I would do that in a DAW not BiaB. I used make my own loops in cakewalk or some other DAW program.

Just open the wave file in a Good DAW program with a looping set your loop point to the ends front and back. Hit play and slowly move the loop points until it loops in time with.


HP Win 11 12 gig ram, Mac mini Sonoma with 16 gig of ram, BiaB/RB 2026, Reaper 7, Harrison Mixbus 11 , Presonus Audiobox USB96