CN100414606C - 用于从pcm信号中减去量化噪声的方法和单元 - Google Patents
用于从pcm信号中减去量化噪声的方法和单元 Download PDFInfo
- Publication number
- CN100414606C CN100414606C CNB028274733A CN02827473A CN100414606C CN 100414606 C CN100414606 C CN 100414606C CN B028274733 A CNB028274733 A CN B028274733A CN 02827473 A CN02827473 A CN 02827473A CN 100414606 C CN100414606 C CN 100414606C
- Authority
- CN
- China
- Prior art keywords
- pcm signal
- signal
- level
- quantization noise
- noise level
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 238000013139 quantization Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000001228 spectrum Methods 0.000 claims description 33
- 238000001914 filtration Methods 0.000 claims description 14
- 206010038743 Restlessness Diseases 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 2
- 238000011002 quantification Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
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- 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)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
S<sup>*</sup>[n]=i[n] | 3 | 1 | -1 | -1 | 2 | 1 | 1 | 3 | -3 |
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02075312.5 | 2002-01-25 | ||
EP02075312 | 2002-01-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1615521A CN1615521A (zh) | 2005-05-11 |
CN100414606C true CN100414606C (zh) | 2008-08-27 |
Family
ID=27589141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028274733A Expired - Fee Related CN100414606C (zh) | 2002-01-25 | 2002-12-23 | 用于从pcm信号中减去量化噪声的方法和单元 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7453942B2 (zh) |
EP (1) | EP1472693B1 (zh) |
JP (1) | JP4286666B2 (zh) |
KR (1) | KR100984637B1 (zh) |
CN (1) | CN100414606C (zh) |
AT (1) | ATE343207T1 (zh) |
DE (1) | DE60215547T2 (zh) |
WO (1) | WO2003063160A1 (zh) |
Families Citing this family (8)
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 |
DE602007012116D1 (de) * | 2006-08-15 | 2011-03-03 | Dolby Lab Licensing Corp | Arbiträre formung einer temporären rauschhüllkurve ohne nebeninformation |
US8175145B2 (en) * | 2007-06-14 | 2012-05-08 | France Telecom | Post-processing for reducing quantization noise of an encoder during decoding |
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 |
EP3521045B1 (en) | 2016-09-29 | 2021-06-16 | Sato Holdings Kabushiki Kaisha | Printer and printer control method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4151469A (en) * | 1972-02-01 | 1979-04-24 | Anstalt Europaische Handelsgesellschaft | Apparatus equipped with a transmitting and receiving station for generating, converting and transmitting signals |
US5636295A (en) * | 1992-10-07 | 1997-06-03 | Daewoo Electronics Co., Ltd. | Apparatus for reducing quantization noise in image signals |
CN1168204A (zh) * | 1995-11-13 | 1997-12-17 | 摩托罗拉公司 | 通信系统中噪声抑制方法及装置 |
JPH1079667A (ja) * | 1996-07-10 | 1998-03-24 | Nippon Columbia Co Ltd | 歪み検出装置および歪み補正装置および歪み補正方法 |
US5774842A (en) * | 1995-04-20 | 1998-06-30 | Sony Corporation | Noise reduction method and apparatus utilizing filtering of a dithered signal |
CN1281576A (zh) * | 1997-12-08 | 2001-01-24 | 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 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3365908B2 (ja) * | 1996-06-20 | 2003-01-14 | 株式会社デノン | データ変換装置 |
EP1033817A4 (en) * | 1997-03-18 | 2003-01-08 | Nippon Columbia | DISTORTION DETECTOR, DISTORTION CORRECTOR, AND DISTORTION CORRECTION METHOD FOR DIGITAL AUDIO SIGNAL |
WO2002082427A1 (en) * | 2001-04-09 | 2002-10-17 | Koninklijke Philips Electronics N.V. | Speech enhancement device |
-
2002
- 2002-12-23 JP JP2003562931A patent/JP4286666B2/ja not_active Expired - Fee Related
- 2002-12-23 KR KR1020047011472A patent/KR100984637B1/ko not_active IP Right Cessation
- 2002-12-23 US US10/502,282 patent/US7453942B2/en not_active Expired - Fee Related
- 2002-12-23 DE DE60215547T patent/DE60215547T2/de not_active Expired - Lifetime
- 2002-12-23 AT AT02790650T patent/ATE343207T1/de not_active IP Right Cessation
- 2002-12-23 CN CNB028274733A patent/CN100414606C/zh not_active Expired - Fee Related
- 2002-12-23 WO PCT/IB2002/005711 patent/WO2003063160A1/en active IP Right Grant
- 2002-12-23 EP EP02790650A patent/EP1472693B1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4151469A (en) * | 1972-02-01 | 1979-04-24 | Anstalt Europaische Handelsgesellschaft | Apparatus equipped with a transmitting and receiving station for generating, converting and transmitting signals |
US5636295A (en) * | 1992-10-07 | 1997-06-03 | Daewoo Electronics Co., Ltd. | Apparatus for reducing quantization noise in image signals |
US5774842A (en) * | 1995-04-20 | 1998-06-30 | Sony Corporation | Noise reduction method and apparatus utilizing filtering of a dithered signal |
CN1168204A (zh) * | 1995-11-13 | 1997-12-17 | 摩托罗拉公司 | 通信系统中噪声抑制方法及装置 |
JPH1079667A (ja) * | 1996-07-10 | 1998-03-24 | Nippon Columbia Co Ltd | 歪み検出装置および歪み補正装置および歪み補正方法 |
CN1281576A (zh) * | 1997-12-08 | 2001-01-24 | 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 |
Also Published As
Publication number | Publication date |
---|---|
KR100984637B1 (ko) | 2010-10-05 |
CN1615521A (zh) | 2005-05-11 |
ATE343207T1 (de) | 2006-11-15 |
DE60215547D1 (de) | 2006-11-30 |
EP1472693B1 (en) | 2006-10-18 |
US7453942B2 (en) | 2008-11-18 |
DE60215547T2 (de) | 2007-08-02 |
US20050117656A1 (en) | 2005-06-02 |
JP2005516442A (ja) | 2005-06-02 |
JP4286666B2 (ja) | 2009-07-01 |
KR20040073589A (ko) | 2004-08-19 |
EP1472693A1 (en) | 2004-11-03 |
WO2003063160A1 (en) | 2003-07-31 |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: NXP CO., LTD. Free format text: FORMER OWNER: KONINKLIJKE PHILIPS ELECTRONICS N.V. Effective date: 20070914 |
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C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20070914 Address after: Holland Ian Deho Finn Applicant after: Koninkl Philips Electronics NV Address before: Holland Ian Deho Finn Applicant before: Koninklijke Philips Electronics N.V. |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20181223 |
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CF01 | Termination of patent right due to non-payment of annual fee |