Ed, no, they do not. I have frequently done this to generate tracks to take into a sequencer, and they match up perfectly.

But - if yours do not, then I can think of a few things to check:

Is your sample rate set at 44.1 in all programs?

Is the sound in sync when you do make a BIAB song containing both RealTracks and MIDI? There is a sync adjustment that may have to be made, depending on what you use for a MIDI sound source and how you render. This could result in two files with the right tempo but where one starts at a slightly different time from the other.


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.