FR2888704A1 - - Google Patents
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- Publication number
- FR2888704A1 FR2888704A1 FR0507471A FR0507471A FR2888704A1 FR 2888704 A1 FR2888704 A1 FR 2888704A1 FR 0507471 A FR0507471 A FR 0507471A FR 0507471 A FR0507471 A FR 0507471A FR 2888704 A1 FR2888704 A1 FR 2888704A1
- Authority
- FR
- France
- Prior art keywords
- echo
- signal
- current frame
- predictive
- decoded
- 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.)
- Pending
Links
- 238000002592 echocardiography Methods 0.000 claims abstract description 64
- 238000000034 method Methods 0.000 claims abstract description 64
- 230000005236 sound signal Effects 0.000 claims abstract description 46
- 230000002123 temporal effect Effects 0.000 claims abstract description 15
- 230000002238 attenuated effect Effects 0.000 claims abstract description 10
- 230000003595 spectral effect Effects 0.000 claims description 60
- 238000004364 calculation method Methods 0.000 claims description 43
- 230000011664 signaling Effects 0.000 claims description 22
- 230000009466 transformation Effects 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 17
- 238000011084 recovery Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 6
- 230000017105 transposition Effects 0.000 claims description 5
- 230000003111 delayed effect Effects 0.000 claims description 4
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 230000002441 reversible effect Effects 0.000 claims description 2
- 108010076504 Protein Sorting Signals Proteins 0.000 claims 1
- 230000004913 activation Effects 0.000 claims 1
- 230000001131 transforming effect Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 39
- 230000004044 response Effects 0.000 description 30
- 230000007704 transition Effects 0.000 description 30
- 230000008569 process Effects 0.000 description 20
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- 238000013139 quantization Methods 0.000 description 9
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- 230000015556 catabolic process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
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- 238000006731 degradation reaction Methods 0.000 description 2
- 238000012850 discrimination method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 230000005764 inhibitory process Effects 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 238000011002 quantification Methods 0.000 description 2
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- 238000001228 spectrum Methods 0.000 description 2
- 241001362574 Decodes Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- MOXZPMYMMBOUJY-UHFFFAOYSA-N n-[2-(2-aminoethylsulfanyl)ethyl]-5-(dimethylamino)naphthalene-1-sulfonamide Chemical compound C1=CC=C2C(N(C)C)=CC=CC2=C1S(=O)(=O)NCCSCCN MOXZPMYMMBOUJY-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
- G10L19/025—Detection of transients or attacks for time/frequency resolution switching
-
- 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
- G10L19/04—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 predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
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)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0507471A FR2888704A1 (de) | 2005-07-12 | 2005-07-12 | |
| PCT/FR2006/001659 WO2007006958A2 (fr) | 2005-07-12 | 2006-07-07 | Procédé et dispositif d'atténuation des échos d'un signal audionumérioue issu d'un codeur multicouches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0507471A FR2888704A1 (de) | 2005-07-12 | 2005-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2888704A1 true FR2888704A1 (de) | 2007-01-19 |
Family
ID=36127469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0507471A Pending FR2888704A1 (de) | 2005-07-12 | 2005-07-12 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2888704A1 (de) |
| WO (1) | WO2007006958A2 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014096733A1 (fr) * | 2012-12-21 | 2014-06-26 | Orange | Atténuation efficace de pré-échos dans un signal audionumérique |
| RU2734781C1 (ru) * | 2017-03-31 | 2020-10-23 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Устройство для постобработки звукового сигнала с использованием выявления места всплеска |
| US11562756B2 (en) | 2017-03-31 | 2023-01-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for post-processing an audio signal using prediction based shaping |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2897733A1 (fr) * | 2006-02-20 | 2007-08-24 | France Telecom | Procede de discrimination et d'attenuation fiabilisees des echos d'un signal numerique dans un decodeur et dispositif correspondant |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1335353A2 (de) * | 2002-02-08 | 2003-08-13 | NTT DoCoMo, Inc. | Dekodierungsgerät, Kodierungsgerät, Dekodierungsverfahren und Kodierungsverfahren |
-
2005
- 2005-07-12 FR FR0507471A patent/FR2888704A1/fr active Pending
-
2006
- 2006-07-07 WO PCT/FR2006/001659 patent/WO2007006958A2/fr active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1335353A2 (de) * | 2002-02-08 | 2003-08-13 | NTT DoCoMo, Inc. | Dekodierungsgerät, Kodierungsgerät, Dekodierungsverfahren und Kodierungsverfahren |
Non-Patent Citations (1)
| Title |
|---|
| MAHIEUX Y ET AL: "HIGH-QUALITY AUDIO TRANSFORM CODING AT 64 KBPS", IEEE TRANSACTIONS ON COMMUNICATIONS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 42, no. 11, 1 November 1994 (1994-11-01), pages 3010 - 3019, XP000475155, ISSN: 0090-6778 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014096733A1 (fr) * | 2012-12-21 | 2014-06-26 | Orange | Atténuation efficace de pré-échos dans un signal audionumérique |
| FR3000328A1 (fr) * | 2012-12-21 | 2014-06-27 | France Telecom | Attenuation efficace de pre-echos dans un signal audionumerique |
| CN104981981A (zh) * | 2012-12-21 | 2015-10-14 | 奥林奇公司 | 数字音频信号中的前回声的有效衰减 |
| RU2622863C2 (ru) * | 2012-12-21 | 2017-06-20 | Оранж | Эффективное ослабление опережающего эха в цифровом звуковом сигнале |
| CN104981981B (zh) * | 2012-12-21 | 2018-03-27 | 奥林奇公司 | 数字音频信号中的前回声的有效衰减 |
| US10170126B2 (en) | 2012-12-21 | 2019-01-01 | Orange | Effective attenuation of pre-echoes in a digital audio signal |
| RU2734781C1 (ru) * | 2017-03-31 | 2020-10-23 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Устройство для постобработки звукового сигнала с использованием выявления места всплеска |
| US11373666B2 (en) | 2017-03-31 | 2022-06-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus for post-processing an audio signal using a transient location detection |
| US11562756B2 (en) | 2017-03-31 | 2023-01-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for post-processing an audio signal using prediction based shaping |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007006958A3 (fr) | 2007-03-22 |
| WO2007006958A2 (fr) | 2007-01-18 |
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