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Re: AUSplitter: Second output returns error on creation
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Re: AUSplitter: Second output returns error on creation


  • Subject: Re: AUSplitter: Second output returns error on creation
  • From: "Felipe Bruno Baytelman P." <email@hidden>
  • Date: Sun, 14 Oct 2007 16:09:08 -0300

I'll be looking in the list's archive, and I've found a partial answer for my question:

> If I want to render to 2 different output
> devices what would be an alternative to creating a second graph?

Use the aggregate device services. You run a single I/O Proc but can direct the output to different devices that are part of the aggregate. You can experiment with this in AULab - create an aggregate and use that as the target device for your AULab document. You can see there how you can make a UI to target the different channels of your document to the different channels of the device (both for input and output). The underlying implementation of AULab is a single AUGraph, with an AUHAL output unit that is targeted to the selected device... (In AULab's debug menu you can even print the session document to have a look at how we construct this). AULab can be found in /Developer/Applications/ Audio

Bill

This is what I need: To connect a single graph to one or two output. I'll try to find out how to create such aggregate.

Regards,
--Felipe

On Oct 14, 2007, at 3:21 PM, Felipe Bruno Baytelman P. wrote:

Hello
I am trying to set up a AUSplitter, but when I create the second output, I receive error -10862 (because the graph has already an input).
Should I create a second graph?


Is there a quick example on how to set up a splitted graph?

Thanks,
--Felipe Baytelman
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