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Re: CoreMIDI SysEx & MIDIMonitor
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Re: CoreMIDI SysEx & MIDIMonitor


  • Subject: Re: CoreMIDI SysEx & MIDIMonitor
  • From: Herbie Robinson <email@hidden>
  • Date: Thu, 31 Aug 2006 03:57:06 -0400

Good call! I didn't think of that. I launched DP4.5 and it did the same thing as MIDIMonitor. Just having the app open changed how the whole MIDI subsystem worked (or didn't, as the case may be). Man, I must be missing something pretty basic here. Something else I need to do to make sure the MIDIServer is fully running?

It's possible the "spy" has something to do with it, but I'm kind of skeptical. It only operates on outgoing MIDI data (usually sent by applications), not on data that comes into the computer via other MIDI interfaces. If you're only reading input data and not writing, or MIDI Monitor isn't running, it shouldn't be doing anything at all. (What happens if you uncheck everything in the Sources section under "Spy on output to destinations"?)

Right - I tried unchecking everything and it didn't change the behavior. When MIDIMonitor is just launched (not even looking at any streams) my app works correctly.

I assume you are calling MIDIClientCreate...

If this is a command line test program, you might want put in a short sleep after doing initialization. I had to sleep for a second to get things to work properly. Most applications are interactive; so, they aren't affected by this. This is especially true if the drivers need to sync a time base with the interface.
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  • Follow-Ups:
    • Re: CoreMIDI SysEx & MIDIMonitor
      • From: "David A. Hoatson" <email@hidden>
References: 
 >Audio Units: calling SetParameter from within Process() (From: Artemiy Pavlov <email@hidden>)
 >Re: Audio Units: calling SetParameter from within Process() (From: stiwi <email@hidden>)
 >CoreMIDI SysEx & MIDIMonitor (From: "David A. Hoatson" <email@hidden>)
 >Re: CoreMIDI SysEx & MIDIMonitor (From: Robert Martin <email@hidden>)
 >Re: CoreMIDI SysEx & MIDIMonitor (From: "David A. Hoatson" <email@hidden>)
 >Re: CoreMIDI SysEx & MIDIMonitor (From: Kurt Revis <email@hidden>)
 >Re: CoreMIDI SysEx & MIDIMonitor (From: "David A. Hoatson" <email@hidden>)

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