HK1060431A1 - Method and device for processing time-discrete audio sampled values. - Google Patents

Method and device for processing time-discrete audio sampled values.

Info

Publication number
HK1060431A1
HK1060431A1 HK04103402A HK04103402A HK1060431A1 HK 1060431 A1 HK1060431 A1 HK 1060431A1 HK 04103402 A HK04103402 A HK 04103402A HK 04103402 A HK04103402 A HK 04103402A HK 1060431 A1 HK1060431 A1 HK 1060431A1
Authority
HK
Hong Kong
Prior art keywords
integer
lifting
values
matrix
inverse
Prior art date
Application number
HK04103402A
Other languages
English (en)
Inventor
Ralf Geiger
Thomas Sporer
Jurgen Koller
Karlheinz Brandenburg
Jurgen Herre
Original Assignee
Fraunhofer Ges Forschung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of HK1060431A1 publication Critical patent/HK1060431A1/xx

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/0212—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 using orthogonal transformation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
HK04103402A 2001-06-18 2004-05-14 Method and device for processing time-discrete audio sampled values. HK1060431A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10129240A DE10129240A1 (de) 2001-06-18 2001-06-18 Verfahren und Vorrichtung zum Verarbeiten von zeitdiskreten Audio-Abtastwerten
PCT/EP2002/005865 WO2002103684A1 (de) 2001-06-18 2002-05-28 Verfahren und vorrichtung zum verarbeiten von zeitdiskreten audio-abtastwerten

Publications (1)

Publication Number Publication Date
HK1060431A1 true HK1060431A1 (en) 2004-08-06

Family

ID=7688520

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04103402A HK1060431A1 (en) 2001-06-18 2004-05-14 Method and device for processing time-discrete audio sampled values.

Country Status (7)

Country Link
US (1) US7512539B2 (xx)
EP (1) EP1397799B1 (xx)
JP (1) JP3814611B2 (xx)
AT (1) ATE282883T1 (xx)
DE (2) DE10129240A1 (xx)
HK (1) HK1060431A1 (xx)
WO (1) WO2002103684A1 (xx)

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DE10331803A1 (de) * 2003-07-14 2005-02-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Umsetzen in eine transformierte Darstellung oder zum inversen Umsetzen der transformierten Darstellung
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JP2007507790A (ja) * 2003-09-29 2007-03-29 エージェンシー フォー サイエンス，テクノロジー アンド リサーチ 時間ドメインから周波数ドメインへ及びそれとは逆にデジタル信号を変換する方法
DE10345995B4 (de) * 2003-10-02 2005-07-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Verarbeiten eines Signals mit einer Sequenz von diskreten Werten
DE10345996A1 (de) * 2003-10-02 2005-04-28 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Verarbeiten von wenigstens zwei Eingangswerten
EP1564650A1 (en) * 2004-02-17 2005-08-17 Deutsche Thomson-Brandt Gmbh Method and apparatus for transforming a digital audio signal and for inversely transforming a transformed digital audio signal
US7835904B2 (en) * 2006-03-03 2010-11-16 Microsoft Corp. Perceptual, scalable audio compression
RU2451998C2 (ru) * 2007-09-19 2012-05-27 Квэлкомм Инкорпорейтед Эффективный способ проектирования набора фильтров для mdct/imdct в приложениях для кодирования речи и аудиосигналов
US8548815B2 (en) * 2007-09-19 2013-10-01 Qualcomm Incorporated Efficient design of MDCT / IMDCT filterbanks for speech and audio coding applications
US20100265800A1 (en) * 2009-04-16 2010-10-21 Graham Paul Eatwell Array shape estimation using directional sensors
WO2012070866A2 (ko) * 2010-11-24 2012-05-31 엘지전자 주식회사 스피치 시그널 부호화 방법 및 복호화 방법
PL3239978T3 (pl) 2011-02-14 2019-07-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kodowanie i dekodowanie pozycji impulsów ścieżek sygnału audio
CA2827249C (en) 2011-02-14 2016-08-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing a decoded audio signal in a spectral domain
BR112012029132B1 (pt) * 2011-02-14 2021-10-05 Fraunhofer - Gesellschaft Zur Förderung Der Angewandten Forschung E.V Representação de sinal de informações utilizando transformada sobreposta
JP5625126B2 (ja) 2011-02-14 2014-11-12 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 スペクトル領域ノイズ整形を使用する線形予測ベースコーディングスキーム
KR101525185B1 (ko) 2011-02-14 2015-06-02 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 트랜지언트 검출 및 품질 결과를 사용하여 일부분의 오디오 신호를 코딩하기 위한 장치 및 방법
US9613634B2 (en) * 2014-06-19 2017-04-04 Yang Gao Control of acoustic echo canceller adaptive filter for speech enhancement
US9923549B2 (en) 2015-09-09 2018-03-20 Raytheon Company Discrete time polyphase channelizer
US9703991B2 (en) 2015-09-09 2017-07-11 Raytheon Company Discrete time current multiplier circuit
US10200075B2 (en) 2016-03-04 2019-02-05 Raytheon Company Discrete time analog signal processing for simultaneous transmit and receive
CN110892478A (zh) 2017-04-28 2020-03-17 Dts公司 音频编解码器窗口和变换实现

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US7275036B2 (en) * 2002-04-18 2007-09-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for coding a time-discrete audio signal to obtain coded audio data and for decoding coded audio data
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DE10236694A1 (de) * 2002-08-09 2004-02-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum skalierbaren Codieren und Vorrichtung und Verfahren zum skalierbaren Decodieren
US7315822B2 (en) * 2003-10-20 2008-01-01 Microsoft Corp. System and method for a media codec employing a reversible transform obtained via matrix lifting

Also Published As

Publication number Publication date
US7512539B2 (en) 2009-03-31
DE10129240A1 (de) 2003-01-02
EP1397799B1 (de) 2004-11-17
EP1397799A1 (de) 2004-03-17
JP3814611B2 (ja) 2006-08-30
US20040220805A1 (en) 2004-11-04
JP2004531151A (ja) 2004-10-07
WO2002103684A1 (de) 2002-12-27
DE50201579D1 (de) 2004-12-23
ATE282883T1 (de) 2004-12-15

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