CN103905008B - 音频处理设备和音频处理方法 - Google Patents

音频处理设备和音频处理方法 Download PDF

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Publication number
CN103905008B
CN103905008B CN201310741393.7A CN201310741393A CN103905008B CN 103905008 B CN103905008 B CN 103905008B CN 201310741393 A CN201310741393 A CN 201310741393A CN 103905008 B CN103905008 B CN 103905008B
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China
Prior art keywords
gain
level
audio
audio signal
unit
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Expired - Fee Related
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CN201310741393.7A
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English (en)
Chinese (zh)
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CN103905008A (zh
Inventor
池田信吾
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Canon Inc
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Canon Inc
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Publication of CN103905008A publication Critical patent/CN103905008A/zh
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Expired - Fee Related legal-status Critical Current
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Classifications

    • 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)
CN201310741393.7A 2012-12-27 2013-12-27 音频处理设备和音频处理方法 Expired - Fee Related CN103905008B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-286160 2012-12-27
JP2012286160A JP6105929B2 (ja) 2012-12-27 2012-12-27 音声処理装置及びその制御方法

Publications (2)

Publication Number Publication Date
CN103905008A CN103905008A (zh) 2014-07-02
CN103905008B true CN103905008B (zh) 2017-03-01

Family

ID=50996186

Family Applications (1)

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CN201310741393.7A Expired - Fee Related CN103905008B (zh) 2012-12-27 2013-12-27 音频处理设备和音频处理方法

Country Status (3)

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

Families Citing this family (12)

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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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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
CN102740212A (zh) * 2011-04-13 2012-10-17 奥迪康有限公司 具有自动削波防止的听力装置及相应方法

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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
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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
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CN101807894A (zh) * 2009-02-16 2010-08-18 索尼公司 音量校正装置，音量校正方法，音量校正程序以及电子设备
CN102740212A (zh) * 2011-04-13 2012-10-17 奥迪康有限公司 具有自动削波防止的听力装置及相应方法
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
JP2014126854A (ja) 2014-07-07
US9319015B2 (en) 2016-04-19
JP6105929B2 (ja) 2017-03-29
US20140185833A1 (en) 2014-07-03

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Granted publication date: 20170301