I have a Mic+ installed on my RPi4 and I’m getting some sort of feedback. I don’t believe it to be a power issue and I’ve played a “silence.wav” file to try to get rid of it (unfortunately without success). There aren’t any GPIO conflicts that I’m aware of either. I can hear the same feedback when I play the test.raspiaudio.com test from installation. It’s very noticeable on the playback of that test.
The feedback sound changes - and sometimes goes away for a while - when you push down slightly on the board or mic or speakers. What can be causing this? Thank you in advance.