Capturing audio with playthrough question (ComplexPlayThrough sample)
Capturing audio with playthrough question (ComplexPlayThrough sample)
- Subject: Capturing audio with playthrough question (ComplexPlayThrough sample)
- From: Mark Munte <email@hidden>
- Date: Mon, 5 Mar 2007 12:08:56 +0100
Hi list,
these are my first steps in Core Audio and I would appreciate some
advice.
What I would like to do is capture audio from the built in "Line in"
device (as buffers) and also play the audio back while capturing on
the default output device.
Now, I've read TN2091 (http://developer.apple.com/technotes/tn2002/
tn2091.html) and my understanding is that since on the newer Intel
Macs there are separate devices for input and output, there's no way
of doing a "simple play through", right?
Now, I've downloaded the ComplexPlayThrough sample and I am wondering
if I need the Varispeed Unit fo what I'm trying to accomplish. Can't
I just setup the input and output device with the same stream
description and just pass on the incoming buffers to the output
device? Is there any good reason to not do it this way?
Also, I've setup notifications for device steam changes, and I see
that other apps can change my device's stream description while I am
capturing. Is there a way to avoid that, can I take exclusive
ownership of the device(s)?
Thanks
Mark
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