JP5351302B2 - He−aacデコーダ及びmpegサラウンドデコーダを用いてマルチチャネルオーディオ信号を復元する方法 - Google Patents
He−aacデコーダ及びmpegサラウンドデコーダを用いてマルチチャネルオーディオ信号を復元する方法 Download PDFInfo
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- JP5351302B2 JP5351302B2 JP2012087303A JP2012087303A JP5351302B2 JP 5351302 B2 JP5351302 B2 JP 5351302B2 JP 2012087303 A JP2012087303 A JP 2012087303A JP 2012087303 A JP2012087303 A JP 2012087303A JP 5351302 B2 JP5351302 B2 JP 5351302B2
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- 230000005236 sound signal Effects 0.000 title claims description 37
- 238000000034 method Methods 0.000 title claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000003111 delayed effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 description 19
- 238000003786 synthesis reaction Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 10
- 238000004590 computer program Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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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
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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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
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- 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
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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
- G10L19/04—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
- G10L19/18—Vocoders using multiple modes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Theoretical Computer Science (AREA)
- Stereophonic System (AREA)
Description
Claims (1)
- 実数QMF領域、複素数QMF領域、時間領域のうち、少なくとも1つのダウンミックス信号及び付加情報ビットストリームを用いてマルチチャネルオーディオ信号を生成するMPEGサラウンドデコード方法であって、
前記時間領域のダウンミックス信号が前記マルチチャネルオーディオ信号の生成に用いられる場合に、前記時間領域のダウンミックス信号をQMF解析するステップと、
前記QMF解析部の出力信号または前記複素数QMF領域のダウンミックス信号に低電力モードの実数−複素数の変換において導入される遅延を適用するステップと、
前記遅延された信号及びQMF残余入力信号にナイキスト解析を行うステップと、
を含むことを特徴とするMPEGサラウンドデコード方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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KR10-2006-0062609 | 2006-07-04 | ||
KR20060062609 | 2006-07-04 | ||
KR20060065948 | 2006-07-13 | ||
KR10-2006-0065948 | 2006-07-13 |
Related Parent Applications (1)
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JP2009517995A Division JP5256196B2 (ja) | 2006-07-04 | 2007-07-04 | He−aacデコーダ及びmpegサラウンドデコーダを用いてマルチチャネルオーディオ信号を復元する装置及び方法 |
Publications (2)
Publication Number | Publication Date |
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JP2012155332A JP2012155332A (ja) | 2012-08-16 |
JP5351302B2 true JP5351302B2 (ja) | 2013-11-27 |
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Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
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JP2009517995A Expired - Fee Related JP5256196B2 (ja) | 2006-07-04 | 2007-07-04 | He−aacデコーダ及びmpegサラウンドデコーダを用いてマルチチャネルオーディオ信号を復元する装置及び方法 |
JP2012087303A Expired - Fee Related JP5351302B2 (ja) | 2006-07-04 | 2012-04-06 | He−aacデコーダ及びmpegサラウンドデコーダを用いてマルチチャネルオーディオ信号を復元する方法 |
JP2012087315A Active JP5508464B2 (ja) | 2006-07-04 | 2012-04-06 | He−aacデコーダ及びmpegサラウンドデコーダを用いてマルチチャネルオーディオ信号を復元する装置 |
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JP2009517995A Expired - Fee Related JP5256196B2 (ja) | 2006-07-04 | 2007-07-04 | He−aacデコーダ及びmpegサラウンドデコーダを用いてマルチチャネルオーディオ信号を復元する装置及び方法 |
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JP2012087315A Active JP5508464B2 (ja) | 2006-07-04 | 2012-04-06 | He−aacデコーダ及びmpegサラウンドデコーダを用いてマルチチャネルオーディオ信号を復元する装置 |
Country Status (7)
Country | Link |
---|---|
US (3) | US8611547B2 (ja) |
EP (4) | EP2469511B1 (ja) |
JP (3) | JP5256196B2 (ja) |
KR (3) | KR100931309B1 (ja) |
CN (3) | CN101578654B (ja) |
ES (2) | ES2405311T3 (ja) |
WO (1) | WO2008004812A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2469511B1 (en) * | 2006-07-04 | 2015-03-18 | Electronics and Telecommunications Research Institute | Apparatus for restoring multi-channel audio signal using HE-AAC decoder and MPEG surround decoder |
EP2717261A1 (en) | 2012-10-05 | 2014-04-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Encoder, decoder and methods for backward compatible multi-resolution spatial-audio-object-coding |
RU2622872C2 (ru) | 2013-04-05 | 2017-06-20 | Долби Интернэшнл Аб | Аудиокодер и декодер для кодирования по форме волны с перемежением |
CN108806704B (zh) | 2013-04-19 | 2023-06-06 | 韩国电子通信研究院 | 多信道音频信号处理装置及方法 |
US9319819B2 (en) * | 2013-07-25 | 2016-04-19 | Etri | Binaural rendering method and apparatus for decoding multi channel audio |
JP6299202B2 (ja) * | 2013-12-16 | 2018-03-28 | 富士通株式会社 | オーディオ符号化装置、オーディオ符号化方法、オーディオ符号化プログラム及びオーディオ復号装置 |
US10225675B2 (en) | 2015-02-17 | 2019-03-05 | Electronics And Telecommunications Research Institute | Multichannel signal processing method, and multichannel signal processing apparatus for performing the method |
US10008214B2 (en) | 2015-09-11 | 2018-06-26 | Electronics And Telecommunications Research Institute | USAC audio signal encoding/decoding apparatus and method for digital radio services |
US10217467B2 (en) | 2016-06-20 | 2019-02-26 | Qualcomm Incorporated | Encoding and decoding of interchannel phase differences between audio signals |
WO2018213580A1 (en) | 2017-05-19 | 2018-11-22 | Merit Medical Systems, Inc. | Rotating biopsy needle |
US11793498B2 (en) | 2017-05-19 | 2023-10-24 | Merit Medical Systems, Inc. | Biopsy needle devices and methods of use |
CN109360574B (zh) * | 2018-10-18 | 2022-06-21 | 恒玄科技(上海)股份有限公司 | 一种无线蓝牙系统改进的高级音频编码/解码方法及系统 |
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EP0287741B1 (en) | 1987-04-22 | 1993-03-31 | International Business Machines Corporation | Process for varying speech speed and device for implementing said process |
US5568142A (en) | 1994-10-20 | 1996-10-22 | Massachusetts Institute Of Technology | Hybrid filter bank analog/digital converter |
KR19980073528A (ko) * | 1997-03-15 | 1998-11-05 | 구자홍 | 엠펙시스템 복호기장치 |
JP3982354B2 (ja) * | 2002-07-15 | 2007-09-26 | ソニー株式会社 | 画像データ再生装置及び方法 |
US7647221B2 (en) * | 2003-04-30 | 2010-01-12 | The Directv Group, Inc. | Audio level control for compressed audio |
JP2005101370A (ja) | 2003-09-25 | 2005-04-14 | Kyocera Corp | 高周波用配線基板 |
KR100547890B1 (ko) | 2004-01-12 | 2006-01-31 | 삼성전자주식회사 | 가입자 분배망을 하나의 보드로 구현하기 위한방송통신융합시스템 |
SE0400998D0 (sv) * | 2004-04-16 | 2004-04-16 | Cooding Technologies Sweden Ab | Method for representing multi-channel audio signals |
KR20060122692A (ko) * | 2005-05-26 | 2006-11-30 | 엘지전자 주식회사 | 공간 정보 비트스트림이 임베드된 다운믹스 오디오 신호를인코딩 및 디코딩하는 방법 |
US7917561B2 (en) * | 2005-09-16 | 2011-03-29 | Coding Technologies Ab | Partially complex modulated filter bank |
KR20070037986A (ko) * | 2005-10-04 | 2007-04-09 | 엘지전자 주식회사 | 다채널 오디오 신호의 처리방법 및 그 장치 |
US20070092086A1 (en) * | 2005-10-24 | 2007-04-26 | Pang Hee S | Removing time delays in signal paths |
EP2469511B1 (en) * | 2006-07-04 | 2015-03-18 | Electronics and Telecommunications Research Institute | Apparatus for restoring multi-channel audio signal using HE-AAC decoder and MPEG surround decoder |
AU2007328614B2 (en) * | 2006-12-07 | 2010-08-26 | Lg Electronics Inc. | A method and an apparatus for processing an audio signal |
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- 2007-07-04 EP EP20120158539 patent/EP2469511B1/en not_active Not-in-force
- 2007-07-04 EP EP20110184461 patent/EP2410523B1/en active Active
- 2007-07-04 CN CN2007800327793A patent/CN101578654B/zh not_active Expired - Fee Related
- 2007-07-04 KR KR20070067101A patent/KR100931309B1/ko active IP Right Grant
- 2007-07-04 US US12/307,289 patent/US8611547B2/en active Active
- 2007-07-04 JP JP2009517995A patent/JP5256196B2/ja not_active Expired - Fee Related
- 2007-07-04 CN CN201110378155.5A patent/CN102592598B/zh not_active Expired - Fee Related
- 2007-07-04 EP EP20120158538 patent/EP2469510B1/en not_active Not-in-force
- 2007-07-04 ES ES11184461T patent/ES2405311T3/es active Active
- 2007-07-04 CN CN2011103779396A patent/CN102394063B/zh active Active
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