Automatic volume change with the ambient noise control circuit


Posted on Mar 28, 2007

Automatic volume change with the ambient noise control circuit In the set of all car stereos and the like, the high speed and low speed driving or stop driving state, ambient n


Automatic volume change with the ambient noise control circuit
Click here to download the full size of the above Circuit.

oise is different, different requirements for volume, fixed volume adjustment method will affect the listening effect. The circuit uses microphones detect ambient noise, automatic adjusting circuit according to the environmental noise sound volume will be satisfied with the results. The circuit shown in Figure circle. Circuit, the signal pickup (MIC) were detected by the feet and the lC input pin, the limiting amplifier, noise detection and detection waveform into AGC voltage, feet and legs inside the main amplifier gain control, ambient noise becomes large, the gain of the main amplifier is increased, and vice versa becomes smaller.




Leave Comment

characters left:

uma shankar`   Nov 1, 2021

Dear Sir, i am from India, i would like to design an amplifier which is automatically controls the volume based on the ambient noise. i have seen your circuit on next.gr so please advise the IC and designs on chargeable bases. thank you Sir

New Circuits

.

 


Popular Circuits

Electronic potentiometer schematic
Outband descrambler
Data Acquisition System Ii
Audio Power Amplifier Circuit
Heartbeat Monitor Circuit
Ripple current in a linear power supply transformer
phase locked loop pll oscillator
v96 ghetto charger
gps tracker project gps module jp module lcd dispaly
Knightrider lights for model cars



Top