I’d like to write my experience when we soldered these jumpers.
After we soldered the jumpers a new weird noise was introduced even when microphone wasn’t plugged in.
Tried changing from RPi’s original AC adapter to power-bank and it’s the same.
When I connected electret microphone I’ve got a lot of noise, and I would really give some gain to hear it loud, but then noise would became a lot louder.
Did anyone used PiSound with electret microphones, and have you guys noticed the same?
Which microphones you used?
For my purpose, none of noise reduction filters shouldn’t be used so software solution isn’t a way to go, sadly…
Any thoughts how “fix” this?
Mics I’ve tried:
- RODE VideoMicro
- Sony ECM battery powered condenser
- BM700 from China, cheap mic, has least noise, but still noticeable
- some lapel microphone, no name
- dynamic karaoke microphone
All of these mics sound great when plugged in for example Zoom H4n, no noise…
Oh and, I’ve noticed now that somehow (I think) electricity that should go to microphone some of it goes to the headphones, with low impedance headphones it’s more noticeable, with high impedance ones there’s less noise but still noticeable!