Segmenti: can I turn off input monitoring? (Or somehow stop the feedback craziness?)

Hi! I’ve been using my Organelle M portably a lot while I’m learning, and I’ve been trying to figure out how to record into Segmenti with the internal speaker on without getting crazy amounts of feedback. I gave up on the internal mic and have started using an external mic (a Tascam DR-05), but it’s still incredibly sensitive and feeds back if I turn the volume up beyond a miniscule amount.

Is there a way to turn down/off the input monitoring volume? Is the only option to turn the speaker off while recording?

In a broader sense, is this patch just not meant for use with a microphone? It seems that you’d have trouble avoiding feedback unless you’re using headphones.