JPS5977712A - ノイズ低減処理回路 - Google Patents

ノイズ低減処理回路

Info

Publication number
JPS5977712A
JPS5977712A JP57187316A JP18731682A JPS5977712A JP S5977712 A JPS5977712 A JP S5977712A JP 57187316 A JP57187316 A JP 57187316A JP 18731682 A JP18731682 A JP 18731682A JP S5977712 A JPS5977712 A JP S5977712A
Authority
JP
Japan
Prior art keywords
noise reduction
circuit
signal
reduction circuit
level
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.)
Granted
Application number
JP57187316A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0474886B2 (cs
Inventor
Norio Oga
大賀　典雄
Kenji Nakano
中野　健次
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP57187316A priority Critical patent/JPS5977712A/ja
Publication of JPS5977712A publication Critical patent/JPS5977712A/ja
Publication of JPH0474886B2 publication Critical patent/JPH0474886B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
JP57187316A 1982-10-25 1982-10-25 ノイズ低減処理回路 Granted JPS5977712A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57187316A JPS5977712A (ja) 1982-10-25 1982-10-25 ノイズ低減処理回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57187316A JPS5977712A (ja) 1982-10-25 1982-10-25 ノイズ低減処理回路

Publications (2)

Publication Number Publication Date
JPS5977712A true JPS5977712A (ja) 1984-05-04
JPH0474886B2 JPH0474886B2 (cs) 1992-11-27

Family

ID=16203865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57187316A Granted JPS5977712A (ja) 1982-10-25 1982-10-25 ノイズ低減処理回路

Country Status (1)

Country Link
JP (1) JPS5977712A (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0379549U (cs) * 1989-12-05 1991-08-14
KR100252646B1 (ko) * 1997-01-29 2000-04-15 윤종용 직류옵셋제거및전등화특성을갖는혼합기증폭회로

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0379549U (cs) * 1989-12-05 1991-08-14
KR100252646B1 (ko) * 1997-01-29 2000-04-15 윤종용 직류옵셋제거및전등화특성을갖는혼합기증폭회로

Also Published As

Publication number Publication date
JPH0474886B2 (cs) 1992-11-27

Similar Documents

Publication Publication Date Title
US4538297A (en) Aurally sensitized flat frequency response noise reduction compansion system
US5172358A (en) Loudness control circuit for an audio device
KR910006441B1 (ko) 디지탈 및 아날로그 변환시스템
KR900008595B1 (ko) 적응 신호웨이팅 시스템
Dolby An audio noise reduction system
US4363006A (en) Noise reduction system having series connected variable frequency filters
US4112254A (en) Signal compander system
KR880000597B1 (ko) 잡음 저감 회로
US4471318A (en) Circuit for noise reduction particularly useful with signal recording/reproducing apparatus
US4306202A (en) Compander
JPS5977712A (ja) ノイズ低減処理回路
US5325440A (en) Loudness control circuit
US4271439A (en) Electronic gain and noise control for recording of analog information
US4306201A (en) Signal processing circuit
KR100505607B1 (ko) 라우드니스 제어 방법 및 장치
JP2611233B2 (ja) 振幅圧縮伸長回路
JP2921375B2 (ja) 音声リミッタ装置
JPS6141285A (ja) 磁気記録再生装置
US4008381A (en) Multichannel record disc recording system
JPH05145992A (ja) 低音域特性補正回路
JP2640552B2 (ja) 音声信号出力装置
JPH079452Y2 (ja) 低域クリップ防止回路
JP2764205B2 (ja) ブートストラップ信号減衰回路
GB2068197A (en) Noise reduction circtuits
JP2522936B2 (ja) 自動ラウドネス制御回路