JP2008519308A5 - - Google Patents
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- JP2008519308A5 JP2008519308A5 JP2007539679A JP2007539679A JP2008519308A5 JP 2008519308 A5 JP2008519308 A5 JP 2008519308A5 JP 2007539679 A JP2007539679 A JP 2007539679A JP 2007539679 A JP2007539679 A JP 2007539679A JP 2008519308 A5 JP2008519308 A5 JP 2008519308A5
- Authority
- JP
- Japan
- Prior art keywords
- encoding
- audio signal
- audio
- encoder
- template
- 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
- 230000005236 sound signal Effects 0.000 claims description 84
- 238000000034 method Methods 0.000 claims description 69
- 238000005457 optimization Methods 0.000 claims description 56
- 230000011218 segmentation Effects 0.000 claims description 25
- 230000003595 spectral effect Effects 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 18
- 206010021403 Illusion Diseases 0.000 claims description 14
- 238000001228 spectrum Methods 0.000 claims description 9
- 238000013178 mathematical model Methods 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 4
- 230000007774 longterm Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims 1
- 239000013598 vector Substances 0.000 description 64
- 238000009826 distribution Methods 0.000 description 15
- 230000003044 adaptive effect Effects 0.000 description 13
- 238000013459 approach Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 8
- 230000000873 masking effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000012549 training Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000003993 interaction Effects 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
- 238000012545 processing Methods 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- KEOITPILCOILGM-LLJOFIFVSA-N kalopanaxsaponin A Chemical compound O[C@@H]1[C@H](O)[C@@H](O)[C@H](C)O[C@H]1O[C@H]1[C@H](O[C@@H]2[C@@]([C@H]3[C@]([C@@H]4[C@@]([C@@]5(CC[C@]6(CCC(C)(C)C[C@H]6C5=CC4)C(O)=O)C)(C)CC3)(C)CC2)(C)CO)OC[C@H](O)[C@@H]1O KEOITPILCOILGM-LLJOFIFVSA-N 0.000 description 1
- BULVZWIRKLYCBC-UHFFFAOYSA-N phorate Chemical compound CCOP(=S)(OCC)SCSCC BULVZWIRKLYCBC-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04105545 | 2004-11-05 | ||
| PCT/IB2005/053570 WO2006048824A1 (en) | 2004-11-05 | 2005-11-02 | Efficient audio coding using signal properties |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008519308A JP2008519308A (ja) | 2008-06-05 |
| JP2008519308A5 true JP2008519308A5 (enExample) | 2008-07-17 |
Family
ID=35965990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007539679A Pending JP2008519308A (ja) | 2004-11-05 | 2005-11-02 | 信号特性を用いた効率的なオーディオ符号化 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20090063158A1 (enExample) |
| EP (1) | EP1815463A1 (enExample) |
| JP (1) | JP2008519308A (enExample) |
| KR (1) | KR20070085788A (enExample) |
| CN (1) | CN101053020A (enExample) |
| WO (1) | WO2006048824A1 (enExample) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7818168B1 (en) * | 2006-12-01 | 2010-10-19 | The United States Of America As Represented By The Director, National Security Agency | Method of measuring degree of enhancement to voice signal |
| KR101411900B1 (ko) * | 2007-05-08 | 2014-06-26 | 삼성전자주식회사 | 오디오 신호의 부호화 및 복호화 방법 및 장치 |
| CN101221766B (zh) * | 2008-01-23 | 2011-01-05 | 清华大学 | 音频编码器切换的方法 |
| GB0915766D0 (en) * | 2009-09-09 | 2009-10-07 | Apt Licensing Ltd | Apparatus and method for multidimensional adaptive audio coding |
| US9047875B2 (en) * | 2010-07-19 | 2015-06-02 | Futurewei Technologies, Inc. | Spectrum flatness control for bandwidth extension |
| MY189267A (en) * | 2013-01-29 | 2022-01-31 | Fraunhofer Ges Forschung | Apparatus and method for selecting one of a first encoding algorithm and a second encoding algorithm |
| CN120858406A (zh) * | 2023-03-21 | 2025-10-28 | 瑞典爱立信有限公司 | 颗粒合成数据库的编码 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3276651D1 (en) * | 1982-11-26 | 1987-07-30 | Ibm | Speech signal coding method and apparatus |
| WO1993005502A1 (en) * | 1991-09-05 | 1993-03-18 | Motorola, Inc. | Error protection for multimode speech coders |
| US5341456A (en) * | 1992-12-02 | 1994-08-23 | Qualcomm Incorporated | Method for determining speech encoding rate in a variable rate vocoder |
| US6134518A (en) * | 1997-03-04 | 2000-10-17 | International Business Machines Corporation | Digital audio signal coding using a CELP coder and a transform coder |
| US6240386B1 (en) * | 1998-08-24 | 2001-05-29 | Conexant Systems, Inc. | Speech codec employing noise classification for noise compensation |
| US6691084B2 (en) * | 1998-12-21 | 2004-02-10 | Qualcomm Incorporated | Multiple mode variable rate speech coding |
| US6937979B2 (en) * | 2000-09-15 | 2005-08-30 | Mindspeed Technologies, Inc. | Coding based on spectral content of a speech signal |
| US6785645B2 (en) * | 2001-11-29 | 2004-08-31 | Microsoft Corporation | Real-time speech and music classifier |
| FR2837330B1 (fr) * | 2002-03-14 | 2004-12-10 | Canon Kk | Procede et dispositif de selection d'une methode de transcodage parmi un ensemble de methodes de transcodage |
| AUPS270902A0 (en) * | 2002-05-31 | 2002-06-20 | Canon Kabushiki Kaisha | Robust detection and classification of objects in audio using limited training data |
-
2005
- 2005-11-02 KR KR1020077012691A patent/KR20070085788A/ko not_active Withdrawn
- 2005-11-02 WO PCT/IB2005/053570 patent/WO2006048824A1/en not_active Ceased
- 2005-11-02 US US11/718,242 patent/US20090063158A1/en not_active Abandoned
- 2005-11-02 CN CNA2005800379089A patent/CN101053020A/zh active Pending
- 2005-11-02 JP JP2007539679A patent/JP2008519308A/ja active Pending
- 2005-11-02 EP EP05797846A patent/EP1815463A1/en not_active Withdrawn
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