BRPI0414618A - dispositivo e método para o processamento de um sinal tendo uma seqüência de valores discretos - Google Patents

dispositivo e método para o processamento de um sinal tendo uma seqüência de valores discretos

Info

Publication number
BRPI0414618A
BRPI0414618A BRPI0414618-2A BRPI0414618A BRPI0414618A BR PI0414618 A BRPI0414618 A BR PI0414618A BR PI0414618 A BRPI0414618 A BR PI0414618A BR PI0414618 A BRPI0414618 A BR PI0414618A
Authority
BR
Brazil
Prior art keywords
sequence
signal
values
frequency range
energy
Prior art date
Application number
BRPI0414618-2A
Other languages
English (en)
Inventor
Ralf Geiger
Gerald Schuller
Thomas Sporer
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 BRPI0414618A publication Critical patent/BRPI0414618A/pt
Publication of BRPI0414618B1 publication Critical patent/BRPI0414618B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • 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
    • 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Communication Control (AREA)
  • Complex Calculations (AREA)

Abstract

DISPOSITIVO E MéTODO PARA O PROCESSAMENTO DE UM SINAL TENDO UMA SEQüêNCIA DE VALORES DISCRETOS". Ao processar um sinal tendo uma seqüência de valores discretos, onde há uma primeira faixa de freqüência na qual o sinal tem alta energia e onde há uma segunda faixa de freqüência na qual o sinal possui baixa energia, a seqüência de valores discretos é primeiramente manipulada (202) para obter uma seqüência de valores manipulados, de modo que pelo menos um dos valores manipulados seja um número não inteiro. Então, a seqüência de valores manipulados é arredondada (204) para obter uma seqüência de valores manipulados. O arredondamento é formado para realizar um formato espectral de um erro de arredondamento gerado de modo que um erro de arredondamento espectralmente formado tenha maior energia na primeira faixa de freqüência do que na segunda faixa de freqüência. Formando espectralmente o erro de arredondamento de modo que o erro de arredondamento não tenha qualquer energia nas áreas de armazenamento onde não há energia de sinal, uma codificação especialmente eficiente é obtida particularmente na conexão com um contexto de codificação sem perdas.
BRPI0414618-2A 2003-10-02 2004-09-28 Dispositivo e método para o processamento de um sinal tendo uma seqüência de valores discretos BRPI0414618B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10345995A DE10345995B4 (de) 2003-10-02 2003-10-02 Vorrichtung und Verfahren zum Verarbeiten eines Signals mit einer Sequenz von diskreten Werten
DE10345995.2 2003-10-02
PCT/EP2004/010854 WO2005034088A1 (de) 2003-10-02 2004-09-28 Vorrichtung und verfahren zum verarbeiten eines signals mit einer sequenz von diskreten werten

Publications (2)

Publication Number Publication Date
BRPI0414618A true BRPI0414618A (pt) 2006-11-07
BRPI0414618B1 BRPI0414618B1 (pt) 2019-02-12

Family

ID=34399211

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0414618-2A BRPI0414618B1 (pt) 2003-10-02 2004-09-28 Dispositivo e método para o processamento de um sinal tendo uma seqüência de valores discretos

Country Status (18)

Country Link
US (1) US7917564B2 (pt)
EP (1) EP1647009B1 (pt)
JP (1) JP4439522B2 (pt)
KR (1) KR100778349B1 (pt)
CN (1) CN1860527B (pt)
AT (1) ATE349753T1 (pt)
AU (1) AU2004278828B2 (pt)
BR (1) BRPI0414618B1 (pt)
CA (1) CA2541116C (pt)
DE (2) DE10345995B4 (pt)
ES (1) ES2278338T3 (pt)
HK (1) HK1096760A1 (pt)
IL (1) IL173730A (pt)
MX (1) MXPA06003620A (pt)
NO (1) NO337159B1 (pt)
PT (1) PT1647009E (pt)
RU (1) RU2325708C2 (pt)
WO (1) WO2005034088A1 (pt)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10345996A1 (de) 2003-10-02 2005-04-28 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Verarbeiten von wenigstens zwei Eingangswerten
EP2063417A1 (en) * 2007-11-23 2009-05-27 Deutsche Thomson OHG Rounding noise shaping for integer transform based encoding and decoding
KR100992675B1 (ko) 2007-12-21 2010-11-05 한국전자통신연구원 오디오 부호화 및 복호화 방법과 그 장치
PL2346030T3 (pl) * 2008-07-11 2015-03-31 Fraunhofer Ges Forschung Koder audio, sposób kodowania sygnału audio oraz program komputerowy
EP3002750B1 (en) * 2008-07-11 2017-11-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder and decoder for encoding and decoding audio samples
ES2592416T3 (es) * 2008-07-17 2016-11-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Esquema de codificación/decodificación de audio que tiene una derivación conmutable
KR101315617B1 (ko) 2008-11-26 2013-10-08 광운대학교 산학협력단 모드 스위칭에 기초하여 윈도우 시퀀스를 처리하는 통합 음성/오디오 부/복호화기
US9384748B2 (en) 2008-11-26 2016-07-05 Electronics And Telecommunications Research Institute Unified Speech/Audio Codec (USAC) processing windows sequence based mode switching
RU2523035C2 (ru) * 2008-12-15 2014-07-20 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Аудио кодер и декодер, увеличивающий полосу частот
EP4224474B1 (en) 2008-12-15 2023-11-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio bandwidth extension decoder, corresponding method and computer program
CA2750795C (en) * 2009-01-28 2015-05-26 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, encoded audio information, methods for encoding and decoding an audio signal and computer program
JP5754899B2 (ja) * 2009-10-07 2015-07-29 ソニー株式会社 復号装置および方法、並びにプログラム
CN102081926B (zh) * 2009-11-27 2013-06-05 中兴通讯股份有限公司 格型矢量量化音频编解码方法和系统
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
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
FR2977439A1 (fr) * 2011-06-28 2013-01-04 France Telecom Fenetres de ponderation en codage/decodage par transformee avec recouvrement, optimisees en retard.
CN103493130B (zh) 2012-01-20 2016-05-18 弗劳恩霍夫应用研究促进协会 用以利用正弦代换进行音频编码及译码的装置和方法
EP2757558A1 (en) 2013-01-18 2014-07-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Time domain level adjustment for audio signal decoding or encoding
EP2830065A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for decoding an encoded audio signal using a cross-over filter around a transition frequency
CN105096957B (zh) 2014-04-29 2016-09-14 华为技术有限公司 处理信号的方法及设备
CN105096958B (zh) 2014-04-29 2017-04-12 华为技术有限公司 音频编码方法及相关装置
US10448053B2 (en) * 2016-02-15 2019-10-15 Qualcomm Incorporated Multi-pass non-separable transforms for video coding
EP3276620A1 (en) 2016-07-29 2018-01-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Time domain aliasing reduction for non-uniform filterbanks which use spectral analysis followed by partial synthesis
CN110892478A (zh) * 2017-04-28 2020-03-17 Dts公司 音频编解码器窗口和变换实现

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02134010A (ja) * 1988-11-15 1990-05-23 Sony Corp 信号処理装置
TW224553B (en) 1993-03-01 1994-06-01 Sony Co Ltd Method and apparatus for inverse discrete consine transform and coding/decoding of moving picture
GB9509831D0 (en) 1995-05-15 1995-07-05 Gerzon Michael A Lossless coding method for waveform data
FR2765419B1 (fr) 1997-06-27 1999-09-17 Thomson Csf Dispositif de generation de signaux analogiques a partir de convertisseurs analogique-numerique, notamment pour la synthese numerique directe
CA2233831A1 (en) * 1998-03-31 1999-09-30 Tom Riley Digital-sigma fractional-n synthesizer
US20050143981A1 (en) 2000-06-06 2005-06-30 Yukio Koyanagi Compressing method and apparatus, expanding method and apparatus, compression and expansion system, recorded medium, program
DE10129240A1 (de) * 2001-06-18 2003-01-02 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Verarbeiten von zeitdiskreten Audio-Abtastwerten
US7197525B2 (en) * 2002-11-26 2007-03-27 Analog Devices, Inc. Method and system for fixed point fast fourier transform with improved SNR
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

Also Published As

Publication number Publication date
AU2004278828B2 (en) 2008-01-10
BRPI0414618B1 (pt) 2019-02-12
MXPA06003620A (es) 2006-06-05
EP1647009A1 (de) 2006-04-19
US7917564B2 (en) 2011-03-29
IL173730A (en) 2010-06-30
CA2541116A1 (en) 2005-04-14
DE10345995A1 (de) 2005-05-12
ATE349753T1 (de) 2007-01-15
CN1860527B (zh) 2010-04-14
WO2005034088A1 (de) 2005-04-14
RU2006110566A (ru) 2007-10-20
NO20061870L (no) 2006-04-28
DE10345995B4 (de) 2005-07-07
IL173730A0 (en) 2006-07-05
JP4439522B2 (ja) 2010-03-24
JP2007510167A (ja) 2007-04-19
CN1860527A (zh) 2006-11-08
RU2325708C2 (ru) 2008-05-27
CA2541116C (en) 2010-12-21
AU2004278828A1 (en) 2005-04-14
EP1647009B1 (de) 2006-12-27
US20060210180A1 (en) 2006-09-21
ES2278338T3 (es) 2007-08-01
DE502004002475D1 (de) 2007-02-08
NO337159B1 (no) 2016-02-01
KR20060054472A (ko) 2006-05-22
HK1096760A1 (en) 2007-06-08
PT1647009E (pt) 2007-03-30
KR100778349B1 (ko) 2007-11-21

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Legal Events

Date Code Title Description
B15K Others concerning applications: alteration of classification

Ipc: G10L 19/00 (2013.01), H04N 19/60 (2014.01), G10L 1

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 12/02/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) 10 (DEZ) ANOS CONTADOS A PARTIR DE 12/02/2019, OBSERVADAS AS CONDICOES LEGAIS