Hi, David… I hope I can explain this… I actually think we’re talking about the same thing, here. To maybe help, let me explain what I did with my last looper, the Pigtronix Infinity.
Let’s say I was making a long, sustained drone. The way I would have it be somewhat seamless is, after recording it for a while, I would go straight to overdub, while the drone was still sustaining. It starts overdubbing, and then after another few seconds, I’d let it decay, but it decays in the midst of the original loop playing, so you don’t really hear a transition from where I went to overdub. I think that’s because the Infinity (as they described it) had a small crossfade that would occur right at the overdub point (which, I think is the same thing as your ‘loop seam’ concept). Pigtronix called this "click killer’, something you could turn on or off (because the PI was always more or less freeform, didn’t have sync to measure capabilities).
Does that make sense? I mentioned in another post (either here or TGP, can’t remember) about having this crossfade length be a bit more adjustable… the PI, due to whatever limitations, had a quite short one, so sometimes, even with that technique (esp if it was a texture with some movement in it), you’d still hear a bit of a gap.
I do think we’re talking about the same thing, but I think another dimension with the Aeros (if this is possible) is to have it so that can occur with locked tracks, as well. If I’m locking the track on my main drone on Part 1 (which will sound seamless, if I did it right), and then am going to have it continue when I switch to part 2, without some sort of crossfade there, it won’t be smooth. That’s why some sort of slider adjuster for the length of the xfade/seam would be useful, so it could carry over to the next part of a locked track.
I hope I’m not overanalyzing this - I know a lot of people use the looper pretty conventionally, but there are also a lot of soundscapers out there that, like me, see this as being the most amazing looper for soundscapers (I’m already evangelizing about it!).
Thanks for reaching out, this is why Iike dealing with the smaller companies.