JP2007524300A5 - - Google Patents

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JP2007524300A5
JP2007524300A5 JP2006551194A JP2006551194A JP2007524300A5 JP 2007524300 A5 JP2007524300 A5 JP 2007524300A5 JP 2006551194 A JP2006551194 A JP 2006551194A JP 2006551194 A JP2006551194 A JP 2006551194A JP 2007524300 A5 JP2007524300 A5 JP 2007524300A5
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JP
Japan
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spectral component
spectral
source signal
component
transforms
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JP2006551194A
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Japanese (ja)
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JP2007524300A (ja
JP4787176B2 (ja
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Priority claimed from US10/766,681 external-priority patent/US6980933B2/en
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JP2006551194A 2004-01-27 2005-01-14 Ｍｄｃｔ係数から導かれた推定スペクトル強度と位相を使用する改良型コーディングテクニック Expired - Lifetime JP4787176B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/766,681 US6980933B2 (en) 2004-01-27 2004-01-27 Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients
US10/766,681 2004-01-27
PCT/US2005/001499 WO2005073960A1 (en) 2004-01-27 2005-01-14 Improved coding techniques using estimated spectral magnitude and phase derived from mdct coefficients

Publications (3)

Publication Number Publication Date
JP2007524300A JP2007524300A (ja) 2007-08-23
JP2007524300A5 true JP2007524300A5 (https=) 2008-03-06
JP4787176B2 JP4787176B2 (ja) 2011-10-05

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JP2006551194A Expired - Lifetime JP4787176B2 (ja) 2004-01-27 2005-01-14 Ｍｄｃｔ係数から導かれた推定スペクトル強度と位相を使用する改良型コーディングテクニック

Country Status (14)

Country Link
US (6) US6980933B2 (https=)
EP (1) EP1709627B1 (https=)
JP (1) JP4787176B2 (https=)
KR (1) KR101184992B1 (https=)
CN (1) CN1918633B (https=)
AT (1) ATE532174T1 (https=)
AU (1) AU2005208287B2 (https=)
CA (1) CA2553784C (https=)
DK (1) DK1709627T3 (https=)
ES (1) ES2375285T3 (https=)
IL (1) IL176477A (https=)
PL (1) PL1709627T3 (https=)
TW (1) TWI374612B (https=)
WO (1) WO2005073960A1 (https=)

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US6980933B2 (en) 2004-01-27 2005-12-27 Dolby Laboratories Licensing Corporation Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients
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US8214200B2 (en) * 2007-03-14 2012-07-03 Xfrm, Inc. Fast MDCT (modified discrete cosine transform) approximation of a windowed sinusoid
EP2232700B1 (en) 2007-12-21 2014-08-13 Dts Llc System for adjusting perceived loudness of audio signals
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CN101552006B (zh) * 2009-05-12 2011-12-28 武汉大学 加窗信号mdct域的能量及相位调整方法及其装置
KR101924192B1 (ko) * 2009-05-19 2018-11-30 한국전자통신연구원 계층형 정현파 코딩을 이용한 오디오 신호의 인코딩 및 디코딩 방법 및 장치
CN101958119B (zh) * 2009-07-16 2012-02-29 中兴通讯股份有限公司 一种改进的离散余弦变换域音频丢帧补偿器和补偿方法
JP5547810B2 (ja) 2009-07-27 2014-07-16 インダストリー−アカデミック コーペレイション ファウンデイション， ヨンセイ ユニバーシティ オーディオ信号を処理する方法及び装置
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HUE071544T2 (hu) * 2009-10-21 2025-09-28 Dolby Int Ab Túlmintavételezés kombinált transzponáló szûrõbankban
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JP5820464B2 (ja) 2010-04-13 2015-11-24 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン オーディオまたはビデオエンコーダ、オーディオまたはビデオデコーダ、及び予測方向可変の予測を使用したマルチチャンネルオーディオまたはビデオ信号処理方法
JP6185457B2 (ja) * 2011-04-28 2017-08-23 ドルビー・インターナショナル・アーベー 効率的なコンテンツ分類及びラウドネス推定
TWI575962B (zh) * 2012-02-24 2017-03-21 杜比國際公司 部份複數處理之重疊濾波器組中的低延遲實數至複數轉換
US9312829B2 (en) 2012-04-12 2016-04-12 Dts Llc System for adjusting loudness of audio signals in real time
KR101498113B1 (ko) * 2013-10-23 2015-03-04 광주과학기술원 사운드 신호의 대역폭 확장 장치 및 방법
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