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
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- 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)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Theoretical Computer Science (AREA)
- Nonlinear Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (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 | 2002-01-25 | ||
EP02075312.5 | 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 |
JP5096468B2 (ja) * | 2006-08-15 | 2012-12-12 | ドルビー ラボラトリーズ ライセンシング コーポレイション | サイド情報なしの時間的ノイズエンベロープの自由な整形 |
JP2010529511A (ja) * | 2007-06-14 | 2010-08-26 | フランス・テレコム | 符号器の量子化ノイズを復号化中に低減するための後処理方法及び装置 |
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***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 |
WO1998042077A1 (fr) * | 1997-03-18 | 1998-09-24 | Nippon Columbia Co., Ltd. | Detecteur de distorsion, correcteur de distorsion, et procede de correction de distorsion pour signal audio numerique |
JP4127792B2 (ja) * | 2001-04-09 | 2008-07-30 | エヌエックスピー ビー ヴィ | 音声強化デバイス |
-
2002
- 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
- 2002-12-23 DE DE60215547T patent/DE60215547T2/de not_active Expired - Lifetime
- 2002-12-23 US US10/502,282 patent/US7453942B2/en not_active Expired - Fee Related
- 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 JP JP2003562931A patent/JP4286666B2/ja not_active Expired - Fee Related
- 2002-12-23 KR KR1020047011472A patent/KR100984637B1/ko not_active IP Right Cessation
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***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 |
---|---|
DE60215547T2 (de) | 2007-08-02 |
KR20040073589A (ko) | 2004-08-19 |
ATE343207T1 (de) | 2006-11-15 |
JP4286666B2 (ja) | 2009-07-01 |
EP1472693A1 (en) | 2004-11-03 |
US20050117656A1 (en) | 2005-06-02 |
EP1472693B1 (en) | 2006-10-18 |
WO2003063160A1 (en) | 2003-07-31 |
JP2005516442A (ja) | 2005-06-02 |
KR100984637B1 (ko) | 2010-10-05 |
CN1615521A (zh) | 2005-05-11 |
US7453942B2 (en) | 2008-11-18 |
DE60215547D1 (de) | 2006-11-30 |
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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 |