DE69738204D1 - Schnelles syntheseverfahren für die sub-bandfiltrierung für die dekodierung von digitalen signalen - Google Patents
Schnelles syntheseverfahren für die sub-bandfiltrierung für die dekodierung von digitalen signalenInfo
- Publication number
- DE69738204D1 DE69738204D1 DE69738204T DE69738204T DE69738204D1 DE 69738204 D1 DE69738204 D1 DE 69738204D1 DE 69738204 T DE69738204 T DE 69738204T DE 69738204 T DE69738204 T DE 69738204T DE 69738204 D1 DE69738204 D1 DE 69738204D1
- Authority
- DE
- Germany
- Prior art keywords
- digital signals
- synthesis process
- sub band
- decoding digital
- fast synthesis
- 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 - Lifetime
Links
- 230000015572 biosynthetic process Effects 0.000 title 1
- 238000001914 filtration Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000003786 synthesis reaction Methods 0.000 title 1
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
- 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
- G10L19/0204—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 using subband decomposition
- G10L19/0208—Subband vocoders
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/SG1997/000037 WO1999012292A1 (en) | 1997-08-29 | 1997-08-29 | Fast synthesis sub-band filtering method for digital signal decoding |
Publications (1)
Publication Number | Publication Date |
---|---|
DE69738204D1 true DE69738204D1 (de) | 2007-11-22 |
Family
ID=20429566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69738204T Expired - Lifetime DE69738204D1 (de) | 1997-08-29 | 1997-08-29 | Schnelles syntheseverfahren für die sub-bandfiltrierung für die dekodierung von digitalen signalen |
Country Status (4)
Country | Link |
---|---|
US (1) | US8301282B2 (de) |
EP (1) | EP1016231B1 (de) |
DE (1) | DE69738204D1 (de) |
WO (1) | WO1999012292A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI397903B (zh) * | 2005-04-13 | 2013-06-01 | Dolby Lab Licensing Corp | 編碼音訊之節約音量測量技術 |
DK2691951T3 (en) | 2011-03-28 | 2016-11-14 | Dolby Laboratories Licensing Corp | TRANSFORMATION WITH REDUCED COMPLEXITY OF AN Low-Frequency |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8700985A (nl) * | 1987-04-27 | 1988-11-16 | Philips Nv | Systeem voor sub-band codering van een digitaal audiosignaal. |
US5479562A (en) * | 1989-01-27 | 1995-12-26 | Dolby Laboratories Licensing Corporation | Method and apparatus for encoding and decoding audio information |
JP2646778B2 (ja) * | 1990-01-17 | 1997-08-27 | 日本電気株式会社 | ディジタル信号処理装置 |
US5257213A (en) * | 1991-02-20 | 1993-10-26 | Samsung Electronics Co., Ltd. | Method and circuit for two-dimensional discrete cosine transform |
JP2866754B2 (ja) * | 1991-03-27 | 1999-03-08 | 三菱電機株式会社 | 演算処理装置 |
US5642437A (en) * | 1992-02-22 | 1997-06-24 | Texas Instruments Incorporated | System decoder circuit with temporary bit storage and method of operation |
CA2090052C (en) * | 1992-03-02 | 1998-11-24 | Anibal Joao De Sousa Ferreira | Method and apparatus for the perceptual coding of audio signals |
JP3127600B2 (ja) * | 1992-09-11 | 2001-01-29 | ソニー株式会社 | ディジタル信号復号化装置及び方法 |
JPH06112909A (ja) * | 1992-09-28 | 1994-04-22 | Sony Corp | 改良dctの信号変換装置 |
US5508949A (en) * | 1993-12-29 | 1996-04-16 | Hewlett-Packard Company | Fast subband filtering in digital signal coding |
DE69534097T2 (de) | 1994-12-21 | 2006-02-09 | Koninklijke Philips Electronics N.V. | Booth-Multiplizierer für trigonometrische Funktionen |
JPH08190764A (ja) * | 1995-01-05 | 1996-07-23 | Sony Corp | ディジタル信号処理方法、ディジタル信号処理装置及び記録媒体 |
US5805484A (en) * | 1995-03-10 | 1998-09-08 | Sony Corporation | Orthogonal function generating circuit and orthogonal function generating method |
US5727119A (en) * | 1995-03-27 | 1998-03-10 | Dolby Laboratories Licensing Corporation | Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase |
KR100488537B1 (ko) * | 1996-11-20 | 2005-09-30 | 삼성전자주식회사 | 듀얼모드오디오디코더의재현방법및필터 |
US5991787A (en) * | 1997-12-31 | 1999-11-23 | Intel Corporation | Reducing peak spectral error in inverse Fast Fourier Transform using MMX™ technology |
WO1999039303A1 (en) * | 1998-02-02 | 1999-08-05 | The Trustees Of The University Of Pennsylvania | Method and system for computing 8x8 dct/idct and a vlsi implementation |
-
1997
- 1997-08-29 EP EP97942369A patent/EP1016231B1/de not_active Expired - Lifetime
- 1997-08-29 WO PCT/SG1997/000037 patent/WO1999012292A1/en active IP Right Grant
- 1997-08-29 DE DE69738204T patent/DE69738204D1/de not_active Expired - Lifetime
-
2009
- 2009-07-10 US US12/501,342 patent/US8301282B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1016231B1 (de) | 2007-10-10 |
US8301282B2 (en) | 2012-10-30 |
WO1999012292A1 (en) | 1999-03-11 |
EP1016231A1 (de) | 2000-07-05 |
US20090276227A1 (en) | 2009-11-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |