BRPI0611505A2 - reconfiguração de canal com informação secundária - Google Patents
reconfiguração de canal com informação secundária Download PDFInfo
- Publication number
- BRPI0611505A2 BRPI0611505A2 BRPI0611505-5A BRPI0611505A BRPI0611505A2 BR PI0611505 A2 BRPI0611505 A2 BR PI0611505A2 BR PI0611505 A BRPI0611505 A BR PI0611505A BR PI0611505 A2 BRPI0611505 A2 BR PI0611505A2
- Authority
- BR
- Brazil
- Prior art keywords
- audio
- channel
- signals
- modification
- audio signal
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 claims abstract description 261
- 238000012545 processing Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims description 90
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- 239000011159 matrix material Substances 0.000 claims description 72
- 238000009795 derivation Methods 0.000 claims description 12
- 230000003247 decreasing effect Effects 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 32
- 230000006870 function Effects 0.000 description 55
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- 238000010586 diagram Methods 0.000 description 15
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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
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
- H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation of the pseudo five- or more-channel type, e.g. virtual surround
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mathematical Physics (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Theoretical Computer Science (AREA)
- Stereophonic System (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68710805P | 2005-06-03 | 2005-06-03 | |
| US60/687,108 | 2005-06-03 | ||
| US71183105P | 2005-08-26 | 2005-08-26 | |
| US60/711,831 | 2005-08-26 | ||
| PCT/US2006/020882 WO2006132857A2 (en) | 2005-06-03 | 2006-05-26 | Apparatus and method for encoding audio signals with decoding instructions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BRPI0611505A2 true BRPI0611505A2 (pt) | 2010-09-08 |
Family
ID=37498915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0611505-5A BRPI0611505A2 (pt) | 2005-06-03 | 2006-05-26 | reconfiguração de canal com informação secundária |
Country Status (13)
| Country | Link |
|---|---|
| US (2) | US20080033732A1 (https=) |
| EP (1) | EP1927102A2 (https=) |
| JP (1) | JP5191886B2 (https=) |
| KR (1) | KR101251426B1 (https=) |
| CN (1) | CN101228575B (https=) |
| AU (1) | AU2006255662B2 (https=) |
| BR (1) | BRPI0611505A2 (https=) |
| CA (1) | CA2610430C (https=) |
| IL (1) | IL187724A (https=) |
| MX (1) | MX2007015118A (https=) |
| MY (1) | MY149255A (https=) |
| TW (1) | TWI424754B (https=) |
| WO (1) | WO2006132857A2 (https=) |
Families Citing this family (66)
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| US7610205B2 (en) | 2002-02-12 | 2009-10-27 | Dolby Laboratories Licensing Corporation | High quality time-scaling and pitch-scaling of audio signals |
| ATE390683T1 (de) | 2004-03-01 | 2008-04-15 | Dolby Lab Licensing Corp | Mehrkanalige audiocodierung |
| US7508947B2 (en) | 2004-08-03 | 2009-03-24 | Dolby Laboratories Licensing Corporation | Method for combining audio signals using auditory scene analysis |
| TWI393121B (zh) * | 2004-08-25 | 2013-04-11 | 杜比實驗室特許公司 | 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式 |
| JP4988716B2 (ja) | 2005-05-26 | 2012-08-01 | エルジー エレクトロニクス インコーポレイティド | オーディオ信号のデコーディング方法及び装置 |
| WO2006126844A2 (en) * | 2005-05-26 | 2006-11-30 | Lg Electronics Inc. | Method and apparatus for decoding an audio signal |
| EP1927102A2 (en) | 2005-06-03 | 2008-06-04 | Dolby Laboratories Licensing Corporation | Apparatus and method for encoding audio signals with decoding instructions |
| KR100857105B1 (ko) * | 2005-09-14 | 2008-09-05 | 엘지전자 주식회사 | 오디오 신호의 디코딩 방법 및 장치 |
| US20080221907A1 (en) * | 2005-09-14 | 2008-09-11 | Lg Electronics, Inc. | Method and Apparatus for Decoding an Audio Signal |
| WO2007083952A1 (en) * | 2006-01-19 | 2007-07-26 | Lg Electronics Inc. | Method and apparatus for processing a media signal |
| CN101410891A (zh) * | 2006-02-03 | 2009-04-15 | 韩国电子通信研究院 | 使用空间线索控制多目标或多声道音频信号的渲染的方法和装置 |
| KR100902899B1 (ko) | 2006-02-07 | 2009-06-15 | 엘지전자 주식회사 | 부호화/복호화 장치 및 방법 |
| CN101411214B (zh) * | 2006-03-28 | 2011-08-10 | 艾利森电话股份有限公司 | 用于多信道环绕声音的解码器的方法和装置 |
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| US8379868B2 (en) * | 2006-05-17 | 2013-02-19 | Creative Technology Ltd | Spatial audio coding based on universal spatial cues |
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| DE102006050068B4 (de) * | 2006-10-24 | 2010-11-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Erzeugen eines Umgebungssignals aus einem Audiosignal, Vorrichtung und Verfahren zum Ableiten eines Mehrkanal-Audiosignals aus einem Audiosignal und Computerprogramm |
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| US8509092B2 (en) * | 2008-04-21 | 2013-08-13 | Nec Corporation | System, apparatus, method, and program for signal analysis control and signal control |
| EP2144230A1 (en) | 2008-07-11 | 2010-01-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Low bitrate audio encoding/decoding scheme having cascaded switches |
| US8315396B2 (en) | 2008-07-17 | 2012-11-20 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating audio output signals using object based metadata |
| KR101392546B1 (ko) * | 2008-09-11 | 2014-05-08 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 마이크로폰 신호를 기반으로 공간 큐의 세트를 제공하는 장치, 방법 및 컴퓨터 프로그램과, 2채널 오디오 신호 및 공간 큐의 세트를 제공하는 장치 |
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| EP2398257B1 (en) * | 2008-12-18 | 2017-05-10 | Dolby Laboratories Licensing Corporation | Audio channel spatial translation |
| TWI449442B (zh) | 2009-01-14 | 2014-08-11 | Dolby Lab Licensing Corp | 用於無回授之頻域主動矩陣解碼的方法與系統 |
| 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 |
| JP5564803B2 (ja) * | 2009-03-06 | 2014-08-06 | ソニー株式会社 | 音響機器及び音響処理方法 |
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| FR2954570B1 (fr) | 2009-12-23 | 2012-06-08 | Arkamys | Procede de codage/decodage d'un flux numerique stereo ameliore et dispositif de codage/decodage associe |
| EP2522016A4 (en) * | 2010-01-06 | 2015-04-22 | Lg Electronics Inc | DEVICE FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREFOR |
| EP4645307B1 (en) * | 2010-08-25 | 2026-04-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | An apparatus for encoding an audio signal having a plurality of channels |
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| TWI618050B (zh) | 2013-02-14 | 2018-03-11 | 杜比實驗室特許公司 | 用於音訊處理系統中之訊號去相關的方法及設備 |
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-
2006
- 2006-05-26 EP EP06771568A patent/EP1927102A2/en not_active Withdrawn
- 2006-05-26 CN CN2006800266155A patent/CN101228575B/zh not_active Expired - Fee Related
- 2006-05-26 CA CA2610430A patent/CA2610430C/en not_active Expired - Fee Related
- 2006-05-26 KR KR1020077030480A patent/KR101251426B1/ko not_active Expired - Fee Related
- 2006-05-26 WO PCT/US2006/020882 patent/WO2006132857A2/en not_active Ceased
- 2006-05-26 BR BRPI0611505-5A patent/BRPI0611505A2/pt not_active IP Right Cessation
- 2006-05-26 JP JP2008514770A patent/JP5191886B2/ja not_active Expired - Fee Related
- 2006-05-26 MX MX2007015118A patent/MX2007015118A/es active IP Right Grant
- 2006-05-26 AU AU2006255662A patent/AU2006255662B2/en not_active Ceased
- 2006-05-29 MY MYPI20062455A patent/MY149255A/en unknown
- 2006-05-30 TW TW095119160A patent/TWI424754B/zh not_active IP Right Cessation
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2007
- 2007-07-31 US US11/888,662 patent/US20080033732A1/en not_active Abandoned
- 2007-11-28 IL IL187724A patent/IL187724A/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| AU2006255662B2 (en) | 2012-08-23 |
| CA2610430C (en) | 2016-02-23 |
| TW200715901A (en) | 2007-04-16 |
| WO2006132857A2 (en) | 2006-12-14 |
| KR101251426B1 (ko) | 2013-04-05 |
| TWI424754B (zh) | 2014-01-21 |
| IL187724A (en) | 2015-03-31 |
| CN101228575A (zh) | 2008-07-23 |
| US8280743B2 (en) | 2012-10-02 |
| MX2007015118A (es) | 2008-02-14 |
| EP1927102A2 (en) | 2008-06-04 |
| JP2008543227A (ja) | 2008-11-27 |
| WO2006132857A3 (en) | 2007-05-24 |
| CA2610430A1 (en) | 2006-12-14 |
| US20080033732A1 (en) | 2008-02-07 |
| US20080097750A1 (en) | 2008-04-24 |
| JP5191886B2 (ja) | 2013-05-08 |
| CN101228575B (zh) | 2012-09-26 |
| IL187724A0 (en) | 2008-08-07 |
| AU2006255662A1 (en) | 2006-12-14 |
| MY149255A (en) | 2013-07-31 |
| KR20080015886A (ko) | 2008-02-20 |
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