JPS57166715A - Audio signal processing circuit - Google Patents

Audio signal processing circuit

Info

Publication number
JPS57166715A
JPS57166715A JP5003881A JP5003881A JPS57166715A JP S57166715 A JPS57166715 A JP S57166715A JP 5003881 A JP5003881 A JP 5003881A JP 5003881 A JP5003881 A JP 5003881A JP S57166715 A JPS57166715 A JP S57166715A
Authority
JP
Japan
Prior art keywords
signal
supplied
music
signals
judged
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
JP5003881A
Other languages
English (en)
Other versions
JPS6251522B2 (ja
Inventor
Yasuaki Awanaka
Masaharu Kobayashi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5003881A priority Critical patent/JPS57166715A/ja
Publication of JPS57166715A publication Critical patent/JPS57166715A/ja
Publication of JPS6251522B2 publication Critical patent/JPS6251522B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G5/00Tone control or bandwidth control in amplifiers
    • H03G5/16Automatic control
    • H03G5/18Automatic control in untuned amplifiers

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
JP5003881A 1981-04-04 1981-04-04 Audio signal processing circuit Granted JPS57166715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5003881A JPS57166715A (en) 1981-04-04 1981-04-04 Audio signal processing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5003881A JPS57166715A (en) 1981-04-04 1981-04-04 Audio signal processing circuit

Publications (2)

Publication Number Publication Date
JPS57166715A true JPS57166715A (en) 1982-10-14
JPS6251522B2 JPS6251522B2 (ja) 1987-10-30

Family

ID=12847821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5003881A Granted JPS57166715A (en) 1981-04-04 1981-04-04 Audio signal processing circuit

Country Status (1)

Country Link
JP (1) JPS57166715A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146208A (ja) * 1983-02-10 1984-08-22 Tokuden:Kk 音楽信号用自動イコライザシステム
JPS60100684A (ja) * 1983-11-07 1985-06-04 Nisshin Steel Co Ltd 亜鉛めつき鋼板の塗装前処理方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146208A (ja) * 1983-02-10 1984-08-22 Tokuden:Kk 音楽信号用自動イコライザシステム
JPS60100684A (ja) * 1983-11-07 1985-06-04 Nisshin Steel Co Ltd 亜鉛めつき鋼板の塗装前処理方法
JPH0343347B2 (ja) * 1983-11-07 1991-07-02 Nisshin Steel Co Ltd

Also Published As

Publication number Publication date
JPS6251522B2 (ja) 1987-10-30

Similar Documents

Publication Publication Date Title
JPS5733834A (en) Frequency modulation noise reducing circuit
JPS5728409A (en) Muting circuit
EP0354519A3 (en) Surround decoder
JPS57166715A (en) Audio signal processing circuit
EP0373760A3 (en) Fm channel separation adjustment
KR840005289A (ko) Am 스테레오 수신기용 보호회로
JPS5752240A (en) Noise reducing circuit
AU8009587A (en) A tone control system for sampled data signals
US5136649A (en) Fm stereophonic receiver
JPS5781740A (en) Transmitter of pcm signal
JPS5220801A (en) Automatic voice frequency elimination and control system
JPS56146381A (en) Television voice receiving device
JPS56161731A (en) Stereo noise reducing method and its device
JPS5610782A (en) Demodulating circuit for sound multiplex broadcast
JPS5769915A (en) Automatic gain control circuit
JPS5367401A (en) Processing circuit of input angle modulated wave signal in demodulationcircuit of angle modulated wave signal reproduced from multichannel discerecorder
JPS51117857A (en) Automatic gain control circuit
JPS5784690A (en) Automatic gain control circuit in video signal transmission system
JPS6413802A (en) Level adjusting circuit
JPS5711515A (en) Automatic gain control amplifier
JPS5573178A (en) Aural muting circuit for television picture receiver
JPS5714230A (en) Fm stereophonic receiver
JPS54152414A (en) Squelch system of fm mobile radio equipment
JPS57197927A (en) Semiconductor integrated circuit device
JPS5767344A (en) Am stereo receiver