Anti feedback technology is incorporated into mobile phones, boombars and the like so you can have a phonecall via loudspeaker without feedback, maybe you can borrow this technology, I've never gone into it but I suspect it uses a Dsp, digital signal processor.
There is another issue here, mechanical feedback, I've known problems with sustain pedals causing this, when you put a guitar in a stand with sustain effect you can get bad feedback.
There is another issue here, mechanical feedback, I've known problems with sustain pedals causing this, when you put a guitar in a stand with sustain effect you can get bad feedback.