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Re: Problem with Core Midi on 10.6
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Re: Problem with Core Midi on 10.6


  • Subject: Re: Problem with Core Midi on 10.6
  • From: Peter Zegelin <email@hidden>
  • Date: Fri, 28 Aug 2009 12:12:31 +1000

Ok,

I am just using the MusicPlayer connected up to the DLSSynth. This has all worked fine for years. The user tried various files and none work. They all play fine in Quicktime. If it is any help, the app is built with REALbasic so it would be carbon. It could be an RB problem but it just calls through to CoreAudio/CoreMIDI.

I'll probably install 10.6 this weekend so I will be able to reproduce the problem (or not) so maybe I will get some errors that don't show up in the console.

Peter


On 28/08/2009, at 11:56 AM, Peter Rebholz wrote:

I think he's saying that the midi driver probably isn't the problem since it works in 32 bit mode. But, if you want to keep it in 64 bit mode using the USB driver would be one method.

What might be helpful is if you could describe how you are playing the MIDI through the system audio.

Peter

On Aug 27, 2009, at 5:27 PM, Peter Zegelin <email@hidden > wrote:

Hi Markus,

I'm sorry but I don't quite understand. The users external device is working properly, it is playing MIDI through the internal speakers that isn't working. Are you saying that his Roland driver is causing this?

Peter
fracturedsoftware.com



On 27/08/2009, at 10:08 PM, Markus Fritze wrote:

Hi,

CoreMIDI supports 32 bit drivers, it does so by relaunching the MIDI server in 32 bit mode. In your case you have a Roland MIDI driver installed, which is not a 64 bit driver. You can remove that driver, if you configure your Roland keyboard to be a USB MIDI compliant device (read the manual for that, it is not obvious, but possible)


Markus Fritze Apple Inc. <http://www.apple.com> Sr Software Engineering Manager - Audio/Music Applications


Hello,

My midi player application, Rondo, is apparently not working properly on 10.6. A new user has just reported that it refuses to play any sound out through the internal speakers of his brand new MacBook Pro. Sound through his external keyboard plays fine. He says the following console message appears on start up:

8/27/09 2:45:47 AM MIDIServer[542] MIDIServer [542] starting; arch=x86_64
8/27/09 2:45:47 AM MIDIServer[542] PlugIn RDUSB0005Midi.plugin -- /Library/Audio/MIDI Drivers/ does not contain a supported architecture.
8/27/09 2:45:47 AM MIDIServer[542] MIDIServer relaunching because a 32-bit driver was found
8/27/09 2:45:47 AM MIDIServer[542] MIDIServer [542] starting; arch=i386


however, this looks to my uneducated eye more like his external device driver is reconfiguring itself to run in 32 bit mode.

I don't have 10.6 yet - will buy it in the next few days - however does anyone know what may be going on? Just as importantly can I suggest some way this user may find out if my app is having problems with some 64 bit vs 32 bit incompatibility and what he may be able to do about it?

Am I due for a bunch of support problems :-(

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  • Follow-Ups:
    • Re: Problem with Core Midi on 10.6
      • From: William Stewart <email@hidden>
References: 
 >Problem with Core Midi on 10.6 (From: Peter Zegelin <email@hidden>)
 >Re: Problem with Core Midi on 10.6 (From: Markus Fritze <email@hidden>)
 >Re: Problem with Core Midi on 10.6 (From: Peter Zegelin <email@hidden>)
 >Re: Problem with Core Midi on 10.6 (From: Peter Rebholz <email@hidden>)

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