ES2439693T3 - Codificación de señales de múltiples canales - Google Patents
Codificación de señales de múltiples canales Download PDFInfo
- Publication number
- ES2439693T3 ES2439693T3 ES04809080.7T ES04809080T ES2439693T3 ES 2439693 T3 ES2439693 T3 ES 2439693T3 ES 04809080 T ES04809080 T ES 04809080T ES 2439693 T3 ES2439693 T3 ES 2439693T3
- Authority
- ES
- Spain
- Prior art keywords
- channel
- restriction
- signal
- filter
- adaptive filter
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims abstract description 59
- 230000003044 adaptive effect Effects 0.000 claims abstract description 35
- 230000005236 sound signal Effects 0.000 claims abstract description 18
- 238000001228 spectrum Methods 0.000 claims abstract description 14
- 238000013459 approach Methods 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 12
- 238000001914 filtration Methods 0.000 description 12
- 238000005457 optimization Methods 0.000 description 7
- 230000006978 adaptation Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
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- 238000012805 post-processing Methods 0.000 description 3
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- 230000000875 corresponding effect Effects 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
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- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
- H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
-
- 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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Filters That Use Time-Delay Elements (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0303499A SE0303499D0 (sv) | 2003-12-19 | 2003-12-19 | Multi-channel coding using gain-shape constrained filters |
| SE0303499 | 2003-12-19 | ||
| SE0400415 | 2004-02-20 | ||
| SE0400415A SE527713C2 (sv) | 2003-12-19 | 2004-02-20 | Kodning av polyfoniska signaler med villkorsbegränsade filter |
| PCT/SE2004/001907 WO2005059901A1 (fr) | 2003-12-19 | 2004-12-15 | Codage sur filtre en mode contraint pour signaux polyphoniques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2439693T3 true ES2439693T3 (es) | 2014-01-24 |
Family
ID=31996352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES04809080.7T Active ES2439693T3 (es) | 2003-12-19 | 2004-12-15 | Codificación de señales de múltiples canales |
Country Status (8)
| Country | Link |
|---|---|
| EP (2) | EP1639580B1 (fr) |
| JP (1) | JP4323520B2 (fr) |
| DK (1) | DK1639580T3 (fr) |
| ES (1) | ES2439693T3 (fr) |
| PL (1) | PL1639580T3 (fr) |
| PT (1) | PT1639580E (fr) |
| SE (1) | SE527713C2 (fr) |
| WO (1) | WO2005059901A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2008016098A1 (ja) * | 2006-08-04 | 2009-12-24 | パナソニック株式会社 | ステレオ音声符号化装置、ステレオ音声復号装置およびこれらの方法 |
| WO2010042024A1 (fr) * | 2008-10-10 | 2010-04-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Codage audio multicanal conservant l'énergie |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5434948A (en) | 1989-06-15 | 1995-07-18 | British Telecommunications Public Limited Company | Polyphonic coding |
| NL9100173A (nl) | 1991-02-01 | 1992-09-01 | Philips Nv | Subbandkodeerinrichting, en een zender voorzien van de kodeerinrichting. |
| US5285498A (en) * | 1992-03-02 | 1994-02-08 | At&T Bell Laboratories | Method and apparatus for coding audio signals based on perceptual model |
| SE9700772D0 (sv) | 1997-03-03 | 1997-03-03 | Ericsson Telefon Ab L M | A high resolution post processing method for a speech decoder |
| WO2003009206A1 (fr) * | 2001-07-19 | 2003-01-30 | Sungwoo Kim | Systeme et procede pour exploiter un dispositif de telecommunication mobile afin de mettre en oeuvre de l'argent electronique |
| WO2003009208A1 (fr) * | 2001-07-20 | 2003-01-30 | Medical Research Group | Procede et appareil de communication par telemetrie entre un dispositif medical a application ambulatoire et un dispositif de commande utilisant des donnees aleatoires |
| DE60311794T2 (de) | 2002-04-22 | 2007-10-31 | Koninklijke Philips Electronics N.V. | Signalsynthese |
-
2004
- 2004-02-20 SE SE0400415A patent/SE527713C2/sv unknown
- 2004-12-15 DK DK04809080.7T patent/DK1639580T3/da active
- 2004-12-15 JP JP2006518597A patent/JP4323520B2/ja not_active Expired - Fee Related
- 2004-12-15 EP EP04809080.7A patent/EP1639580B1/fr active Active
- 2004-12-15 PT PT48090807T patent/PT1639580E/pt unknown
- 2004-12-15 WO PCT/SE2004/001907 patent/WO2005059901A1/fr not_active Application Discontinuation
- 2004-12-15 ES ES04809080.7T patent/ES2439693T3/es active Active
- 2004-12-15 EP EP12154099A patent/EP2456236A1/fr not_active Ceased
- 2004-12-15 PL PL04809080T patent/PL1639580T3/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP1639580B1 (fr) | 2013-10-23 |
| DK1639580T3 (da) | 2014-01-13 |
| JP2007527543A (ja) | 2007-09-27 |
| JP4323520B2 (ja) | 2009-09-02 |
| SE0400415L (sv) | 2005-06-20 |
| EP2456236A1 (fr) | 2012-05-23 |
| SE527713C2 (sv) | 2006-05-23 |
| WO2005059901A1 (fr) | 2005-06-30 |
| PT1639580E (pt) | 2013-11-19 |
| PL1639580T3 (pl) | 2014-04-30 |
| SE0400415D0 (sv) | 2004-02-20 |
| EP1639580A1 (fr) | 2006-03-29 |
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