Re: DefaultOutput puzzler
Re: DefaultOutput puzzler
- Subject: Re: DefaultOutput puzzler
- From: Robert Grant <email@hidden>
- Date: Fri, 1 Aug 2003 13:53:36 -0400
Jeff and Shaun,
Thanks for the info - that helps a lot - I didn't realize that the
DefaultOutputUnit had these smarts.
Is there a property or something I can check to warn users that this
fall back has happened? Would kAudioOutputUnitProperty_CurrentDevice
work?
They could get confused if they expect one thing and get another.
Thanks again,
Robert.
On Thursday, July 31, 2003, at 07:14 PM, Jeff Moore wrote:
The Mbox is the Digi USB box right? Digi allows their
single-client-only devices to be the various default devices. So, once
the System Sound Server in the LoginWindow process latches on to the
device, no other process will be able to use it. In this situation,
the Default Output Audio Unit in another process won't be able to
access the Mbox, so will fall back to the next available device in the
HAL's default device search path, which almost always is the built-in
hardware.
On Thursday, July 31, 2003, at 3:49 PM, Robert Grant wrote:
I've received a screenshot of the user's AMS Audio pane and he's
selected the MBox for input and both Default Output and System
Output. So how can the DefaultOutputUnit be going to his internal
speakers?
Thanks,
Robert.
On Thursday, July 31, 2003, at 08:22 AM, Robert Grant wrote:
I've got a ReVision user who's working on a laptop with an MBox
selected as his default output (in AMS). But ReVision (which uses
the DefaultOutputUnit) is coming out of his built-in speakers.
I went "Huh?" but I'd like a better answer if there is one?
Thanks,
Robert.
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--
Jeff Moore
Core Audio
Apple
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