I can't check right now, but it's possible that the patent predates my use of the technique. Even if not, I don't know how I could prove it. By the way, it was

I can't check right now, but it's possible that the patent predates my use of the technique. Even if not, I don't know how I could prove it. By the way, it wasn't done in code; I did it manually in Ardour [0]. [0] <https://ardour.org/> https://ardour.org/>