Re: capturing AUGraph output
Re: capturing AUGraph output
- Subject: Re: capturing AUGraph output
- From: Robert Grant <email@hidden>
- Date: Sun, 5 Oct 2003 10:24:27 -0400
Hi Chris,
If you're wanting to capture the "live" output from the graph then I
think you're supposed to use the AudioUnit "Render Notification"
mechanism that gives you access to the audio buffers that have been
sent to the output. I don't know how long these buffers are available.
So in the end I guess I'm requesting that once the technique is
explained it gets documented at the Swiki :-)
Robert.
On Sunday, October 5, 2003, at 12:33 AM, Christopher Corbell wrote:
Given an AUGraph that terminates in a default
output device, how can one capture or copy the
output audio data? I want to grab the data
after all of the effects in the chain etc.
have been applied.
Do I need to create a custom AU for this, e.g.
an output unit subclass that writes render data
to a buffer rather than sending it to a device?
Or an effect subclass between mixer output and output
device input, which simply copies the data and
then passes it on?
Or is some facility already available? Or is
there a quicker approach?
Thanks for any answers.
- Christopher
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