Implementing a mixer with send outputs
Implementing a mixer with send outputs
- Subject: Implementing a mixer with send outputs
- From: Robert Grant <email@hidden>
- Date: Wed, 15 Jan 2003 10:32:48 -0500
My reading of the Audio Unit Rendering doc has left me with little
understanding as to
how I'd go about implementing a 12 channel + 4 effects sends mixer. To
emulate a
real mixing desk (which is kind of like two mixers in one) I think I'd
need two mixer
AUs. The first would do the audio routing to the send busses and the
balancing
of the main buses and the second would handle the send effect return
mixing with
the main output of the first mixer.
Is that even the right approach? Could it all be done inside a single
AU?
From the AU Rendering doc a mixer is supposed to call for input
on all the connected inputs and then render output, but if the send
busses also need
output then I don't want to call for input again do I? I guess if I
pass the same timestamp
in they'll just pass the same data back again and then I can adjust the
gain of the data
based on each inputs send level.
Lastly I see the stereo mixer has been upgraded to V2, but didn't it
lose a ton of inputs in the process? Or am I thinking of a different V1
mixer?
Thanks for reading - partly this was an exercise for me to gather my
thoughts...
Robert.
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