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Matrix Mixer & Busses
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Matrix Mixer & Busses


  • Subject: Matrix Mixer & Busses
  • From: "Andrew Butcher" <email@hidden>
  • Date: Fri, 19 Sep 2008 13:24:42 -0600

Hi,

I'm new to Core Audio (and audio programming in general), but I'm writing an ambisonic panner. I realize that 3DMixer has it covered, but 3DMixers limitations (supported speaker arrangements, order of approximation) require that I implement my own.

I'm not sure how to conceptualize the audio graph to support independent panning of an arbitrary set of sources. In particular, I don't know how what to make of bus counts, and whether I need one matrix mixer, or one matrix mixer per (independently panned) source.

I think I need a single matrix mixer with a number of input busses equal to the maximum number of sources to be played at a time, and an output bus per device to render to. Does this seem about right?

Thanks!
Andrew.

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