Re: How to make my AU graph the default output?
Re: How to make my AU graph the default output?
- Subject: Re: How to make my AU graph the default output?
- From: William Stewart <email@hidden>
- Date: Fri, 27 Mar 2009 20:02:26 -0700
You have to have all of your sound going through that graph.
So, you can't use QT - because it uses its only audio engine to output
audio, you can't use NSBeep as it uses a different mechanism, you
can't use the NSSpeech... guy on its own (you can use the augn speech
audio unit though)
There is no current way to capture all/any of the audio output of your
application
Bill
On Mar 26, 2009, at 11:48 PM, Ondřej Čada wrote:
Hello,
do please bear with my probably completely dumb question, but I
spend lotta time with the documentation and sample code without
being able to find the answer.
I've got an application which, among others, produces sound --
through lots and lots of services, from the old-fashionated NSBeep
through QTMovies playing to NSSpeechSynthesizer output. Now, I need
to process them all using CoreAudio.
I know how to create a graph of audio units which (probably, far as
I can say without testing) do exactly what I need with the audio.
I also know how to attach the graph to the desired output device
configuring its last node kAudioOutputUnitProperty_CurrentDevice
property.
What I can't solve though is how to make this graph to stand as the
"default output" of all the sound producing services of my
application instead of the default output device?
Thanks a big lot,
---
Ondra Čada
OCSoftware: email@hidden http://www.ocs.cz
private email@hidden http://www.ocs.cz/oc
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