Thanks Jim. I'd like to try that but I can't find them on my system. For example, BiaB offers only two choices: MME and ASIO. Searching brings up a lot of discussion for users and developers, but I haven't yet found an explanation of how to download or activate WASAPI drivers. I'm running Win10 Home x64, version 1607, OS build 14393.447.

Ah, Just discovered: when I switch from ASIO to MME and use the Microsoft Sound Mapper (is that the WASAPI?) the latency is improved significantly! But it's still audible, and since the TTS-1 softsynth is DXi, BB insists on resetting any (midi) latency tweaks I make.

And there's also the (long standing issue) that with MME, I can't audition the thru patch without playing the song. Big bummer for me. I think I've seen hints on the forum this may change in the next version. Fingers crossed. Both hands smile

Thanx again, -Ron

EDIT - I see on my desktop Win 10x64 system (same build as on lappy), for Sonar (but not for BiaB), there is a WASAPI driver mode.

Last edited by rkl122; 11/30/16 10:50 AM.