FR2911227A1 - Codage par transformee, utilisant des fenetres de ponderation et a faible retard - Google Patents
Codage par transformee, utilisant des fenetres de ponderation et a faible retard Download PDFInfo
- Publication number
- FR2911227A1 FR2911227A1 FR0700056A FR0700056A FR2911227A1 FR 2911227 A1 FR2911227 A1 FR 2911227A1 FR 0700056 A FR0700056 A FR 0700056A FR 0700056 A FR0700056 A FR 0700056A FR 2911227 A1 FR2911227 A1 FR 2911227A1
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- France
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- 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.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000005236 sound signal Effects 0.000 title claims abstract description 11
- 238000004590 computer program Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims description 54
- 230000015572 biosynthetic process Effects 0.000 claims description 37
- 238000003786 synthesis reaction Methods 0.000 claims description 37
- 238000004458 analytical method Methods 0.000 claims description 35
- 230000006870 function Effects 0.000 claims description 26
- 230000008859 change Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 7
- 230000009977 dual effect Effects 0.000 claims description 3
- 230000001131 transforming effect Effects 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 230000009466 transformation Effects 0.000 description 11
- 238000012545 processing Methods 0.000 description 10
- 238000013139 quantization Methods 0.000 description 8
- 238000011282 treatment Methods 0.000 description 8
- 238000004364 calculation method Methods 0.000 description 7
- 230000000630 rising effect Effects 0.000 description 7
- 230000002123 temporal effect Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000007792 addition Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 101150108611 dct-1 gene Proteins 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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
- 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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
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)
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0700056A FR2911227A1 (fr) | 2007-01-05 | 2007-01-05 | Codage par transformee, utilisant des fenetres de ponderation et a faible retard |
| FR0702768A FR2911228A1 (fr) | 2007-01-05 | 2007-04-17 | Codage par transformee, utilisant des fenetres de ponderation et a faible retard. |
| ES07871956T ES2360898T3 (es) | 2007-01-05 | 2007-12-18 | Codificación por transformada, utilizando ventanas de ponderación y con retardo pequeño. |
| US12/448,734 US8615390B2 (en) | 2007-01-05 | 2007-12-18 | Low-delay transform coding using weighting windows |
| AT07871956T ATE498886T1 (de) | 2007-01-05 | 2007-12-18 | Transformationsködierung mit geringer verzögerung unter verwendung von gewichtgsfenstern |
| PCT/FR2007/052541 WO2008081144A2 (fr) | 2007-01-05 | 2007-12-18 | Codage par transformee, utilisant des fenetres de ponderation et a faible retard |
| DE602007012587T DE602007012587D1 (de) | 2007-01-05 | 2007-12-18 | Transformationsködierung mit geringer verzögerung unter verwendung von gewichtgsfenstern |
| KR1020097016337A KR101437127B1 (ko) | 2007-01-05 | 2007-12-18 | 가중 윈도우들을 사용한 저-지연 변환 코딩 |
| JP2009544424A JP5247721B2 (ja) | 2007-01-05 | 2007-12-18 | 重み付けウィンドウを用いた低遅延変換符号化 |
| EP07871956A EP2104936B1 (fr) | 2007-01-05 | 2007-12-18 | Codage par transformee, utilisant des fenetres de ponderation et a faible retard |
| CN200780051256.3A CN101611440B (zh) | 2007-01-05 | 2007-12-18 | 一种使用加权窗的低延时变换编码的方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0700056A FR2911227A1 (fr) | 2007-01-05 | 2007-01-05 | Codage par transformee, utilisant des fenetres de ponderation et a faible retard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2911227A1 true FR2911227A1 (fr) | 2008-07-11 |
Family
ID=38230175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0700056A Pending FR2911227A1 (fr) | 2007-01-05 | 2007-01-05 | Codage par transformee, utilisant des fenetres de ponderation et a faible retard |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101611440B (zh) |
| ES (1) | ES2360898T3 (zh) |
| FR (1) | FR2911227A1 (zh) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012048472A1 (en) * | 2010-10-15 | 2012-04-19 | Huawei Technologies Co., Ltd. | Signal analyzer, signal analyzing method, signal synthesizer, signal synthesizing method, windower, transformer and inverse transformer |
| EP4243017A3 (en) * | 2011-02-14 | 2023-11-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method decoding an audio signal using an aligned look-ahead portion |
| CN110232929B (zh) | 2013-02-20 | 2023-06-13 | 弗劳恩霍夫应用研究促进协会 | 用于对音频信号进行译码的译码器和方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5361278A (en) * | 1989-10-06 | 1994-11-01 | Telefunken Fernseh Und Rundfunk Gmbh | Process for transmitting a signal |
| WO1998002971A1 (en) * | 1996-07-11 | 1998-01-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | A method of coding and decoding audio signals |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3902948A1 (de) * | 1989-02-01 | 1990-08-09 | Telefunken Fernseh & Rundfunk | Verfahren zur uebertragung eines signals |
| US5774846A (en) * | 1994-12-19 | 1998-06-30 | Matsushita Electric Industrial Co., Ltd. | Speech coding apparatus, linear prediction coefficient analyzing apparatus and noise reducing apparatus |
| US7054807B2 (en) * | 2002-11-08 | 2006-05-30 | Motorola, Inc. | Optimizing encoder for efficiently determining analysis-by-synthesis codebook-related parameters |
| US20040098255A1 (en) * | 2002-11-14 | 2004-05-20 | France Telecom | Generalized analysis-by-synthesis speech coding method, and coder implementing such method |
| KR100608062B1 (ko) * | 2004-08-04 | 2006-08-02 | 삼성전자주식회사 | 오디오 데이터의 고주파수 복원 방법 및 그 장치 |
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2007
- 2007-01-05 FR FR0700056A patent/FR2911227A1/fr active Pending
- 2007-12-18 CN CN200780051256.3A patent/CN101611440B/zh active Active
- 2007-12-18 ES ES07871956T patent/ES2360898T3/es active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5361278A (en) * | 1989-10-06 | 1994-11-01 | Telefunken Fernseh Und Rundfunk Gmbh | Process for transmitting a signal |
| WO1998002971A1 (en) * | 1996-07-11 | 1998-01-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | A method of coding and decoding audio signals |
Non-Patent Citations (2)
| Title |
|---|
| EDLER B: "CODIERUNG VON AUDIOSIGNALEN MIT UEBERLAPPENDER TRANSFORMATION UND ADAPTIVEN FENSTERFUNKTIONEN CODING OF AUDIO SIGNALS WITH OVERLAPPING BLOCK TRANSFORM AND ADAPTIVE WINDOW FUNCTIONS", FREQUENZ, SCHIELE UND SCHON, BERLIN, DE, vol. 43, no. 9, 1 September 1989 (1989-09-01), pages 252 - 256, XP000052987, ISSN: 0016-1136 * |
| OMAR NIAMUT ET AL: "RD OPTIMAL TIME SEGMENTATIONS FOR THE TIME-VARYING MDCT", PROCEEDINGS OF THE EUROPEAN SIGNAL PROCESSING CONFERENCE, XX, XX, 6 September 2004 (2004-09-06), pages 1649 - 1652, XP002391769 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2360898T3 (es) | 2011-06-10 |
| CN101611440B (zh) | 2013-02-13 |
| CN101611440A (zh) | 2009-12-23 |
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