I think you are onto something. Any number of programs in the background could affect you. I always reboot before recording. Then check Process Monitor to see what’s running.

512 should be both stable and adequate for latency.

I wonder if that card works in Windows 10. It actually might if installed in compatibility mode for 7.


BIAB 2026 Win Audiophile. Software: Fender Studio One 8, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Presonus Quantom HD8 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.