JP5118022B2 - オーディオ信号の符号化/復号化方法及び符号化/復号化装置 - Google Patents
オーディオ信号の符号化/復号化方法及び符号化/復号化装置 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/88—Stereophonic broadcast systems
- H04H20/89—Stereophonic broadcast systems using three or more audio channels, e.g. triphonic or quadraphonic
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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
- G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
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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
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
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- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Mathematical Physics (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Stereo-Broadcasting Methods (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Description
Claims (6)
- オーディオ信号をデコードする方法であって、
ダウンミックス信号と、該ダウンミックス信号に結合フレームとして付加された空間情報フレームを受信するステップであって、前記空間情報フレームは、マルチチャンネルオーディオ信号を生成するために前記ダウンミックス信号に適用されるパラメータを含む、ステップと、
前記空間情報フレームのヘッダが前記結合フレームに含まれているかどうかを示す識別情報を抽出するステップであって、前記識別情報は前記結合フレームのヘッダから抽出される、ステップと、
前記識別情報に基づいて前記空間情報フレームのヘッダから前記ヘッダデータを抽出するステップと、
前記空間情報フレームのヘッダデータに基づいて、前記空間情報フレームから前記パラメータを抽出するステップと、
前記パラメータを前記ダウンミックス信号に適用することによって、前記マルチチャンネルオーディオ信号を生成するステップと、
を有する方法。 - 前記結合フレームのヘッダは、該結合フレームのヘッダの始点を識別する同期ビットを含む、請求項1に記載の方法。
- オーディオ信号をデコードする装置であって、
ダウンミックス信号と、該ダウンミックス信号に結合フレームとして付加された空間情報フレームを受信する手段であって、前記空間情報フレームは、マルチチャンネルオーディオ信号を生成するために前記ダウンミックス信号に適用されるパラメータを含む、手段と、
前記空間情報フレームのヘッダが前記結合フレームに含まれているかどうかを示す識別情報を抽出する手段であって、前記識別情報は前記結合フレームのヘッダから抽出される、手段と、
前記識別情報に基づいて前記空間情報フレームのヘッダから前記ヘッダデータを抽出する手段と、
前記空間情報フレームのヘッダデータに基づいて、前記空間情報フレームから前記パラメータを抽出する手段と、
前記パラメータを前記ダウンミックス信号に適用することによって、前記マルチチャンネルオーディオ信号を生成する手段と、
を備える装置。 - 前記結合フレームのヘッダは、該結合フレームのヘッダの始点を識別する同期ビットを含む、請求項3に記載の装置。
- オーディオ信号をエンコードする方法であって、
マルチチャンネルオーディオ信号をダウンミックスすることによって、ダウンミックス信号を生成するステップと、
前記ダウンミックス信号をデコードするための空間情報フレームを生成するステップであって、前記空間情報フレームは、前記マルチチャンネルオーディオ信号を生成するために前記ダウンミックス信号に適用されるパラメータを含む、ステップと、
前記ダウンミックス信号に前記空間情報フレームを結合フレームとして付加するステップと、を有し、
前記結合フレームは該結合フレームのヘッダを含み、該結合フレームのヘッダは、前記空間情報フレームのヘッダが前記結合フレームに含まれるかどうかを指示する識別情報を含む、方法。 - オーディオ信号をエンコードする装置であって、
マルチチャンネルオーディオ信号をダウンミックスすることによって、ダウンミックス信号を生成する手段と、
前記ダウンミックス信号をデコードするための空間情報フレームを生成する手段であって、前記空間情報フレームは、前記マルチチャンネルオーディオ信号を生成するために前記ダウンミックス信号に適用されるパラメータを含む、手段と、
前記ダウンミックス信号に前記空間情報フレームを結合フレームとして付加する手段と、を備え、
前記結合フレームは該結合フレームのヘッダを含み、該結合フレームのヘッダは、前記空間情報フレームのヘッダが前記結合フレームに含まれるかどうかを指示する識別情報を含む、装置。
Applications Claiming Priority (15)
Application Number | Priority Date | Filing Date | Title |
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US68457805P | 2005-05-26 | 2005-05-26 | |
US60/684,578 | 2005-05-26 | ||
US75860806P | 2006-01-13 | 2006-01-13 | |
US60/758,608 | 2006-01-13 | ||
US78717206P | 2006-03-30 | 2006-03-30 | |
US60/787,172 | 2006-03-30 | ||
KR10-2006-0030661 | 2006-04-04 | ||
KR1020060030661A KR20060122694A (ko) | 2005-05-26 | 2006-04-04 | 두 채널 이상의 다운믹스 오디오 신호에 공간 정보비트스트림을 삽입하는 방법 |
KR10-2006-0030660 | 2006-04-04 | ||
KR10-2006-0030658 | 2006-04-04 | ||
KR1020060030658A KR20060122692A (ko) | 2005-05-26 | 2006-04-04 | 공간 정보 비트스트림이 임베드된 다운믹스 오디오 신호를인코딩 및 디코딩하는 방법 |
KR1020060030660A KR20060122693A (ko) | 2005-05-26 | 2006-04-04 | 다운믹스된 오디오 신호에 공간 정보 비트스트림을삽입하는 프레임 크기 조절방법 |
KR10-2006-0046972 | 2006-05-25 | ||
KR1020060046972A KR20060122734A (ko) | 2005-05-26 | 2006-05-25 | 공간 정보의 전송방법을 선택할 수 있는 오디오 신호의부호화-복호화방법 |
PCT/KR2006/002021 WO2006126859A2 (en) | 2005-05-26 | 2006-05-26 | Method of encoding and decoding an audio signal |
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JP2008542819A JP2008542819A (ja) | 2008-11-27 |
JP2008542819A5 JP2008542819A5 (ja) | 2009-01-15 |
JP5118022B2 true JP5118022B2 (ja) | 2013-01-16 |
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JP2008513379A Pending JP2008542816A (ja) | 2005-05-26 | 2006-05-26 | オーディオ信号の符号化及び復号化方法 |
JP2008513381A Active JP5461835B2 (ja) | 2005-05-26 | 2006-05-26 | オーディオ信号の符号化/復号化方法及び符号化/復号化装置 |
JP2008513380A Active JP5452915B2 (ja) | 2005-05-26 | 2006-05-26 | オーディオ信号の符号化/復号化方法及び符号化/復号化装置 |
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JP2008513381A Active JP5461835B2 (ja) | 2005-05-26 | 2006-05-26 | オーディオ信号の符号化/復号化方法及び符号化/復号化装置 |
JP2008513380A Active JP5452915B2 (ja) | 2005-05-26 | 2006-05-26 | オーディオ信号の符号化/復号化方法及び符号化/復号化装置 |
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US (4) | US8090586B2 (ja) |
EP (4) | EP1897084A2 (ja) |
JP (4) | JP5118022B2 (ja) |
WO (4) | WO2006126856A2 (ja) |
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EP1899959A2 (en) | 2008-03-19 |
JP2008542818A (ja) | 2008-11-27 |
EP1905004A2 (en) | 2008-04-02 |
US20090216541A1 (en) | 2009-08-27 |
JP5452915B2 (ja) | 2014-03-26 |
JP2008542816A (ja) | 2008-11-27 |
WO2006126859A2 (en) | 2006-11-30 |
WO2006126859A3 (en) | 2007-01-11 |
WO2006126857A2 (en) | 2006-11-30 |
EP1899960A2 (en) | 2008-03-19 |
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