Originally Posted By: Noel96
Hi Tony.

I've added some additional thoughts below given the information you've added.

Originally Posted By: Tony Wright
Thanks Noel
I don't need to prove that pressing a qwerty key will generate then start the song. In fact, since i am having trouble using a piano keyboard press to do this, I always use a foot switch programmed with "space bar" and this works every time with no Access Violation.

"Space bar" and "Press any MIDI or QWERTY key" are two different functions in BIAB (see #1 and #2 on the image below). Using your foot-switch that activates the spacebar is not the same as pressing a qwerty key.

Quote:
I am not sure what you mean by "see if a MIDI key from your Roland will start playback" The Roland synth has no keys and I can always start playback using my computer keyboard. It's just that I always get an access violation if I keep playing the piano while it is connected to the computer and I never get this if I simply stop playing the piano.

I didn't realise that the SD-50 was a sound module. I thought it was a Roland keyboard synth.

Does this mean that you have a keyboard connected to BIAB and that BIAB is set to play its MIDI sounds from the Roland SD-50, which means that the keyboard you have connected also accesses the SD-50's sounds? Is the Focusrite mentioned in your original post the device that allows you to connect to your speakers. Also, am I correctly interpreting your original post to mean that you have a separate USB connection for your MIDI keyboard?

If I am correct, are your BIAB MIDI Driver settings as follows?....

(a) Input device = MIDI keyboard through the USB MIDI device

(b) Output device = Roland SD-50 Sound Module (maybe as a VST synth)

Regards,
--Noel


The way you describe input/output and Preferences is EXACTLY the way I have had things set up for years and it worked perfectly until 2022 when I started getting the access violations while playing. I would add that I also have to have Midi Thru set in Midi options otherwise “pause till midi received” doesn’t start the play.

I think the key points are.
1) The songs continue playing with no interruptions as long as I don’t play along at the same time. If I start to play along then sooner or later I get the violation.
2) It almost seems like BIAB or my computer doesn’t like being connected to my piano keyboard via a midi cable, and continuing to receive midi as I play, while BIAB is also generating it’s own midi. Here’s a clue. If I reduce the Thru strength to say minus100 (in midi options) then the problem disappears but then the midi signal from my piano is too weak to start BIAB playing in the first place.
3) The problem doesn’t seem to have anything to do with using external midi and sound devices because it is exactly the same using just the computer.

I am using WIN10 and have updated but I haven’t tried any computer changes except as noted in my original post.

You can see why I gave up two years ago!

Tony