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Re: Is kAudioUnitSubType_DLSSynth compatible with the Mac OS X App sandbox
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Re: Is kAudioUnitSubType_DLSSynth compatible with the Mac OS X App sandbox


  • Subject: Re: Is kAudioUnitSubType_DLSSynth compatible with the Mac OS X App sandbox
  • From: Roni Music <email@hidden>
  • Date: Tue, 14 May 2013 07:45:14 +0200


Hello all,

Q: Is Apple's DLS Synth Audio Unit (kAudioUnitSubType_DLSSynth)
compatible with the Mac OS X sandbox? (on OS X 10.7, 10.8 and later).

The only way I have been able to get it to work is by adding the
following entitlement:

 com.apple.security.temporary-exception.audio-unit-host

This entitlement causes an unpleasant security message to be displayed
to the user [0].

Q: Is there a way to use DLS Synth without the unpleasant security message?

I haven't found another way


Q: Does anyone know whether the App Store will publish apps with
com.apple.security.temporary-exception.audio-unit-host set?

My Sweet MIDI Player app is published at the app store with
"com.apple.security.temporary-exception.audio-unit-host"
set so that should not be a problem.

But it would be interresting to know why this flag must be used.

Rolf Nilsson/Roni Music





I have not found direct confirmation to these questions anywhere,
although there is a similar unanswered question on Stack Overflow [1].
Similar questions have been asked (and not answered) regarding
kAudioUnitSubType_AudioFilePlayer [2,3,4].

It would be most excellent to get a definitive answer from Apple. But
failing that I'd be happy to hear from anyone who has had the same issue.


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