I watched the video. I suspect that is not the issue because my latency reading is 30 but it is a theory :-) I attached the "Midi/Audio Drivers Setup" screen.

I did the quantize at 100% and it fixed the piano roll. Now that is a huge time saver over what I have done with manual snapping. Thanks so much VideoTrack! It was the 100% that did it. I attached the screen. I am helping a vocalist in our jam group. Here are the instructions I gave him.

To quantize to 100%, Click Melody on the menu. Click Edit melody track, Quantize time adjust, choose Quantize Melody, then set the % strength to 100 so it forces perfect on the beat timing (choose quantize start times only because you need a bit of a gap between notes if they are the same note such as the "One Note Samba" Song). I also left the Resolution per bar at 16.

But ideally it would be better if the delay did not exist. Here is the interesting part. The lead in bar and the 1st bar were entered a long time ago and the delay was not noticeable with my ear. The 2nd and 3rd bar were entered recently and the delay is a lot larger as you can see on the Piano-roll. I am wondering if I may have been running another software at the time and if it is better to have nothing running but BIAB when entering notation. Does anyone have any thoughts on this?

Regarding latency it would be nice to have a latency analysis software that can give a report. Does this exist? I tried google "computer latency analysis software". Its a deep dive :-)

Attached Files (Click to download or enlarge) (Only available when you are logged in)
BIAB_AudioMidi.png (42.44 KB, 148 downloads)
Quantize.png (23.99 KB, 148 downloads)
Last edited by bowlesj; 03/26/21 01:21 PM.

John Bowles
My playing in my 20s:
https://www.reverbnation.com/johnbowles