JP5161893B2 - オーディオ信号の処理方法及び装置 - Google Patents
オーディオ信号の処理方法及び装置 Download PDFInfo
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- JP5161893B2 JP5161893B2 JP2009553527A JP2009553527A JP5161893B2 JP 5161893 B2 JP5161893 B2 JP 5161893B2 JP 2009553527 A JP2009553527 A JP 2009553527A JP 2009553527 A JP2009553527 A JP 2009553527A JP 5161893 B2 JP5161893 B2 JP 5161893B2
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- 230000005236 sound signal Effects 0.000 title claims description 30
- 238000003672 processing method Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 claims description 23
- 230000001755 vocal effect Effects 0.000 description 57
- 239000000203 mixture Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000013139 quantization Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000004091 panning Methods 0.000 description 7
- 239000000284 extract Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000002123 temporal effect 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
-
- 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
- G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
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- Engineering & Computer Science (AREA)
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- Signal Processing (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Stereophonic System (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Description
Claims (9)
- 少なくとも1つの独立オブジェクト及びバックグラウンドオブジェクトがダウンミックスされたダウンミックス信号を受信し、
オブジェクト情報及びレジデュアル信号を受信し、
前記オブジェクト情報及び前記レジデュアル信号を用いて、前記ダウンミックス信号から少なくとも1つの独立オブジェクトを抽出し、
前記オブジェクト情報と、オブジェクトの位置を制御するためのオブジェクト位置情報及びオブジェクトの利得を制御するためのオブジェクト利得情報のうち少なくとも1つに基づいて生成されるミックス情報と、を用いてマルチチャネル情報を生成し、
前記マルチチャネル情報を前記少なくとも1つの独立オブジェクトに適用することによってマルチチャネル信号を生成し、
前記オブジェクト情報は、前記独立オブジェクトと前記バックグラウンドオブジェクトとの間のレベル情報及び相関情報を含むことを特徴とするオーディオ信号処理方法。 - 前記オブジェクト情報は、前記独立オブジェクト及び前記バックグラウンドオブジェクトに関連する情報に相当することを特徴とする、請求項1に記載のオーディオ信号処理方法。
- 前記レジデュアル信号は、少なくとも1つのオブジェクトベース信号をエンハンストオブジェクトにグルーピングする過程で抽出されたものであることを特徴とする、請求項1に記載のオーディオ信号処理方法。
- 前記独立オブジェクトは、オブジェクトベース信号であり、
前記バックグラウンドオブジェクトは、少なくとも1つのチャネルベース信号を含むか、少なくとも1つのチャネルベース信号がダウンミックスされた信号であることを特徴とする、請求項1に記載のオーディオ信号処理方法。 - 前記バックグラウンドオブジェクトは、左側のチャネル信号及び右側のチャネル信号を含むことを特徴とする、請求項4に記載のオーディオ信号処理方法。
- 前記ダウンミックス信号は、放送信号を介して受信されることを特徴とする、請求項1に記載のオーディオ信号処理方法。
- 前記ダウンミックス信号は、デジタル媒体を介して受信されることを特徴とする、請求項1に記載のオーディオ信号処理方法。
- 請求項1に記載の方法を実行するためのプログラムが保存されたコンピュータ読取可能記録媒体。
- 少なくとも1つの独立オブジェクト及びバックグラウンドオブジェクトがダウンミックスされたダウンミックス信号を受信し、オブジェクト情報及びレジデュアル信号を受信する情報受信部と、
前記オブジェクト情報及び前記レジデュアル信号を用いて、前記ダウンミックス信号から少なくとも1つの独立オブジェクトを抽出する情報生成ユニットと、
前記オブジェクト情報と、オブジェクトの位置を制御するためのオブジェクト位置情報及びオブジェクトの利得を制御するためのオブジェクト利得情報のうち少なくとも1つに基づいて生成されるミックス情報と、を用いてマルチチャネル情報を生成するマルチチャネル情報生成部と、
前記マルチチャネル情報を前記少なくとも1つの独立オブジェクトに適用することによってマルチチャネル信号を生成するマルチチャネルデコーダと、
を含み、
前記オブジェクト情報は、前記独立オブジェクトと前記バックグラウンドオブジェクトとの間のレベル情報及び相関情報を含むことを特徴とするオーディオ信号処理装置。
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
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US89531407P | 2007-03-16 | 2007-03-16 | |
US60/895,314 | 2007-03-16 | ||
KR10-2008-0024247 | 2008-03-17 | ||
KR1020080024248A KR101100214B1 (ko) | 2007-03-16 | 2008-03-17 | 오디오 신호 처리 방법 및 장치 |
KR1020080024247A KR20080084757A (ko) | 2007-03-16 | 2008-03-17 | 오디오 신호 처리 방법 및 장치 |
KR10-2008-0024245 | 2008-03-17 | ||
KR10-2008-0024248 | 2008-03-17 | ||
PCT/KR2008/001497 WO2008114985A1 (en) | 2007-03-16 | 2008-03-17 | A method and an apparatus for processing an audio signal |
KR1020080024245A KR101100213B1 (ko) | 2007-03-16 | 2008-03-17 | 오디오 신호 처리 방법 및 장치 |
Publications (2)
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JP2010521703A JP2010521703A (ja) | 2010-06-24 |
JP5161893B2 true JP5161893B2 (ja) | 2013-03-13 |
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JP2009553527A Active JP5161893B2 (ja) | 2007-03-16 | 2008-03-17 | オーディオ信号の処理方法及び装置 |
JP2009553525A Pending JP2010521866A (ja) | 2007-03-16 | 2008-03-17 | オーディオ信号の処理方法及び装置 |
JP2009553526A Expired - Fee Related JP4851598B2 (ja) | 2007-03-16 | 2008-03-17 | オーディオ信号の処理方法及び装置 |
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JP2009553525A Pending JP2010521866A (ja) | 2007-03-16 | 2008-03-17 | オーディオ信号の処理方法及び装置 |
JP2009553526A Expired - Fee Related JP4851598B2 (ja) | 2007-03-16 | 2008-03-17 | オーディオ信号の処理方法及び装置 |
Country Status (6)
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US (4) | US20100106271A1 (ja) |
EP (3) | EP2137825A4 (ja) |
JP (3) | JP5161893B2 (ja) |
KR (3) | KR20080084757A (ja) |
CN (3) | CN101636917B (ja) |
WO (3) | WO2008114985A1 (ja) |
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KR101187075B1 (ko) * | 2009-01-20 | 2012-09-27 | 엘지전자 주식회사 | 오디오 신호 처리 방법 및 장치 |
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KR101387808B1 (ko) * | 2009-04-15 | 2014-04-21 | 한국전자통신연구원 | 가변 비트율을 갖는 잔차 신호 부호화를 이용한 고품질 다객체 오디오 부호화 및 복호화 장치 |
WO2011083979A2 (en) | 2010-01-06 | 2011-07-14 | Lg Electronics Inc. | An apparatus for processing an audio signal and method thereof |
CN103649706B (zh) * | 2011-03-16 | 2015-11-25 | Dts(英属维尔京群岛)有限公司 | 三维音频音轨的编码及再现 |
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 |
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2008
- 2008-03-17 JP JP2009553527A patent/JP5161893B2/ja active Active
- 2008-03-17 US US12/531,370 patent/US20100106271A1/en not_active Abandoned
- 2008-03-17 EP EP08723534A patent/EP2137825A4/en not_active Ceased
- 2008-03-17 CN CN2008800085799A patent/CN101636917B/zh active Active
- 2008-03-17 US US12/531,444 patent/US8725279B2/en active Active
- 2008-03-17 WO PCT/KR2008/001497 patent/WO2008114985A1/en active Application Filing
- 2008-03-17 KR KR1020080024247A patent/KR20080084757A/ko not_active Application Discontinuation
- 2008-03-17 CN CN2008800086594A patent/CN101636919B/zh not_active Expired - Fee Related
- 2008-03-17 JP JP2009553525A patent/JP2010521866A/ja active Pending
- 2008-03-17 JP JP2009553526A patent/JP4851598B2/ja not_active Expired - Fee Related
- 2008-03-17 KR KR1020080024245A patent/KR101100213B1/ko not_active IP Right Cessation
- 2008-03-17 KR KR1020080024248A patent/KR101100214B1/ko active IP Right Grant
- 2008-03-17 US US12/531,377 patent/US8712060B2/en not_active Expired - Fee Related
- 2008-03-17 EP EP08723533A patent/EP2130304A4/en not_active Ceased
- 2008-03-17 WO PCT/KR2008/001493 patent/WO2008114982A1/en active Application Filing
- 2008-03-17 WO PCT/KR2008/001496 patent/WO2008114984A1/en active Application Filing
- 2008-03-17 CN CN200880008649A patent/CN101636918A/zh active Pending
- 2008-03-17 EP EP08723530A patent/EP2137824A4/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
KR20080084758A (ko) | 2008-09-19 |
US8725279B2 (en) | 2014-05-13 |
KR20080084757A (ko) | 2008-09-19 |
EP2130304A4 (en) | 2012-04-04 |
WO2008114984A1 (en) | 2008-09-25 |
US20140222440A1 (en) | 2014-08-07 |
EP2137825A1 (en) | 2009-12-30 |
JP2010521703A (ja) | 2010-06-24 |
CN101636918A (zh) | 2010-01-27 |
CN101636917B (zh) | 2013-07-24 |
JP2010521867A (ja) | 2010-06-24 |
KR101100214B1 (ko) | 2011-12-28 |
EP2137825A4 (en) | 2012-04-04 |
JP4851598B2 (ja) | 2012-01-11 |
JP2010521866A (ja) | 2010-06-24 |
KR101100213B1 (ko) | 2011-12-28 |
CN101636917A (zh) | 2010-01-27 |
US20100111319A1 (en) | 2010-05-06 |
EP2137824A1 (en) | 2009-12-30 |
CN101636919A (zh) | 2010-01-27 |
US20100106271A1 (en) | 2010-04-29 |
US8712060B2 (en) | 2014-04-29 |
WO2008114985A1 (en) | 2008-09-25 |
CN101636919B (zh) | 2013-10-30 |
US9373333B2 (en) | 2016-06-21 |
WO2008114982A1 (en) | 2008-09-25 |
EP2130304A1 (en) | 2009-12-09 |
EP2137824A4 (en) | 2012-04-04 |
US20100087938A1 (en) | 2010-04-08 |
KR20080084756A (ko) | 2008-09-19 |
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