What are selecting as your audio driver? If both the Sibelius and Band-in-a-Box have the same audio driver selected, chances are really good that won't work. Try setting one program to ASIO and the other to MME.

If it helps the only time it's better to use ASIO is when you're recording. Hardware manufacturers typically provide hardware specific audio drivers to reduce latency (how long it takes to process sound) while recording.


Jim Fogle - 2025 BiaB (Build 1128) RB (Build 5) - Ultra+ PAK
DAWs: Cakewalk Sonar - Standalone: Zoom MRS-8
Laptop: i3 Win 10, 8GB ram 500GB HDD
Desktop: i7 Win 11, 12GB ram 256GB SSD, 4 TB HDD
Music at: https://fogle622.wix.com/fogle622-audio-home