SE527713C2 - Kodning av polyfoniska signaler med villkorsbegränsade filter - Google Patents
Kodning av polyfoniska signaler med villkorsbegränsade filterInfo
- Publication number
- SE527713C2 SE527713C2 SE0400415A SE0400415A SE527713C2 SE 527713 C2 SE527713 C2 SE 527713C2 SE 0400415 A SE0400415 A SE 0400415A SE 0400415 A SE0400415 A SE 0400415A SE 527713 C2 SE527713 C2 SE 527713C2
- Authority
- SE
- Sweden
- Prior art keywords
- filter
- signal
- channel
- signals
- parameters
- Prior art date
Links
- 230000003595 spectral effect Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 56
- 230000002787 reinforcement Effects 0.000 claims description 9
- 230000008447 perception Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 230000006870 function Effects 0.000 claims description 2
- 238000009795 derivation Methods 0.000 claims 3
- 238000001914 filtration Methods 0.000 abstract description 12
- 230000003044 adaptive effect Effects 0.000 abstract description 5
- 238000012805 post-processing Methods 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 14
- 230000005236 sound signal Effects 0.000 description 10
- 238000013459 approach Methods 0.000 description 9
- 238000005457 optimization Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000008033 biological extinction Effects 0.000 description 3
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- 230000002159 abnormal effect Effects 0.000 description 1
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- 230000015556 catabolic process Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
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- 230000002194 synthesizing effect Effects 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)
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0400415A SE527713C2 (sv) | 2003-12-19 | 2004-02-20 | Kodning av polyfoniska signaler med villkorsbegränsade filter |
| DK04809080.7T DK1639580T3 (da) | 2003-12-19 | 2004-12-15 | Kodning af flerkanalssignaler |
| ES04809080.7T ES2439693T3 (es) | 2003-12-19 | 2004-12-15 | Codificación de señales de múltiples canales |
| PCT/SE2004/001907 WO2005059901A1 (en) | 2003-12-19 | 2004-12-15 | Constrained filter encoding of polyphonic signals |
| PT48090807T PT1639580E (pt) | 2003-12-19 | 2004-12-15 | Codificação de sinais de multicanais |
| EP12154099A EP2456236A1 (en) | 2003-12-19 | 2004-12-15 | Constrained filter encoding of polyphonic signals |
| JP2006518597A JP4323520B2 (ja) | 2003-12-19 | 2004-12-15 | ポリフォニック信号の制約付きフィルタ符号化 |
| PL04809080T PL1639580T3 (pl) | 2003-12-19 | 2004-12-15 | Kodowanie sygnałów wielokanałowych |
| EP04809080.7A EP1639580B1 (en) | 2003-12-19 | 2004-12-15 | Coding of multi-channel signals |
| US11/011,764 US7725324B2 (en) | 2003-12-19 | 2004-12-15 | Constrained filter encoding of polyphonic signals |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0303499A SE0303499D0 (sv) | 2003-12-19 | 2003-12-19 | Multi-channel coding using gain-shape constrained filters |
| SE0400415A SE527713C2 (sv) | 2003-12-19 | 2004-02-20 | Kodning av polyfoniska signaler med villkorsbegränsade filter |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE0400415D0 SE0400415D0 (sv) | 2004-02-20 |
| SE0400415L SE0400415L (sv) | 2005-06-20 |
| SE527713C2 true SE527713C2 (sv) | 2006-05-23 |
Family
ID=31996352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE0400415A SE527713C2 (sv) | 2003-12-19 | 2004-02-20 | Kodning av polyfoniska signaler med villkorsbegränsade filter |
Country Status (8)
| Country | Link |
|---|---|
| EP (2) | EP2456236A1 (es) |
| JP (1) | JP4323520B2 (es) |
| DK (1) | DK1639580T3 (es) |
| ES (1) | ES2439693T3 (es) |
| PL (1) | PL1639580T3 (es) |
| PT (1) | PT1639580E (es) |
| SE (1) | SE527713C2 (es) |
| WO (1) | WO2005059901A1 (es) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008016098A1 (en) * | 2006-08-04 | 2008-02-07 | Panasonic Corporation | Stereo audio encoding device, stereo audio decoding device, and method thereof |
| WO2010042024A1 (en) * | 2008-10-10 | 2010-04-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Energy conservative multi-channel audio coding |
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 (en) * | 2001-07-19 | 2003-01-30 | Sungwoo Kim | The system and operational method of mobile telecommunication device for electronic cash |
| WO2003009208A1 (en) * | 2001-07-20 | 2003-01-30 | Medical Research Group | Method and apparatus for communicating between an ambulatory medical device and a control device via telemetry using randomized data |
| DE60311794C5 (de) | 2002-04-22 | 2022-11-10 | Koninklijke Philips 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 PL PL04809080T patent/PL1639580T3/pl unknown
- 2004-12-15 EP EP12154099A patent/EP2456236A1/en not_active Ceased
- 2004-12-15 WO PCT/SE2004/001907 patent/WO2005059901A1/en not_active Ceased
- 2004-12-15 ES ES04809080.7T patent/ES2439693T3/es not_active Expired - Lifetime
- 2004-12-15 PT PT48090807T patent/PT1639580E/pt unknown
- 2004-12-15 JP JP2006518597A patent/JP4323520B2/ja not_active Expired - Fee Related
- 2004-12-15 EP EP04809080.7A patent/EP1639580B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1639580A1 (en) | 2006-03-29 |
| EP2456236A1 (en) | 2012-05-23 |
| JP4323520B2 (ja) | 2009-09-02 |
| DK1639580T3 (da) | 2014-01-13 |
| EP1639580B1 (en) | 2013-10-23 |
| PL1639580T3 (pl) | 2014-04-30 |
| WO2005059901A1 (en) | 2005-06-30 |
| SE0400415D0 (sv) | 2004-02-20 |
| JP2007527543A (ja) | 2007-09-27 |
| SE0400415L (sv) | 2005-06-20 |
| PT1639580E (pt) | 2013-11-19 |
| ES2439693T3 (es) | 2014-01-24 |
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