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


  • Subject: Is kAudioUnitSubType_DLSSynth compatible with the Mac OS X App sandbox
  • From: Ross Bencina <email@hidden>
  • Date: Mon, 13 May 2013 15:34:24 +1000

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?

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


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.

Many thanks,

Ross.

[0] http://developer.apple.com/library/ios/#technotes/tn2247/_index.html
[1] http://stackoverflow.com/questions/13318480/core-audio-doesnt-seem-to-work-when-using-sandboxing
[2] http://lists.apple.com/archives/coreaudio-api/2012/Jul/msg00064.html
[3] http://lists.apple.com/archives/coreaudio-api/2013/Feb/msg00091.html
[4] http://stackoverflow.com/questions/13318480/core-audio-doesnt-seem-to-work-when-using-sandboxing
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