Re: MOTU devices on Intel machines
Re: MOTU devices on Intel machines
- Subject: Re: MOTU devices on Intel machines
- From: Kurt Revis <email@hidden>
- Date: Sat, 28 Oct 2006 15:14:18 -0700
On Oct 28, 2006, at 6:23 AM, Christopher Ashworth wrote:
I have recently been receiving reports that my users are
encountering problems when using my application with MOTU devices
on Intel machines. In my attempts to track down what might be
going wrong, a variety of factors lead me to wonder if the MOTU
drivers are somehow involved.
Which device (or devices), exactly?
- My application allows sound designers to play back multiple
sounds during a show.
- Each sound is driven by an AUGraph, with an AUHAL audio unit for
the output.
Are you creating a separate AUHAL for each sound you play? If so,
why not just create one, put a stereo mixer AU in front of it, and
then play each sound through a separate input to the mixer?
My understanding is that the intended usage pattern is to use one
output AU and the mixer. You *can* create separate output AUs for
the same device in the same process, and it will work, but it
probably isn't as efficient. Odds are that the bug you're hitting
now would not happen if you used a mixer, since all the mixing would
be happening in your process, and the driver level would be
completely unaware of how many sounds you're playing at once.
--
Kurt Revis
email@hidden
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