AR075163A1 - Aparato metodo y programa de computadora para mezclar hacia arriba una senal de audio mezclada hacia abajo - Google Patents
Aparato metodo y programa de computadora para mezclar hacia arriba una senal de audio mezclada hacia abajoInfo
- Publication number
- AR075163A1 AR075163A1 ARP100100165A ARP100100165A AR075163A1 AR 075163 A1 AR075163 A1 AR 075163A1 AR P100100165 A ARP100100165 A AR P100100165A AR P100100165 A ARP100100165 A AR P100100165A AR 075163 A1 AR075163 A1 AR 075163A1
- Authority
- AR
- Argentina
- Prior art keywords
- mixed
- parameter
- value
- audio signal
- mixing
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 5
- 238000004590 computer program Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Mathematical Physics (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Stereophonic System (AREA)
Abstract
Un aparato para mezclar hacia arriba una senal de audio mezclada hacia abajo describiendo uno o más canales de audio mezclados hacia abajo en una senal de audio mezclada hacia arriba describiendo una pluralidad de canales de audio mezclados hacia arriba comprende un mezclador hacia arriba configurado para aplicar parámetros de mezclado hacia arriba variables temporalmente para mezclar hacia arriba la senal de audio mezclada hacia abajo para obtener la senal de audio mezclada hacia arriba. El aparato comprende también un interpolador de parámetros, en donde el interpolador de parámetros está configurado para obtener uno o más parámetros de mezclado hacia arriba temporalmente interpolados para ser usados por el mezclador hacia arriba sobre la base de un primer parámetro de mezclado hacia arriba de valor complejo y un subsiguiente segundo parámetro de mezclado hacia arriba de valor complejo. El interpolador de parámetro está configurado para interpolar separadamente entre un valor de magnitud del primer parámetro de mezclado hacia arriba de valor complejo y un valor de magnitud del segundo parámetro de mezclado hacia arriba de valor complejo, y entre un valor de fase del primer parámetro de mezclado hacia arriba de valor complejo y un valor de fase del segundo parámetro de mezclado hacia arriba de valor complejo, para obtener el uno o más parámetros de mezclado hacia arriba temporalmente interpolados. Un respectivo método puede ser implementado, por ejemplo, como un programa de computadora.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14781509P | 2009-01-28 | 2009-01-28 | |
| EP09007086A EP2214161A1 (en) | 2009-01-28 | 2009-05-27 | Apparatus, method and computer program for upmixing a downmix audio signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR075163A1 true AR075163A1 (es) | 2011-03-16 |
Family
ID=41139170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP100100165A AR075163A1 (es) | 2009-01-28 | 2010-01-26 | Aparato metodo y programa de computadora para mezclar hacia arriba una senal de audio mezclada hacia abajo |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US8867753B2 (es) |
| EP (2) | EP2214161A1 (es) |
| JP (1) | JP5174973B2 (es) |
| KR (1) | KR101290486B1 (es) |
| CN (1) | CN102301420B (es) |
| AR (1) | AR075163A1 (es) |
| AU (1) | AU2010209869B2 (es) |
| BR (1) | BRPI1005299B1 (es) |
| CA (1) | CA2750272C (es) |
| CO (1) | CO6420380A2 (es) |
| ES (1) | ES2401554T3 (es) |
| MX (1) | MX2011007924A (es) |
| MY (1) | MY156497A (es) |
| PL (1) | PL2380167T3 (es) |
| RU (1) | RU2518696C2 (es) |
| SG (1) | SG173138A1 (es) |
| TW (1) | TWI417870B (es) |
| WO (1) | WO2010086216A1 (es) |
| ZA (1) | ZA201105417B (es) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5513976B2 (ja) * | 2010-05-12 | 2014-06-04 | 株式会社東芝 | 超音波診断装置 |
| KR101666465B1 (ko) * | 2010-07-22 | 2016-10-17 | 삼성전자주식회사 | 다채널 오디오 신호 부호화/복호화 장치 및 방법 |
| US9236064B2 (en) | 2012-02-15 | 2016-01-12 | Microsoft Technology Licensing, Llc | Sample rate converter with automatic anti-aliasing filter |
| KR101762225B1 (ko) | 2013-01-29 | 2017-07-28 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에.베. | 에너지 제한 작업을 이용하여 주파수 향상 신호를 발생시키는 장치 및 방법 |
| ES2934646T3 (es) * | 2013-04-05 | 2023-02-23 | Dolby Int Ab | Sistema de procesamiento de audio |
| CN105229733B (zh) * | 2013-05-24 | 2019-03-08 | 杜比国际公司 | 包括音频对象的音频场景的高效编码 |
| WO2014187990A1 (en) | 2013-05-24 | 2014-11-27 | Dolby International Ab | Efficient coding of audio scenes comprising audio objects |
| EP3605532B1 (en) | 2013-05-24 | 2021-09-29 | Dolby International AB | Audio encoder |
| EP2830051A3 (en) | 2013-07-22 | 2015-03-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder, audio decoder, methods and computer program using jointly encoded residual signals |
| EP2838086A1 (en) | 2013-07-22 | 2015-02-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | In an reduction of comb filter artifacts in multi-channel downmix with adaptive phase alignment |
| EP2830332A3 (en) | 2013-07-22 | 2015-03-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method, signal processing unit, and computer program for mapping a plurality of input channels of an input channel configuration to output channels of an output channel configuration |
| US9646619B2 (en) | 2013-09-12 | 2017-05-09 | Dolby International Ab | Coding of multichannel audio content |
| TWI557724B (zh) * | 2013-09-27 | 2016-11-11 | 杜比實驗室特許公司 | 用於將 n 聲道音頻節目編碼之方法、用於恢復 n 聲道音頻節目的 m 個聲道之方法、被配置成將 n 聲道音頻節目編碼之音頻編碼器及被配置成執行 n 聲道音頻節目的恢復之解碼器 |
| EP2854133A1 (en) | 2013-09-27 | 2015-04-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Generation of a downmix signal |
| WO2015059154A1 (en) * | 2013-10-21 | 2015-04-30 | Dolby International Ab | Audio encoder and decoder |
| RU2648947C2 (ru) | 2013-10-21 | 2018-03-28 | Долби Интернэшнл Аб | Параметрическая реконструкция аудиосигналов |
| WO2015150384A1 (en) | 2014-04-01 | 2015-10-08 | Dolby International Ab | Efficient coding of audio scenes comprising audio objects |
| TWI587286B (zh) * | 2014-10-31 | 2017-06-11 | 杜比國際公司 | 音頻訊號之解碼和編碼的方法及系統、電腦程式產品、與電腦可讀取媒體 |
| CN107818790B (zh) * | 2017-11-16 | 2020-08-11 | 苏州麦迪斯顿医疗科技股份有限公司 | 一种多路音频混音方法及装置 |
| TW202516861A (zh) | 2019-06-26 | 2025-04-16 | 美商杜拜研究特許公司 | 具有改善頻率解析度的低延遲音訊濾波器組 |
| KR102838370B1 (ko) | 2019-09-03 | 2025-07-25 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 역상관 컴포넌트를 갖는 오디오 필터뱅크 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2105269C (en) * | 1992-10-09 | 1998-08-25 | Yair Shoham | Time-frequency interpolation with application to low rate speech coding |
| KR20070001111A (ko) * | 2004-01-28 | 2007-01-03 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 신호를 시간 스케일링하는 방법 및 장치 |
| CA3026267C (en) | 2004-03-01 | 2019-04-16 | Dolby Laboratories Licensing Corporation | Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters |
| CN1930914B (zh) * | 2004-03-04 | 2012-06-27 | 艾格瑞系统有限公司 | 对多声道音频信号进行编码和合成的方法和装置 |
| KR100663729B1 (ko) * | 2004-07-09 | 2007-01-02 | 한국전자통신연구원 | 가상 음원 위치 정보를 이용한 멀티채널 오디오 신호부호화 및 복호화 방법 및 장치 |
| TWI497485B (zh) * | 2004-08-25 | 2015-08-21 | Dolby Lab Licensing Corp | 用以重塑經合成輸出音訊信號之時域包絡以更接近輸入音訊信號之時域包絡的方法 |
| SE0402651D0 (sv) * | 2004-11-02 | 2004-11-02 | Coding Tech Ab | Advanced methods for interpolation and parameter signalling |
| US20070055510A1 (en) | 2005-07-19 | 2007-03-08 | Johannes Hilpert | Concept for bridging the gap between parametric multi-channel audio coding and matrixed-surround multi-channel coding |
| US20080221907A1 (en) | 2005-09-14 | 2008-09-11 | Lg Electronics, Inc. | Method and Apparatus for Decoding an Audio Signal |
| EP1946296A4 (en) * | 2005-09-14 | 2010-01-20 | Lg Electronics Inc | METHOD AND DEVICE FOR DECODING AN AUDIO SIGNAL |
| KR100888474B1 (ko) | 2005-11-21 | 2009-03-12 | 삼성전자주식회사 | 멀티채널 오디오 신호의 부호화/복호화 장치 및 방법 |
| US8290001B2 (en) | 2006-03-29 | 2012-10-16 | Hitachi, Ltd. | Broadband wireless communication resource assigning method, base station apparatus and terminal apparatus |
| EP2070392A2 (en) * | 2006-09-14 | 2009-06-17 | Koninklijke Philips Electronics N.V. | Sweet spot manipulation for a multi-channel signal |
| US7647229B2 (en) * | 2006-10-18 | 2010-01-12 | Nokia Corporation | Time scaling of multi-channel audio signals |
-
2009
- 2009-05-27 EP EP09007086A patent/EP2214161A1/en not_active Withdrawn
-
2010
- 2010-01-12 RU RU2011133700/08A patent/RU2518696C2/ru active
- 2010-01-12 MY MYPI2011003491A patent/MY156497A/en unknown
- 2010-01-12 PL PL10701119T patent/PL2380167T3/pl unknown
- 2010-01-12 CA CA2750272A patent/CA2750272C/en active Active
- 2010-01-12 MX MX2011007924A patent/MX2011007924A/es active IP Right Grant
- 2010-01-12 CN CN201080005944.8A patent/CN102301420B/zh active Active
- 2010-01-12 WO PCT/EP2010/050279 patent/WO2010086216A1/en not_active Ceased
- 2010-01-12 JP JP2011546744A patent/JP5174973B2/ja active Active
- 2010-01-12 EP EP10701119A patent/EP2380167B1/en active Active
- 2010-01-12 SG SG2011053774A patent/SG173138A1/en unknown
- 2010-01-12 KR KR1020117017646A patent/KR101290486B1/ko active Active
- 2010-01-12 AU AU2010209869A patent/AU2010209869B2/en active Active
- 2010-01-12 BR BRPI1005299-2A patent/BRPI1005299B1/pt active IP Right Grant
- 2010-01-12 ES ES10701119T patent/ES2401554T3/es active Active
- 2010-01-13 TW TW099100788A patent/TWI417870B/zh active
- 2010-01-26 AR ARP100100165A patent/AR075163A1/es unknown
-
2011
- 2011-07-22 ZA ZA2011/05417A patent/ZA201105417B/en unknown
- 2011-07-25 US US13/189,621 patent/US8867753B2/en active Active
- 2011-08-26 CO CO11109347A patent/CO6420380A2/es active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| TW201034005A (en) | 2010-09-16 |
| ES2401554T3 (es) | 2013-04-22 |
| KR20110111432A (ko) | 2011-10-11 |
| AU2010209869A1 (en) | 2011-08-25 |
| EP2380167A1 (en) | 2011-10-26 |
| CN102301420B (zh) | 2014-12-24 |
| BRPI1005299A2 (pt) | 2016-12-06 |
| WO2010086216A1 (en) | 2010-08-05 |
| MY156497A (en) | 2016-02-26 |
| MX2011007924A (es) | 2011-08-17 |
| SG173138A1 (en) | 2011-08-29 |
| ZA201105417B (en) | 2012-03-28 |
| HK1163912A1 (en) | 2012-09-14 |
| EP2214161A1 (en) | 2010-08-04 |
| RU2518696C2 (ru) | 2014-06-10 |
| US8867753B2 (en) | 2014-10-21 |
| BRPI1005299B1 (pt) | 2020-11-24 |
| KR101290486B1 (ko) | 2013-07-26 |
| CA2750272A1 (en) | 2010-08-05 |
| AU2010209869B2 (en) | 2013-07-11 |
| TWI417870B (zh) | 2013-12-01 |
| CA2750272C (en) | 2015-04-21 |
| EP2380167B1 (en) | 2013-01-02 |
| CO6420380A2 (es) | 2012-04-16 |
| JP2012516461A (ja) | 2012-07-19 |
| PL2380167T3 (pl) | 2013-06-28 |
| RU2011133700A (ru) | 2013-03-10 |
| CN102301420A (zh) | 2011-12-28 |
| US20110317842A1 (en) | 2011-12-29 |
| JP5174973B2 (ja) | 2013-04-03 |
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