Re: Simple test app?
Re: Simple test app?
- Subject: Re: Simple test app?
- From: Bill Stewart <email@hidden>
- Date: Tue, 27 May 2003 14:26:47 -0700
We've just revved the AUEffect base class to more completely deal with
N->M channel configurations - I posted the necessary code for this that
should go into the Initialize call of AUEffectBase last week...
There's some other things in AUEffect base that you have to deal with
from N->M effects (bypass and inplace processing) which the code
doesn't deal with yet, but we are going to be looking into that.
As for multi-channel/surround type effects - we will be talking about
some important revisions to the AU spec at WWDC this year that cover
this area...
Bill
On Tuesday, May 27, 2003, at 01:49 PM, Darrin Cardani wrote:
At 12:30 PM -0700 5/27/03, Bill Stewart wrote:
There's some things in the SDK that can help a great deal I think:
For a simple start see the SampleEffect project - that takes all the
DSP out of writing an AU and shows you basically how you need to
manage parameters and the overall class heirarchy from AUBase on..
This builds you a complete AU that does no processing... You can
build it and then use AudioUnitHosting and you'll see your AU show up
in that list
Thanks, finding AudioUnitHosting helped a lot.
In reading through the documentation, I notice that AUEffectBase's
docs say this:
This class supports effects processes with one input and output
stream where the number of input channels is equal to the number of
output channels.
I'm implementing 2 effects. One takes up to 8 input channels and
outputs 2 channels of audio. The other does the reverse. Should I be
looking at an AUEffect or should I be looking at something like a
mixer component instead?
Thanks,
Darrin
--
Darrin Cardani - email@hidden
President, Buena Software, Inc.
<http://www.buena.com/>
Video, Image and Audio Processing Development
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