3213322T3/pl 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/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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