As Noel said, MME is the better choice when troubleshooting.

If you have an ASIO driver, that is preferable unless you are running another audio program at the same time as BIAB and that other audio program requires ASIO. Then MME is fine unless you are recording yourself playing keyboard and encounter latency.

Yes, BIAB 2018 introduced support for WAS drivers. I do think WAS falls in between: better performance than MME, but not as good as ASIO. However, that depends on the quality of the ASIO driver (which is vendor-specific).


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.