What makes the system recognize an AudioUnit?
What makes the system recognize an AudioUnit?
- Subject: What makes the system recognize an AudioUnit?
- From: Brian Willoughby <email@hidden>
- Date: Sun, 08 Apr 2012 18:27:41 -0700
Hello all,
Is there any technical documentation listing all of the attributes
required of an AudioUnit for it to be fully recognized by the system?
Over the years, I've had temporary situations where an AudioUnit
project would not compile into a proper AU - in that it was not
recognized by Logic or auval or anything else. Sometimes auval will
say that it is ignoring a component, but does not really say why. So
far, I've always been able to poke at the Xcode project until it
built properly, but not this time.
I know that an AudioUnit must be in a particular user or system
directory, that it is a component with resources, and that it must
have a particular entry point. The problem is that if auval ignores
an AU, I have no idea how to determine what needs to change. It
would be great to see a list of requirements in the order that
they're checked by an AU host, and then I could just look for each
one in turn until I find what is missing. Presumably it would then
be possible to fix the Xcode project so that the AU would build
properly with all required attributes.
Thanks for any help,
Brian Willoughby
Sound Consulting
P.S. I am trying to build from Xcode 2.5 on Tiger, for maximum
compatibility. The resources seem to be created, because I see ./
Contents/Resources/AudioUnitName.rsrc, but something must be missing,
still.
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