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Using all inputs/outputs from MOTU ultralight
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Using all inputs/outputs from MOTU ultralight


  • Subject: Using all inputs/outputs from MOTU ultralight
  • From: Todd Blanchard <email@hidden>
  • Date: Wed, 5 Mar 2008 00:49:14 -0800

The MOTU ultralight has 8 analog outputs. I'm trying to map them to outputs of a matrix mixer.

I'm getting an error connecting to output channels other than channel zero.

I set the number of outputs on the matrix mixer to be the same as the number of outputs on the ultralight. Then I go spinning through them connecting the output n of the mixer to the input of output n of the ultralight. All but channel zero results in an error.

I have similar difficulties connecting to the output of the various input channels. I can only connect to one. I spent a bunch of time playing with HALLab. HALLab never seems to enable its controls and trying the soft play through results in a signal passing from input 3 (the only one I have hooked up) being passed to output 1 (left channel only) and this is not a clean signal - it just sounds like static.

So I'm kind of stuck - I'd like to see an example of what amounts to a virtual patchbay between the inputs and outputs of such a device using AUGraph and a MatrixMixer in the middle to allow routing from inputs to outputs.


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