Re: Controlling AUGraph playback repeats
Re: Controlling AUGraph playback repeats
- Subject: Re: Controlling AUGraph playback repeats
- From: Ron Fleckner <email@hidden>
- Date: Thu, 6 Jul 2006 14:11:18 +1000
On 06/07/2006, at 7:12 AM, William Stewart wrote:
On 02/07/2006, at 5:44 PM, Ron Fleckner wrote:
Hi,
just getting my toes wet with Core Audio. I have a very short
sound file (.09 of a second) which I'd like to play only once
through. It is played through an AUGraph with a mixer. I've used
the MatrixMixerTest example as a guide. I want to use a mixer
because I want the user to be able to adjust the volume. It works
OK and I can get metering to work, but because the sound file is
so short, it sounds like a jack-hammer. I'd like to be able to
set the graph to NOT repeat so that I can control when it plays.
I'm trying to create a metronome.
Then, I think you're using the wrong approach.
AUGraphStart/Stop can be a time consuming operation - particularly
if you are starting hardware.
For a metronome, you could implement this as an AU - then when it
doesn't have a click, you just have the AU output silence - so you
keep the graph running all the time.
Bill
Thanks so much for guidance. This is just the thing I need to know.
Now I'm off to actually learn c++ properly.
Ron Fleckner
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