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Weird glitch...between iMac and kronos (F above middle C)
Posted: Fri Feb 13, 2015 9:26 pm
by apex
I've noticed that whenever I have my Kronos connected via USB to my iMac (even with no software running) every time I push the F above middle C key on the kronos, I get a white flash on the screen of the iMac....
super weird. Has anyone else experienced this before
Thanks
Posted: Fri Feb 13, 2015 9:36 pm
by danmusician
My K73 is almost always connected to my iMac. Never noticed that...
Posted: Fri Feb 13, 2015 10:51 pm
by SanderXpander
Maybe the white flash is in your brain at this frequency?
Posted: Sat Feb 14, 2015 7:52 am
by BobTheDog
OS X can be set to flash the screen white on alert sounds.
Check Universal Access->Hearing->Flash the screen when an alert sounds.
If that is set then you need to start looking for something that is causing alerts based on midi messages!
Posted: Wed Feb 18, 2015 6:59 pm
by apex
BobTheDog wrote:OS X can be set to flash the screen white on alert sounds.
Check Universal Access->Hearing->Flash the screen when an alert sounds.
If that is set then you need to start looking for something that is causing alerts based on midi messages!
ok. This is what I had considered, but I didn't really think that it was a computer notification.
I wonder what kind of midi messages would make the computer itself give a error or notification
Posted: Wed Feb 18, 2015 7:43 pm
by SanderXpander
Could also be audio. Kronos sends the L/R mains over USB. If your Mac recognizes it as an audio device, perhaps its considering your playing as sound input?
Posted: Wed Feb 18, 2015 7:48 pm
by apex
SanderXpander wrote:Could also be audio. Kronos sends the L/R mains over USB. If your Mac recognizes it as an audio device, perhaps its considering your playing as sound input?
but why would that cause a notification flash to appear?
Posted: Wed Feb 18, 2015 7:52 pm
by SanderXpander
I was going by what BobTheDog said. I don't use OSX.
Posted: Wed Feb 18, 2015 8:20 pm
by BobTheDog
The first thing to do is check if the flash setting is turned on?
Posted: Wed Feb 18, 2015 8:38 pm
by apex
nope it is not. you said check the hearing parameters right?
Posted: Wed Feb 18, 2015 9:19 pm
by BobTheDog
Yep, so it's not an alert issue then.
I must admit I have never seen the screen flash unless this is turned on.
Do you by any chance have Logic running when this is occuring?
Posted: Wed Feb 18, 2015 9:25 pm
by midiman
apex wrote:nope it is not. you said check the hearing parameters right?
The flash is actually Logic's error condition. Maybe your keyboard is being detected as a control surface. Are you using a midi control surface as well? You might try trashing your control surface prefs
Posted: Thu Feb 19, 2015 4:20 am
by apex
midiman wrote:apex wrote:nope it is not. you said check the hearing parameters right?
The flash is actually Logic's error condition. Maybe your keyboard is being detected as a control surface. Are you using a midi control surface as well? You might try trashing your control surface prefs
How do I delete those pref? And no I don't have a control surface that I know of. Lol
Also why would it only flash when I push one or two certain keys?
Posted: Thu Feb 19, 2015 7:39 am
by BobTheDog
Logic Pro->Preferences->Control Surfaces->Setup
Then you can see any control surfaces setup, then:
Edit->Select all
Edit->Delete
The flashing could occur as the Control Surface is programmed to take certain actions on certain midi messages.
Originally I didn't think of Logic as you said in the original post that it occurred with no software running on the machine.
Posted: Thu Feb 19, 2015 10:24 pm
by apex
I get this message each time Logic starts. If I follow the directions to reset the midi drivers, the message pops up again.
I do have two control surfaces installed.... i am not sure how they got there, but I can't uninstall them either. the delete option is not available.