JP6105929B2 - 音声処理装置及びその制御方法 - Google Patents

音声処理装置及びその制御方法 Download PDF

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Publication number
JP6105929B2
JP6105929B2 JP2012286160A JP2012286160A JP6105929B2 JP 6105929 B2 JP6105929 B2 JP 6105929B2 JP 2012286160 A JP2012286160 A JP 2012286160A JP 2012286160 A JP2012286160 A JP 2012286160A JP 6105929 B2 JP6105929 B2 JP 6105929B2
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Japan
Prior art keywords
gain
level
amplitude level
amplitude
control means
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English (en)
Japanese (ja)
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JP2014126854A (ja
JP2014126854A5 (enExample
Inventor
池田　信吾
信吾 池田
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Canon Inc
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Canon Inc
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Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2012286160A priority Critical patent/JP6105929B2/ja
Priority to US14/139,058 priority patent/US9319015B2/en
Priority to CN201310741393.7A priority patent/CN103905008B/zh
Publication of JP2014126854A publication Critical patent/JP2014126854A/ja
Publication of JP2014126854A5 publication Critical patent/JP2014126854A5/ja
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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
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
JP2012286160A 2012-12-27 2012-12-27 音声処理装置及びその制御方法 Expired - Fee Related JP6105929B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2012286160A JP6105929B2 (ja) 2012-12-27 2012-12-27 音声処理装置及びその制御方法
US14/139,058 US9319015B2 (en) 2012-12-27 2013-12-23 Audio processing apparatus and method
CN201310741393.7A CN103905008B (zh) 2012-12-27 2013-12-27 音频处理设备和音频处理方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012286160A JP6105929B2 (ja) 2012-12-27 2012-12-27 音声処理装置及びその制御方法

Publications (3)

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JP2014126854A JP2014126854A (ja) 2014-07-07
JP2014126854A5 JP2014126854A5 (enExample) 2016-02-18
JP6105929B2 true JP6105929B2 (ja) 2017-03-29

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JP2012286160A Expired - Fee Related JP6105929B2 (ja) 2012-12-27 2012-12-27 音声処理装置及びその制御方法

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US (1) US9319015B2 (enExample)
JP (1) JP6105929B2 (enExample)
CN (1) CN103905008B (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015130547A (ja) * 2014-01-06 2015-07-16 パナソニックＩｐマネジメント株式会社 記録装置
WO2016179647A1 (en) * 2015-05-08 2016-11-17 Barratt Lachlan Normalised attack in digital signal processing
EP3133736A1 (en) * 2015-08-17 2017-02-22 Nxp B.V. Gain control apparatus
WO2017047000A1 (ja) 2015-09-14 2017-03-23 パナソニックＩｐマネジメント株式会社 音声信号処理装置及びそれを用いた撮像装置
CN106504765B (zh) * 2016-10-20 2019-08-13 广州视源电子科技股份有限公司 一种音频信号的自动增益控制方法和装置
JP2019062514A (ja) * 2016-12-26 2019-04-18 キヤノン株式会社 音声処理装置及びその制御方法
JP6878137B2 (ja) 2017-05-19 2021-05-26 キヤノン株式会社 音声処理装置、音声処理方法およびプログラム
JP6570577B2 (ja) * 2017-05-19 2019-09-04 キヤノン株式会社 音声処理装置、音声処理方法、およびプログラム
JP6887315B2 (ja) * 2017-06-05 2021-06-16 キヤノン株式会社 音声処理装置およびその制御方法、プログラム並びに記憶媒体
CN110799936B (zh) * 2017-08-18 2024-05-03 Oppo广东移动通信有限公司 音量调节方法、装置、终端设备及存储介质
CN114915275A (zh) * 2021-02-08 2022-08-16 祖玛视频通讯公司 两级数字自动增益控制
CN113872529B (zh) * 2021-10-09 2025-04-01 深圳市创成微电子有限公司 一种音频设备及其放大器供电电压的控制方法

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KR100286006B1 (ko) * 1993-03-31 2001-04-16 윤종용 자동이득 조절장치
JPH07193446A (ja) * 1993-12-24 1995-07-28 Nec Corp 予測ゲイン自動切替回路
JPH08274558A (ja) * 1995-03-28 1996-10-18 Kokusai Electric Co Ltd 移動通信機用ａｇｃ回路
JPH09258782A (ja) * 1996-03-08 1997-10-03 Sony United Kingdom Ltd デジタル音声処理装置
US6535846B1 (en) * 1997-03-19 2003-03-18 K.S. Waves Ltd. Dynamic range compressor-limiter and low-level expander with look-ahead for maximizing and stabilizing voice level in telecommunication applications
US7058188B1 (en) * 1999-10-19 2006-06-06 Texas Instruments Incorporated Configurable digital loudness compensation system and method
JP2001298340A (ja) * 2000-04-17 2001-10-26 Sanyo Electric Co Ltd 自動レベル調整回路
US7248702B2 (en) * 2003-01-06 2007-07-24 Thomas Nelson Packard Sound enhancement system
US7353169B1 (en) * 2003-06-24 2008-04-01 Creative Technology Ltd. Transient detection and modification in audio signals
JP4578169B2 (ja) * 2004-07-23 2010-11-10 三洋電機株式会社 自動レベル調整回路
CN100581052C (zh) * 2004-08-13 2010-01-13 深圳赛意法微电子有限公司 具有自适应的爬升和衰减时间的自动增益控制系统
US8290181B2 (en) * 2005-03-19 2012-10-16 Microsoft Corporation Automatic audio gain control for concurrent capture applications
ES2399295T3 (es) * 2006-08-09 2013-03-27 Dolby Laboratories Licensing Corporation Limitación de picos de audio en etapas lentas y rápidas
JP4123486B2 (ja) * 2006-10-02 2008-07-23 日本ビクター株式会社 デジタル音声処理方法及びデジタル音声処理装置、並びにコンピュータプログラム
JP2008129107A (ja) 2006-11-17 2008-06-05 Sanyo Electric Co Ltd オートゲインコントロール装置、音声記録装置、映像・音声記録装置および通話装置
ATE415010T1 (de) * 2006-11-17 2008-12-15 Akg Acoustics Gmbh Audiokompressor
GB2455742B (en) * 2007-12-19 2011-11-02 Wolfson Microelectronics Plc Dynamic range controller
CN102273223B (zh) * 2008-11-14 2014-05-07 塔特公司 动态音量控制和多空间处理保护
JP5394905B2 (ja) * 2009-01-14 2014-01-22 ローム株式会社 自動レベル制御回路およびそれを用いたオーディオ用デジタル信号プロセッサならびに可変利得増幅器の利得制御方法
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
JP5556673B2 (ja) * 2011-01-11 2014-07-23 株式会社Ｊｖｃケンウッド 音声信号補正装置、音声信号補正方法及びプログラム
DK2512157T3 (en) * 2011-04-13 2014-02-17 Oticon As Hearing aid with automatic speech clipping prevention and similar procedure
US8582786B2 (en) 2011-06-15 2013-11-12 Alpine Electronics, Inc. Automatic gain control of amplifier by dynamic suppressing and output control at multiple stages
CN202334444U (zh) 2011-10-31 2012-07-11 四川和芯微电子股份有限公司 可调增益音频功率放大电路

Also Published As

Publication number Publication date
CN103905008A (zh) 2014-07-02
CN103905008B (zh) 2017-03-01
JP2014126854A (ja) 2014-07-07
US9319015B2 (en) 2016-04-19
US20140185833A1 (en) 2014-07-03

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