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Multi-channel loop software: Audio Unit vs. Host?
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Multi-channel loop software: Audio Unit vs. Host?


  • Subject: Multi-channel loop software: Audio Unit vs. Host?
  • From: Boris Lau <email@hidden>
  • Date: Sat, 27 Apr 2013 17:54:38 +0200

Hello there,

I want to develop a multi-channel loop-station software. In short, it should use 2-3 input channels, distribute them on multiple loop-slots, and either record or playback the loops, the whole thing remote controlled by MIDI.

I'm new to CoreAudio (former VST developer), and I'm a bit stuck with the question on how to design the architecture. What's the best way to do this:
1. Put everything into one big audio unit
2. Write one audio unit per loop-slot and use a mixer
3. Write a 'host' application and use audio units only for FX


I tried to look at the CocoaAUHost example mentioned in the Audio Unit Programming Guide, but I can't find it anywhere. It's not in the XCode-included framework, not in the CoreAudio Utitilies Code, and not in the Audio-Tools DMG. Has it been removed during the restructuring of XCode frameworks?

Thanks for any help,
Boris
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