MX2010005418A - Formacion de ruido por redondeo para transformacion entera basada en codificacion y descodificacion. - Google Patents

Formacion de ruido por redondeo para transformacion entera basada en codificacion y descodificacion.

Info

Publication number
MX2010005418A
MX2010005418A MX2010005418A MX2010005418A MX2010005418A MX 2010005418 A MX2010005418 A MX 2010005418A MX 2010005418 A MX2010005418 A MX 2010005418A MX 2010005418 A MX2010005418 A MX 2010005418A MX 2010005418 A MX2010005418 A MX 2010005418A
Authority
MX
Mexico
Prior art keywords
lossless
integer
signal
noise shaping
level
Prior art date
Application number
MX2010005418A
Other languages
English (en)
Inventor
Peter Jax
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of MX2010005418A publication Critical patent/MX2010005418A/es

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Classifications

    • 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
    • G10L19/02—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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • G10L19/02—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
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS 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
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • G10L19/26—Pre-filtering or post-filtering

Landscapes

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

Abstract

La MDCT entera es usada en la codificación de audio sin pérdida. Sin embargo, una transformación reversible entera se divide en pasos de elevación consecutivos, cada uno de los cuales introduce errores de redondeo considerados a la señal. Este problema se vuelve más significativo al menor nivel de la señal útil a ser codificada. Sin la formación del ruido., el ruido del error de redondeo tendrá impacto sobre todas las bandejas de frecuencia de la señal transformada igualmente. Este es un problema particular para bandejas de frecuencia en las cuales el nivel de señal real es bajo. La invención limita un impacto del ruido del error de redondeo proveniente con, o resultante, de cada paso de elevación en la transformación reversible entera sobre la velocidad de datos de un codec sin pérdida. Los coeficientes de filtro de un filtro de formación de ruido adaptable para los coeficientes de transformación son adaptados en pasos de elevación individuales de acuerdo a las características de la señal en el dominio de tiempo actual. Como una alternativa, puede ser agregado un prefiltro autorregresivo en la parte frontal de la transformación sin pérdidas, llegar a un aumento del nivel de regiones de frecuencia sin menor energía para hacer disminuir el dominio de los errores de redondeo en esas áreas. Ambos procesos puede ser combinados para mejorar aún más la relación de compresión de un codec sin pérdidas.
MX2010005418A 2007-11-23 2008-11-10 Formacion de ruido por redondeo para transformacion entera basada en codificacion y descodificacion. MX2010005418A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07121440A EP2063417A1 (en) 2007-11-23 2007-11-23 Rounding noise shaping for integer transform based encoding and decoding
PCT/EP2008/065189 WO2009065748A1 (en) 2007-11-23 2008-11-10 Rounding noise shaping for integer transform based encoding and decoding

Publications (1)

Publication Number Publication Date
MX2010005418A true MX2010005418A (es) 2010-10-26

Family

ID=40225570

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010005418A MX2010005418A (es) 2007-11-23 2008-11-10 Formacion de ruido por redondeo para transformacion entera basada en codificacion y descodificacion.

Country Status (11)

Country Link
US (1) US8503535B2 (es)
EP (2) EP2063417A1 (es)
JP (1) JP4961042B2 (es)
KR (1) KR20100113065A (es)
CN (1) CN101868822B (es)
BR (1) BRPI0820467A2 (es)
CA (1) CA2705228A1 (es)
MX (1) MX2010005418A (es)
PT (1) PT2215631E (es)
RU (1) RU2530926C2 (es)
WO (1) WO2009065748A1 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103923989B (zh) 2008-05-28 2016-04-27 花王株式会社 耐热菌类的检测方法
KR101425290B1 (ko) * 2009-10-08 2014-08-01 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 멀티-모드 오디오 신호 디코더, 멀티-모드 오디오 신호 인코더 및 선형-예측-코딩 기반의 노이즈 성형을 사용하는 방법 및 컴퓨터 프로그램
US9883207B2 (en) * 2009-12-31 2018-01-30 Thomson Licensing Dtv Methods and apparatus for adaptive coupled pre-processing and post-processing filters for video encoding and decoding
TR201900411T4 (tr) * 2011-04-05 2019-02-21 Nippon Telegraph & Telephone Akustik sinyal kodu çözme.
PL397008A1 (pl) * 2011-11-17 2013-05-27 Politechnika Poznanska Sposób kodowania obrazu
EP4250727A3 (en) * 2014-03-16 2023-12-06 Vid Scale, Inc. Method and apparatus for the signaling of lossless video coding
WO2018201113A1 (en) * 2017-04-28 2018-11-01 Dts, Inc. Audio coder window and transform implementations
WO2019013363A1 (ko) * 2017-07-10 2019-01-17 엘지전자 주식회사 영상 코딩 시스템에서 주파수 도메인 잡음 감소 방법 및 장치
JP7084638B2 (ja) * 2017-09-29 2022-06-15 国立大学法人 名古屋工業大学 ノイズシェーピング機能を有する再量子化装置およびノイズシェーピング機能を有する信号圧縮装置およびノイズシェーピング機能を有する信号送信装置
KR20210128251A (ko) 2020-04-16 2021-10-26 (주)진영기계 유압실린더를 동력원으로 한 토글 프레스
CN118571234A (zh) * 2023-02-28 2024-08-30 华为技术有限公司 音频编解码方法及相关装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2201654C2 (ru) * 1997-12-23 2003-03-27 Томсон Лайсенсинг С.А. Способ низкошумового кодирования и декодирования
DE10217297A1 (de) * 2002-04-18 2003-11-06 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Codieren eines zeitdiskreten Audiosignals und Vorrichtung und Verfahren zum Decodieren von codierten Audiodaten
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
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
US7451082B2 (en) * 2003-08-27 2008-11-11 Texas Instruments Incorporated Noise-resistant utterance detector
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
DE602004013031T2 (de) * 2003-10-10 2009-05-14 Agency For Science, Technology And Research Verfahren zum codieren eines digitalen signals in einen skalierbaren bitstrom, verfahren zum decodieren eines skalierbaren bitstroms

Also Published As

Publication number Publication date
CA2705228A1 (en) 2009-05-28
CN101868822A (zh) 2010-10-20
PT2215631E (pt) 2012-06-26
CN101868822B (zh) 2012-05-30
EP2063417A1 (en) 2009-05-27
KR20100113065A (ko) 2010-10-20
BRPI0820467A2 (pt) 2015-06-16
EP2215631A1 (en) 2010-08-11
US8503535B2 (en) 2013-08-06
WO2009065748A1 (en) 2009-05-28
JP2011505728A (ja) 2011-02-24
EP2215631B1 (en) 2012-05-16
RU2530926C2 (ru) 2014-10-20
RU2010125613A (ru) 2011-12-27
US20100309983A1 (en) 2010-12-09
JP4961042B2 (ja) 2012-06-27

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