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Results tagged with microphone
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user 36307
A sensor converting an acoustic signal into an electric one.
1
vote
Accepted
Building an electret microphone amplification circuit, it's not working
The current through this resistor powers up a one-transistor FET amplifier that is built-in to the 'computer microphone'. … Another solution would be to use a different type of microphone. In either case, the circuit will benefit from some additional work. …
- 1,799
2
votes
Common Source JFET Amplifier
The gain of this circuit isn't set by the ratio of R2 to R1. The capacitor CS is shorting out R1, and helps with the gain. However, to do this at audio frequencies, the capacitor value needs to be muc …
- 1,799
4
votes
Microphone mute anti-pop circuit works but still picks up a little audio
Check to see if C2 is microphonic by listening while tapping directly on C2. If this is the problem, it can be fixed by replacing C2 with a Mylar capacitor. Ceramic capacitors are often microphonic. I …
- 1,799