DE69705642T2 - Audio-kodierverfahren mit veränderlicher kodelänge unter verwendung einer mehrzahl von teilband-bitverteilungsmoden - Google Patents
Audio-kodierverfahren mit veränderlicher kodelänge unter verwendung einer mehrzahl von teilband-bitverteilungsmodenInfo
- Publication number
- DE69705642T2 DE69705642T2 DE69705642T DE69705642T DE69705642T2 DE 69705642 T2 DE69705642 T2 DE 69705642T2 DE 69705642 T DE69705642 T DE 69705642T DE 69705642 T DE69705642 T DE 69705642T DE 69705642 T2 DE69705642 T2 DE 69705642T2
- Authority
- DE
- Germany
- Prior art keywords
- region
- module
- transform coefficients
- categorization
- energy
- 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
- 238000000034 method Methods 0.000 title claims description 43
- 238000013139 quantization Methods 0.000 claims description 82
- 239000013598 vector Substances 0.000 claims description 56
- 230000005236 sound signal Effects 0.000 claims description 43
- 230000009466 transformation Effects 0.000 claims description 13
- 230000001131 transforming effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 16
- 230000003595 spectral effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 2
- VOOFUNKBLIGEBY-AQRCPPRCSA-N (2s)-2-[[(2s)-2-[[(2s)-2-[[(2s)-5-amino-2-[[(2s)-5-amino-2-[[(2s)-2-amino-4-methylpentanoyl]amino]-5-oxopentanoyl]amino]-5-oxopentanoyl]amino]-4-methylpentanoyl]amino]-4-methylpentanoyl]amino]-3-phenylpropanoic acid Chemical compound CC(C)C[C@H](N)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@H](C(O)=O)CC1=CC=CC=C1 VOOFUNKBLIGEBY-AQRCPPRCSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
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- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000003874 inverse correlation nuclear magnetic resonance spectroscopy Methods 0.000 description 1
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- 238000010606 normalization Methods 0.000 description 1
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- 238000005070 sampling Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/726,959 US5924064A (en) | 1996-10-07 | 1996-10-07 | Variable length coding using a plurality of region bit allocation patterns |
| PCT/US1997/017770 WO1998015945A1 (en) | 1996-10-07 | 1997-10-06 | Variable length audio coding using a plurality of subband bit allocation patterns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69705642D1 DE69705642D1 (de) | 2001-08-16 |
| DE69705642T2 true DE69705642T2 (de) | 2002-05-02 |
Family
ID=24920743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69705642T Expired - Lifetime DE69705642T2 (de) | 1996-10-07 | 1997-10-06 | Audio-kodierverfahren mit veränderlicher kodelänge unter verwendung einer mehrzahl von teilband-bitverteilungsmoden |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5924064A (enExample) |
| EP (1) | EP0968497B1 (enExample) |
| JP (1) | JP4237826B2 (enExample) |
| CA (1) | CA2267764A1 (enExample) |
| DE (1) | DE69705642T2 (enExample) |
| WO (1) | WO1998015945A1 (enExample) |
Families Citing this family (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6167375A (en) * | 1997-03-17 | 2000-12-26 | Kabushiki Kaisha Toshiba | Method for encoding and decoding a speech signal including background noise |
| KR100335609B1 (ko) | 1997-11-20 | 2002-10-04 | 삼성전자 주식회사 | 비트율조절이가능한오디오부호화/복호화방법및장치 |
| ATE384358T1 (de) * | 1998-05-27 | 2008-02-15 | Microsoft Corp | Verfahren und vorrichtung zur maskierung des quantisierungsrauschens von audiosignalen |
| AR023444A1 (es) * | 1999-04-16 | 2002-09-04 | Dolby Lab Licensing Corp | Metodo y aparato para decodificar una senal codificada y metodo y aparato para codificar una senal de entrada |
| DE60135487D1 (de) | 2000-12-22 | 2008-10-02 | Sony Corp | Codierer |
| AUPR433901A0 (en) * | 2001-04-10 | 2001-05-17 | Lake Technology Limited | High frequency signal construction method |
| US7240001B2 (en) * | 2001-12-14 | 2007-07-03 | Microsoft Corporation | Quality improvement techniques in an audio encoder |
| JP2005516495A (ja) * | 2002-01-22 | 2005-06-02 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 既圧縮マルチメディアのビットレートの低減 |
| US7099387B2 (en) * | 2002-03-22 | 2006-08-29 | Realnetorks, Inc. | Context-adaptive VLC video transform coefficients encoding/decoding methods and apparatuses |
| US7447631B2 (en) * | 2002-06-17 | 2008-11-04 | Dolby Laboratories Licensing Corporation | Audio coding system using spectral hole filling |
| US20030236674A1 (en) * | 2002-06-19 | 2003-12-25 | Henry Raymond C. | Methods and systems for compression of stored audio |
| CN100511425C (zh) * | 2003-11-14 | 2009-07-08 | 义隆电子股份有限公司 | 改善adpcm语音编码步长调节的方法及系统 |
| DE102004009955B3 (de) * | 2004-03-01 | 2005-08-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Ermitteln einer Quantisierer-Schrittweite |
| US7536302B2 (en) * | 2004-07-13 | 2009-05-19 | Industrial Technology Research Institute | Method, process and device for coding audio signals |
| DE102004036154B3 (de) * | 2004-07-26 | 2005-12-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zur robusten Klassifizierung von Audiosignalen sowie Verfahren zu Einrichtung und Betrieb einer Audiosignal-Datenbank sowie Computer-Programm |
| US8116500B2 (en) * | 2004-10-15 | 2012-02-14 | Lifesize Communications, Inc. | Microphone orientation and size in a speakerphone |
| US7826624B2 (en) * | 2004-10-15 | 2010-11-02 | Lifesize Communications, Inc. | Speakerphone self calibration and beam forming |
| US20060132595A1 (en) * | 2004-10-15 | 2006-06-22 | Kenoyer Michael L | Speakerphone supporting video and audio features |
| US7970151B2 (en) * | 2004-10-15 | 2011-06-28 | Lifesize Communications, Inc. | Hybrid beamforming |
| US7720232B2 (en) * | 2004-10-15 | 2010-05-18 | Lifesize Communications, Inc. | Speakerphone |
| US7760887B2 (en) * | 2004-10-15 | 2010-07-20 | Lifesize Communications, Inc. | Updating modeling information based on online data gathering |
| US7903137B2 (en) * | 2004-10-15 | 2011-03-08 | Lifesize Communications, Inc. | Videoconferencing echo cancellers |
| US7720236B2 (en) * | 2004-10-15 | 2010-05-18 | Lifesize Communications, Inc. | Updating modeling information based on offline calibration experiments |
| US7991167B2 (en) * | 2005-04-29 | 2011-08-02 | Lifesize Communications, Inc. | Forming beams with nulls directed at noise sources |
| US7593539B2 (en) | 2005-04-29 | 2009-09-22 | Lifesize Communications, Inc. | Microphone and speaker arrangement in speakerphone |
| US7970150B2 (en) * | 2005-04-29 | 2011-06-28 | Lifesize Communications, Inc. | Tracking talkers using virtual broadside scan and directed beams |
| WO2007096551A2 (fr) * | 2006-02-24 | 2007-08-30 | France Telecom | Procede de codage binaire d'indices de quantification d'une enveloppe d'un signal, procede de decodage d'une enveloppe d'un signal et modules de codage et decodage correspondants |
| US7966175B2 (en) * | 2006-10-18 | 2011-06-21 | Polycom, Inc. | Fast lattice vector quantization |
| US7953595B2 (en) * | 2006-10-18 | 2011-05-31 | Polycom, Inc. | Dual-transform coding of audio signals |
| US7885819B2 (en) | 2007-06-29 | 2011-02-08 | Microsoft Corporation | Bitstream syntax for multi-process audio decoding |
| AU2009267459B2 (en) | 2008-07-11 | 2014-01-23 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio encoder, audio decoder, methods for encoding and decoding an audio signal, audio stream and computer program |
| US8386266B2 (en) * | 2010-07-01 | 2013-02-26 | Polycom, Inc. | Full-band scalable audio codec |
| US8428959B2 (en) * | 2010-01-29 | 2013-04-23 | Polycom, Inc. | Audio packet loss concealment by transform interpolation |
| RU2464649C1 (ru) * | 2011-06-01 | 2012-10-20 | Корпорация "САМСУНГ ЭЛЕКТРОНИКС Ко., Лтд." | Способ обработки звукового сигнала |
| CN103946918B (zh) * | 2011-09-28 | 2017-03-08 | Lg电子株式会社 | 语音信号编码方法、语音信号解码方法及使用其的装置 |
| US9111524B2 (en) * | 2011-12-20 | 2015-08-18 | Dolby International Ab | Seamless playback of successive multimedia files |
| CN105103226B (zh) | 2013-01-29 | 2019-04-16 | 弗劳恩霍夫应用研究促进协会 | 低复杂度音调自适应音频信号量化 |
| US10523369B2 (en) | 2017-01-09 | 2019-12-31 | Qualcomm Incorporated | Mutual-information based recursive polar code construction |
| WO2018126496A1 (en) | 2017-01-09 | 2018-07-12 | Qualcomm Incorporated | Bit allocation for encoding and decoding |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5109417A (en) * | 1989-01-27 | 1992-04-28 | Dolby Laboratories Licensing Corporation | Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
| US5479562A (en) * | 1989-01-27 | 1995-12-26 | Dolby Laboratories Licensing Corporation | Method and apparatus for encoding and decoding audio information |
| US5230038A (en) * | 1989-01-27 | 1993-07-20 | Fielder Louis D | Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
| US5222189A (en) * | 1989-01-27 | 1993-06-22 | Dolby Laboratories Licensing Corporation | Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio |
| US5142656A (en) * | 1989-01-27 | 1992-08-25 | Dolby Laboratories Licensing Corporation | Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
| US5185800A (en) * | 1989-10-13 | 1993-02-09 | Centre National D'etudes Des Telecommunications | Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion |
| KR100228688B1 (ko) * | 1991-01-08 | 1999-11-01 | 쥬더 에드 에이. | 다차원 음장용 인코우더/디코우더 |
| US5317672A (en) * | 1991-03-05 | 1994-05-31 | Picturetel Corporation | Variable bit rate speech encoder |
| DE69232251T2 (de) * | 1991-08-02 | 2002-07-18 | Sony Corp., Tokio/Tokyo | Digitaler Kodierer mit dynamischer Quantisierungsbitverteilung |
| JP3134455B2 (ja) * | 1992-01-29 | 2001-02-13 | ソニー株式会社 | 高能率符号化装置及び方法 |
| JP3153933B2 (ja) * | 1992-06-16 | 2001-04-09 | ソニー株式会社 | データ符号化装置及び方法並びにデータ復号化装置及び方法 |
| KR100188912B1 (ko) * | 1992-09-21 | 1999-06-01 | 윤종용 | 서브밴드코딩의 비트재할당 방법 |
| JP3123286B2 (ja) * | 1993-02-18 | 2001-01-09 | ソニー株式会社 | ディジタル信号処理装置又は方法、及び記録媒体 |
| WO1995002240A1 (en) * | 1993-07-07 | 1995-01-19 | Picturetel Corporation | A fixed bit rate speech encoder/decoder |
| US5664057A (en) * | 1993-07-07 | 1997-09-02 | Picturetel Corporation | Fixed bit rate speech encoder/decoder |
| 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 |
| EP0720316B1 (en) * | 1994-12-30 | 1999-12-08 | Daewoo Electronics Co., Ltd | Adaptive digital audio encoding apparatus and a bit allocation method thereof |
| JP2982637B2 (ja) * | 1995-01-17 | 1999-11-29 | 日本電気株式会社 | スペクトルパラメータを用いた音声信号伝送システムおよびそれに用いられる音声パラメータ符号化装置および復号化装置 |
-
1996
- 1996-10-07 US US08/726,959 patent/US5924064A/en not_active Expired - Lifetime
-
1997
- 1997-10-06 DE DE69705642T patent/DE69705642T2/de not_active Expired - Lifetime
- 1997-10-06 CA CA002267764A patent/CA2267764A1/en not_active Abandoned
- 1997-10-06 JP JP51760498A patent/JP4237826B2/ja not_active Expired - Fee Related
- 1997-10-06 EP EP97911610A patent/EP0968497B1/en not_active Expired - Lifetime
- 1997-10-06 WO PCT/US1997/017770 patent/WO1998015945A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP0968497A4 (en) | 2000-02-23 |
| EP0968497A1 (en) | 2000-01-05 |
| EP0968497B1 (en) | 2001-07-11 |
| DE69705642D1 (de) | 2001-08-16 |
| JP2001502073A (ja) | 2001-02-13 |
| WO1998015945A1 (en) | 1998-04-16 |
| CA2267764A1 (en) | 1998-04-16 |
| JP4237826B2 (ja) | 2009-03-11 |
| US5924064A (en) | 1999-07-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |