Aggregate Device help

Hello,

I've taken the steps outline at http://www.apple.com/pro/techniques/aggregateaudio/ to set up an aggregate device consisting of my M-Audio Firewire 410 (4 in, 10 out) the Mac built-in audio in (2 in) and the Mac built-in audio out (2 out). I've checked several times and I've followed the steps exactly, as well as looked at past posts here to confirm.

When I go into Preferences --> Audio in LE 8, the aggregate device is not available to me in the device dropdown. Only my physical devices are there (ie: the 410 and the built-in I/O). For what it's worth, I also launched Garageband just to see it showed as an output option -- it did not.

Furthermore, when I relaunch Audio Midi detup to see what's going on, the agg device I had just set up is no longer there -- as if it didn't "save."

Any help is appreciated.

thanks

MacBook 2 GHz, 2 GB RAM, Mac OS X (10.4.11), LE 8, Firewire 410, Proteus 2000, U220, Roland TD-6, lots of black sox

Posted on Jan 20, 2008 7:02 PM

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9 replies

Jan 26, 2008 9:10 AM in response to mister coffee

Hi,
I have the same issue!
I'm trying to use Apogee Duet (1 stereo out) and built-in output (for dj'ing,to do cue mixing), but when I create the device(and I have followed the instructions that were in the link you posted), i fail to see it in the system preferences. And when I relauch audio midi setup the aggregated device is no longer there - 'as if it didn't save'.
Any ideas how solve this?

Jan 27, 2008 10:19 AM in response to mister coffee

This happens when you launch Audio MIDI Setup from a user account without root (admin) privileges. Why Audio MIDI Setup doesn't prompt you for an admin password, or why you'd even need one for this, I do not know (I assume it's an Apple SNAFU).

Solution: Unless you're familiar with using the sudo command in the Terminal, simply login as admin and launch the Audio MIDI Setup from there. Your settings will be remembered and applied for all users.

If you're already logged in as admin and it still won't work, my best bet would be damaged permissions -- launch the Disk Utility application and choose "Repair Disk Permissions."

//Daniel

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Aggregate Device help

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