12-18-2019, 05:31 PM
Unfortunately, MobileSheets uses Microsoft's UWP MIDI library (there aren't any alternatives), and this seems to have problems detecting and connecting to KORG keyboards for some users. Some users have had to put a MIDI hub or adapter in between the KORG keyboard and MobileSheets to get it to work. Other users installed updates to the KORG driver and that helped. I don't really have a great answer at this time. I use a KORG Micro-air keyboard and I can connect it to all my Windows devices without issue, but it's a simple keyboard and uses a generic MIDI implementation that doesn't require a driver. The keyboards that require a driver are really the ones that seem to experience problems. I have contacted Microsoft about this multiple times and they were absolutely no help (I posted the link to my post on Microsoft's forum in another forum post addressing this same issue).
The reason you don't see problems with Sibelius, Cubase, or Musescore is that they are utilizing other MIDI implementations that seem to work far more reliably for USB connections. I would use that same approach if I could. I've tried everything I can think of to get around having to use Microsoft's library, but the limitations they've put in place for UWP applications makes it impossible. I have considered creating a WPF version of MobileSheets for just this reason (which would require about a 25-35% rewrite of the code).
Sorry I don't have a better answer - I'm not sure what to do if the only MIDI library Microsoft makes available (their own) doesn't function properly.
Mike
The reason you don't see problems with Sibelius, Cubase, or Musescore is that they are utilizing other MIDI implementations that seem to work far more reliably for USB connections. I would use that same approach if I could. I've tried everything I can think of to get around having to use Microsoft's library, but the limitations they've put in place for UWP applications makes it impossible. I have considered creating a WPF version of MobileSheets for just this reason (which would require about a 25-35% rewrite of the code).
Sorry I don't have a better answer - I'm not sure what to do if the only MIDI library Microsoft makes available (their own) doesn't function properly.
Mike