ATE343207T1 - Verfahren und einheit zur subtraktion des quantisierungsrauschen von einem pcm-signal - Google Patents

Verfahren und einheit zur subtraktion des quantisierungsrauschen von einem pcm-signal

Info

Publication number
ATE343207T1
ATE343207T1 AT02790650T AT02790650T ATE343207T1 AT E343207 T1 ATE343207 T1 AT E343207T1 AT 02790650 T AT02790650 T AT 02790650T AT 02790650 T AT02790650 T AT 02790650T AT E343207 T1 ATE343207 T1 AT E343207T1
Authority
AT
Austria
Prior art keywords
mrow
pcm signal
quantization noise
msubsup
mtd
Prior art date
Application number
AT02790650T
Other languages
English (en)
Inventor
Ercan F Gigi
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE343207T1 publication Critical patent/ATE343207T1/de

Links

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
    • 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
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise
    • H03M1/0854—Continuously compensating for, or preventing, undesired influence of physical parameters of noise of quantisation noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth
    • H04B14/048—Non linear compression or expansion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/926—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
AT02790650T 2002-01-25 2002-12-23 Verfahren und einheit zur subtraktion des quantisierungsrauschen von einem pcm-signal ATE343207T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02075312 2002-01-25

Publications (1)

Publication Number Publication Date
ATE343207T1 true ATE343207T1 (de) 2006-11-15

Family

ID=27589141

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02790650T ATE343207T1 (de) 2002-01-25 2002-12-23 Verfahren und einheit zur subtraktion des quantisierungsrauschen von einem pcm-signal

Country Status (8)

Country Link
US (1) US7453942B2 (de)
EP (1) EP1472693B1 (de)
JP (1) JP4286666B2 (de)
KR (1) KR100984637B1 (de)
CN (1) CN100414606C (de)
AT (1) ATE343207T1 (de)
DE (1) DE60215547T2 (de)
WO (1) WO2003063160A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1494040A1 (de) * 2003-06-30 2005-01-05 Sulzer Markets and Technology AG Verfahren zur Kompensation von Quantisierungsrauschen, sowie die Verwendung des Verfahrens
CN101501761B (zh) * 2006-08-15 2012-02-08 杜比实验室特许公司 无需边信息对时域噪声包络的任意整形
ATE531038T1 (de) * 2007-06-14 2011-11-15 France Telecom Nachbearbeitung zur reduzierung des quantifizierungsrauschens eines codierers während der decodierung
KR101336891B1 (ko) 2008-12-19 2013-12-04 한국전자통신연구원 Ｇ.711 코덱의 음질 향상을 위한 부호화 장치 및 복호화 장치
FR2941339B1 (fr) * 2009-01-19 2011-02-18 Spidcom Technologies Procede et dispositif de reduction du bruit de quantification pour la transmission d'un signal multiporteuse
JP2015149690A (ja) * 2014-02-10 2015-08-20 ソニー株式会社 信号処理装置および方法
CN105842561B (zh) * 2016-03-28 2018-06-26 北京航空航天大学 一种适用于现场电磁干扰检测的背景信号消除方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH542552A (de) * 1972-02-01 1973-09-30 Europ Handelsges Anst Einrichtung mit einer Sende- und einer Empfangsstation zum Erzeugen, Umformen und Übertragen von Signalen
US5636295A (en) * 1992-10-07 1997-06-03 Daewoo Electronics Co., Ltd. Apparatus for reducing quantization noise in image signals
JP3334419B2 (ja) * 1995-04-20 2002-10-15 ソニー株式会社 ノイズ低減方法及びノイズ低減装置
US5659622A (en) * 1995-11-13 1997-08-19 Motorola, Inc. Method and apparatus for suppressing noise in a communication system
JP3365908B2 (ja) * 1996-06-20 2003-01-14 株式会社デノン データ変換装置
JP3556066B2 (ja) * 1996-07-10 2004-08-18 コロムビアミュージックエンタテインメント株式会社 歪み検出装置および歪み補正装置および歪み補正方法
US6587984B1 (en) * 1997-03-18 2003-07-01 Nippon Columbia Co., Ltd. Distortion detecting device, distortion correcting device, and distortion correcting method for digital audio signal
CN1192358C (zh) * 1997-12-08 2005-03-09 三菱电机株式会社 声音信号加工方法和声音信号加工装置
EP1386313B1 (de) * 2001-04-09 2006-06-21 Koninklijke Philips Electronics N.V. Vorrichtung zur sprachverbesserung

Also Published As

Publication number Publication date
DE60215547T2 (de) 2007-08-02
JP2005516442A (ja) 2005-06-02
CN1615521A (zh) 2005-05-11
WO2003063160A1 (en) 2003-07-31
EP1472693B1 (de) 2006-10-18
KR20040073589A (ko) 2004-08-19
DE60215547D1 (de) 2006-11-30
JP4286666B2 (ja) 2009-07-01
KR100984637B1 (ko) 2010-10-05
US7453942B2 (en) 2008-11-18
EP1472693A1 (de) 2004-11-03
US20050117656A1 (en) 2005-06-02
CN100414606C (zh) 2008-08-27

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