make the mic more sensitive

Gundy · Dec 23, 2003

I want to make an “amp” for the mic of a cell phone head set.
I am using one of the cheap ear bud type for the mic. (Small electret)

I built an FM converter to hear the cell phone… but the mic from the head set is not sensitive enough.
I would like to make the mic more sensitive so I don’t have to shout

I was thinking of using a simple NPN transistor pre amp circuit.
But I would like to clean up the input a little.

dingo · Dec 23, 2003

Try buying a better quaility mic.

Google "Pre Amp Circuit" here one I found from there at the top of the page

**broken link removed**

Johnson777717 · Dec 23, 2003

Check out this site. Look for "electret amplifier" or "electret preamp" or something along those lines. You should be able to find a relatively simple amplifier for your headset. Good luck!

https://www.commlinx.com.au/schematics.htm

marymoo · Dec 23, 2003

You could just buy another headset with a mic that is physically closer to your mouth since acoustic loss has a 1/r relationship.

Gundy said:
I want to make an “amp” for the mic of a cell phone head set.
I am using one of the cheap ear bud type for the mic. (Small electret)

I built an FM converter to hear the cell phone… but the mic from the head set is not sensitive enough.
I would like to make the mic more sensitive so I don’t have to shout

I was thinking of using a simple NPN transistor pre amp circuit.
But I would like to clean up the input a little.

make the mic more sensitive

Gundy

New Member

dingo

New Member

Johnson777717

New Member

marymoo

New Member

Similar threads

make the mic more sensitive

Gundy

New Member

dingo

New Member

Johnson777717

New Member

marymoo

New Member

Similar threads

Privacy & Transparency

Privacy & Transparency