Re: Sound Output Components for OS X???
Re: Sound Output Components for OS X???
- Subject: Re: Sound Output Components for OS X???
- From: Mark Coniglio <email@hidden>
- Date: Mon, 6 Jan 2003 16:51:08 -0500
Dear
On Saturday, January 4, 2003, at 06:49 AM, Mark Coniglio wrote:
Hi,
For my real-time video and audio app Isaodra. I've written an OS 9
Sound Output Component that talks to an ASIO handler within my app,
and routes the audio from a Sound Manager channel to any pair of
channels on an external, multi-channel interface. It works great on my
MOTU 828. So far so good...
But now, I'd like to pull off the same trick for OS X. My question is,
does OS X recognize a Sound Output Component? Where do I put it?
Yes sdevs are still supported, but the Sound Manager is not the way to
do what you are doing. It is not even the primary API for doing audio
on X. The right way is to just use the native multi-chanel APIs found
in Core Audio.
But if you insist, I would manually register and unregister your
component when your app launches and quits using the appropriate
Component Manager routines. I would keep your component in your app's
bundle in the Resources or Plug-Ins folder.
I understand that what I'm doing is a bit unorthodox. My ultimate
goal is to get the sound from multiple QuickTime movies playing on
different pairs of outputs on the 828 or other multi-channel output
device.
Though Apple folks on the QuickTime API list are hinting that there
will be a way to do this using CoreAudio the future, there doesn't
seem to be a way to get QT movie sound separated out without using a
sound output component.
Am I wrong? If there's a simpler way to do this I'd be happy to know it.
Thanks,
Mark
--
================================================================
Mark Coniglio, Artistic Co-Director | email@hidden
Troika Ranch Dance Theater |
http://www.troikaranch.org
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