CN101743689B - 用于平滑信号的随时间变化的水平的方法和装置 - Google Patents
用于平滑信号的随时间变化的水平的方法和装置 Download PDFInfo
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- CN101743689B CN101743689B CN2008800245069A CN200880024506A CN101743689B CN 101743689 B CN101743689 B CN 101743689B CN 2008800245069 A CN2008800245069 A CN 2008800245069A CN 200880024506 A CN200880024506 A CN 200880024506A CN 101743689 B CN101743689 B CN 101743689B
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- 230000005236 sound signal Effects 0.000 title claims abstract description 33
- 238000009499 grossing Methods 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 26
- 230000036962 time dependent Effects 0.000 claims description 52
- 230000000630 rising effect Effects 0.000 claims description 17
- 230000004044 response Effects 0.000 claims description 14
- 238000004364 calculation method Methods 0.000 claims description 13
- 230000003111 delayed effect Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 10
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- 238000012545 processing Methods 0.000 description 8
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- 230000006399 behavior Effects 0.000 description 2
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Images
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/23—Clustering techniques
- G06F18/232—Non-hierarchical techniques
- G06F18/2321—Non-hierarchical techniques using statistics or function optimisation, e.g. modelling of probability density functions
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Control Of Amplification And Gain Control (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Electric Clocks (AREA)
- Electrophonic Musical Instruments (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Ropes Or Cables (AREA)
- Television Receiver Circuits (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (23)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US95944207P | 2007-07-13 | 2007-07-13 | |
US60/959,442 | 2007-07-13 | ||
PCT/US2008/008591 WO2009011826A2 (en) | 2007-07-13 | 2008-07-11 | Time-varying audio-signal level using a time-varying estimated probability density of the level |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101743689A CN101743689A (zh) | 2010-06-16 |
CN101743689B true CN101743689B (zh) | 2013-04-10 |
Family
ID=40090149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008800245069A Active CN101743689B (zh) | 2007-07-13 | 2008-07-11 | 用于平滑信号的随时间变化的水平的方法和装置 |
Country Status (11)
Country | Link |
---|---|
US (1) | US9698743B2 (zh) |
EP (1) | EP2168237B1 (zh) |
JP (1) | JP5044019B2 (zh) |
CN (1) | CN101743689B (zh) |
AT (1) | ATE486407T1 (zh) |
BR (1) | BRPI0814241B1 (zh) |
DE (1) | DE602008003236D1 (zh) |
ES (1) | ES2354962T3 (zh) |
RU (1) | RU2433525C1 (zh) |
TW (1) | TWI467568B (zh) |
WO (1) | WO2009011826A2 (zh) |
Families Citing this family (12)
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CN102017402B (zh) | 2007-12-21 | 2015-01-07 | Dts有限责任公司 | 用于调节音频信号的感知响度的系统 |
JP5120288B2 (ja) * | 2009-02-16 | 2013-01-16 | ソニー株式会社 | 音量補正装置、音量補正方法、音量補正プログラムおよび電子機器 |
EP2238899B1 (en) * | 2009-04-06 | 2016-10-05 | GN Resound A/S | Efficient evaluation of hearing ability |
US8938313B2 (en) | 2009-04-30 | 2015-01-20 | Dolby Laboratories Licensing Corporation | Low complexity auditory event boundary detection |
WO2010127024A1 (en) | 2009-04-30 | 2010-11-04 | Dolby Laboratories Licensing Corporation | Controlling the loudness of an audio signal in response to spectral localization |
TWI503816B (zh) | 2009-05-06 | 2015-10-11 | Dolby Lab Licensing Corp | 調整音訊信號響度並使其具有感知頻譜平衡保持效果之技術 |
US8538042B2 (en) | 2009-08-11 | 2013-09-17 | Dts Llc | System for increasing perceived loudness of speakers |
US9312829B2 (en) | 2012-04-12 | 2016-04-12 | Dts Llc | System for adjusting loudness of audio signals in real time |
RU2665873C1 (ru) * | 2013-01-21 | 2018-09-04 | Долби Лэборетериз Лайсенсинг Корпорейшн | Оптимизация громкости и динамического диапазона через различные устройства воспроизведения |
CN105225673B (zh) * | 2014-06-09 | 2020-12-04 | 杜比实验室特许公司 | 用于噪声水平估计的方法、系统和介质 |
US9953661B2 (en) * | 2014-09-26 | 2018-04-24 | Cirrus Logic Inc. | Neural network voice activity detection employing running range normalization |
US11170313B2 (en) * | 2014-10-10 | 2021-11-09 | Analog Devices International Unlimited Company | Pipelining and parallelism for implementing a mixture model |
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WO2002017538A2 (en) * | 2000-08-18 | 2002-02-28 | The Regents Of The University Of California | Fixed, variable and adaptive bit rate data source encoding (compression) method |
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-
2008
- 2008-07-11 US US12/668,789 patent/US9698743B2/en active Active
- 2008-07-11 CN CN2008800245069A patent/CN101743689B/zh active Active
- 2008-07-11 ES ES08780173T patent/ES2354962T3/es active Active
- 2008-07-11 EP EP08780173A patent/EP2168237B1/en active Active
- 2008-07-11 JP JP2010516999A patent/JP5044019B2/ja active Active
- 2008-07-11 WO PCT/US2008/008591 patent/WO2009011826A2/en active Application Filing
- 2008-07-11 TW TW97126352A patent/TWI467568B/zh active
- 2008-07-11 BR BRPI0814241-6A patent/BRPI0814241B1/pt active IP Right Grant
- 2008-07-11 AT AT08780173T patent/ATE486407T1/de not_active IP Right Cessation
- 2008-07-11 DE DE602008003236T patent/DE602008003236D1/de active Active
- 2008-07-11 RU RU2010105057/08A patent/RU2433525C1/ru active
Patent Citations (4)
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US6768979B1 (en) * | 1998-10-22 | 2004-07-27 | Sony Corporation | Apparatus and method for noise attenuation in a speech recognition system |
CN1321297A (zh) * | 1999-08-23 | 2001-11-07 | 松下电器产业株式会社 | 音频编码装置以及音频编码方法 |
CN1581724A (zh) * | 2003-08-05 | 2005-02-16 | 华邦电子股份有限公司 | 自动增益控制器及其控制方法 |
US20060274620A1 (en) * | 2005-06-03 | 2006-12-07 | Zoran Corporation | Processing an information carrying signal |
Also Published As
Publication number | Publication date |
---|---|
ATE486407T1 (de) | 2010-11-15 |
JP5044019B2 (ja) | 2012-10-10 |
US9698743B2 (en) | 2017-07-04 |
TW200912898A (en) | 2009-03-16 |
EP2168237A2 (en) | 2010-03-31 |
US20100174540A1 (en) | 2010-07-08 |
DE602008003236D1 (de) | 2010-12-09 |
EP2168237B1 (en) | 2010-10-27 |
WO2009011826A2 (en) | 2009-01-22 |
ES2354962T3 (es) | 2011-03-21 |
CN101743689A (zh) | 2010-06-16 |
JP2010540977A (ja) | 2010-12-24 |
TWI467568B (zh) | 2015-01-01 |
RU2010105057A (ru) | 2011-08-20 |
WO2009011826A3 (en) | 2009-04-30 |
BRPI0814241A2 (pt) | 2015-01-06 |
RU2433525C1 (ru) | 2011-11-10 |
BRPI0814241B1 (pt) | 2020-12-01 |
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Application publication date: 20100616 Assignee: Lenovo (Beijing) Co.,Ltd. Assignor: DOLBY LABORATORIES LICENSING Corp. Contract record no.: 2012990000553 Denomination of invention: Time-varying audio-signal level using a time-varying estimated probability density of the level License type: Common License Record date: 20120731 |
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Application publication date: 20100616 Assignee: Lenovo (Beijing) Co.,Ltd. Assignor: DOLBY LABORATORIES LICENSING Corp. Contract record no.: 2012990000553 Denomination of invention: Time-varying audio-signal level using a time-varying estimated probability density of the level License type: Common License Record date: 20120731 |
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