KR100875428B1 - 신호 처리에서 시간 지연을 보상하는 방법 - Google Patents
신호 처리에서 시간 지연을 보상하는 방법 Download PDFInfo
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- KR100875428B1 KR100875428B1 KR1020087007449A KR20087007449A KR100875428B1 KR 100875428 B1 KR100875428 B1 KR 100875428B1 KR 1020087007449 A KR1020087007449 A KR 1020087007449A KR 20087007449 A KR20087007449 A KR 20087007449A KR 100875428 B1 KR100875428 B1 KR 100875428B1
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- 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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- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
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- 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
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Abstract
Description
Claims (27)
- 다운믹스 신호와 공간 정보를 포함하는 오디오 신호를 수신하는 단계;제 1 도메인의 다운믹스 신호를 제 2 도메인의 다운믹스 신호로 변환하는 단계;상기 제 2 도메인의 다운믹스 신호를 제 3 도메인의 다운믹스 신호로 변환하는 단계; 및상기 제 3 도메인의 다운믹스 신호와 상기 공간 정보를 결합하는 단계를 포함하되,상기 결합된 공간 정보는 상기 변환 과정의 경과 시간에 기초하여 지연된 것을 특징으로 하는 오디오 신호 처리 방법.
- 제 1 항에 있어서,상기 제 2 도메인 다운믹스 신호로 변환하는 단계는,시간 도메인의 다운믹스 신호를 주파수 도메인의 다운믹스 신호로 변환하는 것을 특징으로 하는 오디오 신호 처리 방법.
- 제 2 항에 있어서,상기 주파수 도메인은 QMF 도메인을 포함하는 것을 특징으로 하는 오디오 신호 처리 방법.
- 제 1 항에 있어서,상기 제 3 도메인의 다운믹스 신호로 변환하는 단계는,상기 제 2 도메인의 다운믹스 신호를 리얼 QMF 신호(Quadrature Mirror Filter real signal)에서 콤플렉스 QMF 신호(Quadrature Mirror Filter complex signal)로 변환하는 것을 특징으로 하는 오디오 신호 처리 방법.
- 제 1 항에 있어서,상기 제 3 도메인의 다운믹스 신호로 변환하는 단계는,상기 제 2 도메인의 다운믹스 신호를 콤플렉스 QMF 신호에서 리얼 QMF 신호로 변환하는 것을 특징으로 하는 오디오 신호 처리 방법.
- 삭제
- 제 1 항에 있어서,상기 공간 정보의 총 지연 시간은 961 시간 샘플들인 것을 특징으로 하는 오디오 신호 처리 방법.
- 다운믹스 신호와 공간 정보를 포함하는 오디오 신호를 수신하는 오디오 신호 수신부;제 1 도메인의 다운믹스 신호를 제 2 도메인의 다운믹스 신호로 변환하는 제 1 다운믹스 신호 변환부;상기 제 2 도메인의 다운믹스 신호를 제 3 도메인의 다운믹스 신호로 변환하는 제 2 다운믹스 신호 변환부; 및상기 제 3 도메인의 다운믹스 신호와 상기 공간 정보를 결합하는 공간 정보 결합부를 포함하되,상기 결합된 공간 정보는 상기 제 1 다운믹스 신호 변환부 및 상기 제 2 다운믹스 신호 변환부에서 경과된 시간에 기초하여 지연된 것을 특징으로 하는 오디오 신호 처리 장치.
- 제 8 항에 있어서,상기 제 1 다운믹스 신호 변환부는 시간 도메인의 다운믹스 신호를 주파수 도메인의 다운믹스 신호로 변환하는 것을 특징으로 하는 오디오 신호 처리 장치.
- 제 9 항에 있어서,상기 주파수 도메인은 QMF 도메인을 포함하는 것을 특징으로 하는 오디오 신호 처리 장치.
- 제 8 항에 있어서,상기 제 2 다운믹스 신호 변환부는, 상기 제 2 도메인의 다운믹스 신호를 리얼 QMF 신호(Quadrature Mirror Filter real signal)에서 콤플렉스 QMF 신호(Quadrature Mirror Filter complex signal)로 변환하는 것을 특징으로 하는 오디오 신호 처리 장치.
- 제 8 항에 있어서,상기 제 2 다운믹스 신호 변환부는,상기 제 2 도메인의 다운믹스 신호를 콤플렉스 QMF 신호에서 리얼 QMF 신호로 변환하는 것을 특징으로 하는 오디오 신호 처리 장치
- 삭제
- 다운믹스 신호와 공간 정보를 포함하는 오디오 신호를 수신하는 단계;제 1 도메인의 다운믹스 신호를 제 2 도메인의 다운믹스 신호로 변환하는 단계;상기 제 2 도메인의 다운믹스 신호를 제 3 도메인의 다운믹스 신호로 변환하는 단계; 및상기 제 3 도메인의 다운믹스 신호와 상기 공간 정보를 결합하는 단계를 포함하되,상기 결합된 공간 정보는 상기 변환 과정의 경과 시간에 기초하여 지연된 것을 프로세서가 수행하도록 하는 지시 정보를 저장하고 있는, 컴퓨터로 읽을 수 있는 매체.
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Applications Claiming Priority (21)
Application Number | Priority Date | Filing Date | Title |
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US72922505P | 2005-10-24 | 2005-10-24 | |
US60/729,225 | 2005-10-24 | ||
US75700506P | 2006-01-09 | 2006-01-09 | |
US60/757,005 | 2006-01-09 | ||
US78674006P | 2006-03-29 | 2006-03-29 | |
US60/786,740 | 2006-03-29 | ||
US79232906P | 2006-04-17 | 2006-04-17 | |
US60/792,329 | 2006-04-17 | ||
KR1020060078219A KR20070074442A (ko) | 2006-01-09 | 2006-08-18 | 다채널 오디오 복원 장치 및 방법과 이 장치에서 수행되는프로그램을 기록한 컴퓨터로 읽을 수 있는 기록 매체 |
KR1020060078223A KR20070037986A (ko) | 2005-10-04 | 2006-08-18 | 다채널 오디오 신호의 처리방법 및 그 장치 |
KR1020060078221 | 2006-08-18 | ||
KR1020060078219 | 2006-08-18 | ||
KR1020060078221A KR20070037984A (ko) | 2005-10-04 | 2006-08-18 | 다채널 오디오 신호의 디코딩 방법 및 그 장치 |
KR1020060078218A KR20070037983A (ko) | 2005-10-04 | 2006-08-18 | 다채널 오디오 신호의 디코딩 방법 및 부호화된 오디오신호 생성방법 |
KR1020060078225 | 2006-08-18 | ||
KR1020060078218 | 2006-08-18 | ||
KR1020060078222A KR20070037985A (ko) | 2005-10-04 | 2006-08-18 | 다채널 오디오 신호의 디코딩 방법 및 그 장치 |
KR1020060078223 | 2006-08-18 | ||
KR1020060078222 | 2006-08-18 | ||
KR1020060078225A KR20070037987A (ko) | 2005-10-04 | 2006-08-18 | 다채널 오디오 신호의 디코딩 방법 및 장치 |
PCT/KR2006/003973 WO2007049862A1 (en) | 2005-10-24 | 2006-10-02 | Removing time delays in signal paths |
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KR1020087023852A Division KR101186611B1 (ko) | 2005-10-24 | 2006-10-02 | 오디오 신호의 처리 방법 및 이의 장치 |
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KR20080040785A KR20080040785A (ko) | 2008-05-08 |
KR100875428B1 true KR100875428B1 (ko) | 2008-12-22 |
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KR1020087007450A KR100888971B1 (ko) | 2005-10-24 | 2006-10-02 | 신호 처리에서 시간 지연을 보상하는 방법 |
KR1020087007452A KR100888972B1 (ko) | 2005-10-24 | 2006-10-02 | 신호 처리에서 시간 지연을 보상하는 방법 |
KR1020087007454A KR100888974B1 (ko) | 2005-10-24 | 2006-10-02 | 신호 처리에서 시간 지연을 보상하는 방법 |
KR1020087023852A KR101186611B1 (ko) | 2005-10-24 | 2006-10-02 | 오디오 신호의 처리 방법 및 이의 장치 |
KR1020087007453A KR100888973B1 (ko) | 2005-10-24 | 2006-10-02 | 신호 처리에서 시간 지연을 보상하는 방법 |
KR1020087030528A KR100928268B1 (ko) | 2005-10-24 | 2006-10-02 | 신호 처리에서 시간 지연을 보상하는 방법 |
KR1020087007449A KR100875428B1 (ko) | 2005-10-24 | 2006-10-02 | 신호 처리에서 시간 지연을 보상하는 방법 |
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KR1020087007450A KR100888971B1 (ko) | 2005-10-24 | 2006-10-02 | 신호 처리에서 시간 지연을 보상하는 방법 |
KR1020087007452A KR100888972B1 (ko) | 2005-10-24 | 2006-10-02 | 신호 처리에서 시간 지연을 보상하는 방법 |
KR1020087007454A KR100888974B1 (ko) | 2005-10-24 | 2006-10-02 | 신호 처리에서 시간 지연을 보상하는 방법 |
KR1020087023852A KR101186611B1 (ko) | 2005-10-24 | 2006-10-02 | 오디오 신호의 처리 방법 및 이의 장치 |
KR1020087007453A KR100888973B1 (ko) | 2005-10-24 | 2006-10-02 | 신호 처리에서 시간 지연을 보상하는 방법 |
KR1020087030528A KR100928268B1 (ko) | 2005-10-24 | 2006-10-02 | 신호 처리에서 시간 지연을 보상하는 방법 |
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US (8) | US20070092086A1 (ko) |
EP (6) | EP1952674B1 (ko) |
JP (6) | JP5270357B2 (ko) |
KR (7) | KR100888971B1 (ko) |
CN (6) | CN101297597B (ko) |
AU (1) | AU2006306942B2 (ko) |
BR (1) | BRPI0617779A2 (ko) |
CA (1) | CA2626132C (ko) |
HK (1) | HK1126071A1 (ko) |
TW (6) | TWI317244B (ko) |
WO (6) | WO2007049862A1 (ko) |
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FR2911020B1 (fr) * | 2006-12-28 | 2009-05-01 | Actimagine Soc Par Actions Sim | Procede et dispositif de codage audio |
FR2911031B1 (fr) * | 2006-12-28 | 2009-04-10 | Actimagine Soc Par Actions Sim | Procede et dispositif de codage audio |
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GB2453117B (en) * | 2007-09-25 | 2012-05-23 | Motorola Mobility Inc | Apparatus and method for encoding a multi channel audio signal |
EP2128856A4 (en) * | 2007-10-16 | 2011-11-02 | Panasonic Corp | DEVICE FOR PRODUCING A STREAM AND DECODING DEVICE AND CORRESPONDING METHOD |
TWI407362B (zh) * | 2008-03-28 | 2013-09-01 | Hon Hai Prec Ind Co Ltd | 播放裝置及其音頻輸出方法 |
US8380523B2 (en) | 2008-07-07 | 2013-02-19 | Lg Electronics Inc. | Method and an apparatus for processing an audio signal |
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