DK1005695T3 - Fremgangsmåde og indretning til registrering af et anslag i et tidsdiskret audiosignal - Google Patents
Fremgangsmåde og indretning til registrering af et anslag i et tidsdiskret audiosignalInfo
- Publication number
- DK1005695T3 DK1005695T3 DK98937484T DK98937484T DK1005695T3 DK 1005695 T3 DK1005695 T3 DK 1005695T3 DK 98937484 T DK98937484 T DK 98937484T DK 98937484 T DK98937484 T DK 98937484T DK 1005695 T3 DK1005695 T3 DK 1005695T3
- Authority
- DK
- Denmark
- Prior art keywords
- audio signal
- discrete
- time audio
- time
- energy
- Prior art date
Links
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
- H04B1/665—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 psychoacoustic properties of the ear, e.g. masking effect
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Electrophonic Musical Instruments (AREA)
- Semiconductor Integrated Circuits (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19736669A DE19736669C1 (de) | 1997-08-22 | 1997-08-22 | Verfahren und Vorrichtung zum Erfassen eines Anschlags in einem zeitdiskreten Audiosignal sowie Vorrichtung und Verfahren zum Codieren eines Audiosignals |
| PCT/EP1998/003603 WO1999010886A2 (de) | 1997-08-22 | 1998-06-15 | Verfahren und vorrichtung zum erfassen eines anschlags in einem zeitdiskreten audiosignal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK1005695T3 true DK1005695T3 (da) | 2001-09-24 |
Family
ID=7839909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK98937484T DK1005695T3 (da) | 1997-08-22 | 1998-06-15 | Fremgangsmåde og indretning til registrering af et anslag i et tidsdiskret audiosignal |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US6453282B1 (da) |
| EP (1) | EP1005695B1 (da) |
| AT (1) | ATE203120T1 (da) |
| DE (2) | DE19736669C1 (da) |
| DK (1) | DK1005695T3 (da) |
| WO (1) | WO1999010886A2 (da) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6766300B1 (en) * | 1996-11-07 | 2004-07-20 | Creative Technology Ltd. | Method and apparatus for transient detection and non-distortion time scaling |
| US6778953B1 (en) * | 2000-06-02 | 2004-08-17 | Agere Systems Inc. | Method and apparatus for representing masked thresholds in a perceptual audio coder |
| US7447639B2 (en) * | 2001-01-24 | 2008-11-04 | Nokia Corporation | System and method for error concealment in digital audio transmission |
| US7069208B2 (en) * | 2001-01-24 | 2006-06-27 | Nokia, Corp. | System and method for concealment of data loss in digital audio transmission |
| JP4290917B2 (ja) * | 2002-02-08 | 2009-07-08 | 株式会社エヌ・ティ・ティ・ドコモ | 復号装置、符号化装置、復号方法、及び、符号化方法 |
| US20030215013A1 (en) * | 2002-04-10 | 2003-11-20 | Budnikov Dmitry N. | Audio encoder with adaptive short window grouping |
| WO2004008806A1 (en) * | 2002-07-16 | 2004-01-22 | Koninklijke Philips Electronics N.V. | Audio coding |
| KR100477699B1 (ko) * | 2003-01-15 | 2005-03-18 | 삼성전자주식회사 | 양자화 잡음 분포 조절 방법 및 장치 |
| TW594674B (en) * | 2003-03-14 | 2004-06-21 | Mediatek Inc | Encoder and a encoding method capable of detecting audio signal transient |
| DE102004009949B4 (de) * | 2004-03-01 | 2006-03-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Ermitteln eines Schätzwertes |
| JP4318119B2 (ja) * | 2004-06-18 | 2009-08-19 | 国立大学法人京都大学 | 音響信号処理方法、音響信号処理装置、音響信号処理システム及びコンピュータプログラム |
| KR100668319B1 (ko) * | 2004-12-07 | 2007-01-12 | 삼성전자주식회사 | 오디오 신호의 변환방법 및 장치와 오디오 신호에적응적인 부호화방법 및 장치, 오디오 신호의 역변환 방법및 장치와 오디오 신호에 적응적인 복호화 방법 및 장치 |
| US7627481B1 (en) * | 2005-04-19 | 2009-12-01 | Apple Inc. | Adapting masking thresholds for encoding a low frequency transient signal in audio data |
| ES2327566T3 (es) * | 2005-04-28 | 2009-10-30 | Siemens Aktiengesellschaft | Procedimiento y dispositivo para la supresion de ruidos. |
| DE102005032079A1 (de) * | 2005-07-08 | 2007-01-11 | Siemens Ag | Verfahren und Vorrichtung zur Geräuschunterdrückung |
| KR20080053739A (ko) * | 2006-12-11 | 2008-06-16 | 삼성전자주식회사 | 적응적으로 윈도우 크기를 적용하는 부호화 장치 및 방법 |
| FR2911228A1 (fr) * | 2007-01-05 | 2008-07-11 | France Telecom | Codage par transformee, utilisant des fenetres de ponderation et a faible retard. |
| CN101308655B (zh) | 2007-05-16 | 2011-07-06 | 展讯通信(上海)有限公司 | 一种音频编解码方法与装置 |
| US20090144054A1 (en) * | 2007-11-30 | 2009-06-04 | Kabushiki Kaisha Toshiba | Embedded system to perform frame switching |
| US8630848B2 (en) | 2008-05-30 | 2014-01-14 | Digital Rise Technology Co., Ltd. | Audio signal transient detection |
| BRPI0904958B1 (pt) * | 2008-07-11 | 2020-03-03 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Aparelho e método para calcular dados de extensão de largura de banda usando um quadro controlado por inclinação espectral |
| US8380498B2 (en) * | 2008-09-06 | 2013-02-19 | GH Innovation, Inc. | Temporal envelope coding of energy attack signal by using attack point location |
| RU2481650C2 (ru) * | 2008-09-17 | 2013-05-10 | Франс Телеком | Ослабление опережающих эхо-сигналов в цифровом звуковом сигнале |
| AU2014208306B9 (en) * | 2009-03-26 | 2016-12-08 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Device and method for manipulating an audio signal |
| PL2234103T3 (pl) * | 2009-03-26 | 2012-02-29 | Fraunhofer Ges Forschung | Urządzenie i sposób manipulacji sygnałem audio |
| TWI484473B (zh) | 2009-10-30 | 2015-05-11 | Dolby Int Ab | 用於從編碼位元串流擷取音訊訊號之節奏資訊、及估算音訊訊號之知覺顯著節奏的方法及系統 |
| CN102214464B (zh) * | 2010-04-02 | 2015-02-18 | 飞思卡尔半导体公司 | 音频信号的瞬态检测方法以及基于该方法的时长调整方法 |
| US8489391B2 (en) * | 2010-08-05 | 2013-07-16 | Stmicroelectronics Asia Pacific Pte., Ltd. | Scalable hybrid auto coder for transient detection in advanced audio coding with spectral band replication |
| EP2724340B1 (en) * | 2011-07-07 | 2019-05-15 | Nuance Communications, Inc. | Single channel suppression of impulsive interferences in noisy speech signals |
| FR3000328A1 (fr) * | 2012-12-21 | 2014-06-27 | France Telecom | Attenuation efficace de pre-echos dans un signal audionumerique |
| WO2014128197A1 (en) * | 2013-02-20 | 2014-08-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for encoding or decoding an audio signal using a transient-location dependent overlap |
| CN104143341B (zh) * | 2013-05-23 | 2015-10-21 | 腾讯科技(深圳)有限公司 | 爆音检测方法和装置 |
| CN104021791B (zh) * | 2014-06-24 | 2017-02-22 | 贵州大学 | 数字音频波形突变的检测方法 |
| EP2980798A1 (en) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Harmonicity-dependent controlling of a harmonic filter tool |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3872503A (en) * | 1974-01-23 | 1975-03-18 | Westinghouse Electric Corp | Elimination of transients in processing segments of audio information |
| 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 |
| JP2913731B2 (ja) * | 1990-03-07 | 1999-06-28 | ソニー株式会社 | ディジタルデータの高能率符号化方法 |
| CN1062963C (zh) * | 1990-04-12 | 2001-03-07 | 多尔拜实验特许公司 | 用于产生高质量声音信号的解码器和编码器 |
| ZA921988B (en) * | 1991-03-29 | 1993-02-24 | Sony Corp | High efficiency digital data encoding and decoding apparatus |
| US5451954A (en) * | 1993-08-04 | 1995-09-19 | Dolby Laboratories Licensing Corporation | Quantization noise suppression for encoder/decoder system |
| FR2741743B1 (fr) * | 1995-11-23 | 1998-01-02 | Thomson Csf | Procede et dispositif pour l'amelioration de l'intelligibilite de la parole dans les vocodeurs a bas debit |
| US5886276A (en) * | 1997-01-16 | 1999-03-23 | The Board Of Trustees Of The Leland Stanford Junior University | System and method for multiresolution scalable audio signal encoding |
| US6226608B1 (en) * | 1999-01-28 | 2001-05-01 | Dolby Laboratories Licensing Corporation | Data framing for adaptive-block-length coding system |
-
1997
- 1997-08-22 DE DE19736669A patent/DE19736669C1/de not_active Expired - Lifetime
-
1998
- 1998-06-15 DE DE59801016T patent/DE59801016D1/de not_active Expired - Lifetime
- 1998-06-15 EP EP98937484A patent/EP1005695B1/de not_active Expired - Lifetime
- 1998-06-15 WO PCT/EP1998/003603 patent/WO1999010886A2/de not_active Ceased
- 1998-06-15 DK DK98937484T patent/DK1005695T3/da active
- 1998-06-15 AT AT98937484T patent/ATE203120T1/de active
- 1998-06-15 US US09/424,596 patent/US6453282B1/en not_active Expired - Lifetime
-
2002
- 2002-06-25 US US10/183,139 patent/US6826525B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1005695B1 (de) | 2001-07-11 |
| WO1999010886A2 (de) | 1999-03-04 |
| ATE203120T1 (de) | 2001-07-15 |
| WO1999010886A3 (de) | 1999-06-10 |
| DE19736669C1 (de) | 1998-10-22 |
| US20020173948A1 (en) | 2002-11-21 |
| EP1005695A2 (de) | 2000-06-07 |
| US6826525B2 (en) | 2004-11-30 |
| DE59801016D1 (de) | 2001-08-16 |
| US6453282B1 (en) | 2002-09-17 |
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