sammichSID unexpectedly changing patches

[jaytee]

This has happened just often enough in the last week or so that I want to get to the bottom of it.

 

During the last few long sessions with my sammichSID, about 3-4 times I've looked down and realized that it has, seemingly spontaneously, changed banks and thus patches. For instance, I'll be using patch B022. My mix will sound weird, I'll look down, and it has switched to A022. When I go to the ensemble page, it displays that I'm in Bank A, but when I go to adjust it, it jumps straight to C, as if it thought it was still in Bank B; I have to notch it up (to C) then back down to get back to Bank B.

 

It's entirely possible that this is error on my part. The last issue I had with my MB SID turned out to be some garbage CC automation that had showed up in my DAW somehow. Is it possible I'm sending some kind of Program Change MIDI message unintentionally (using Ableton Live, FWIW)? Is there a MIDI message that changes only banks and not patch numbers?

 

I haven't "caught" the issue happening yet; as I said, it's only been a handful of times over the last week or two. Normally I would hook up a MIDI monitor to see if that's what's causing it, but I would have to leave it running for a day or two to catch it and then sort through once I notice it's happened. Not impossible, but I just thought I'd ask for a little guidance first.