I may have just fallen off the proverbial turnip truck on this one, but until yesterday I had no idea it was possible to combine audio devices in OS X so that my recording software would see all of the various audio inputs as one device. Why is this useful? I’m using Propellerhead Record with an Apogee Duet and POD XT Live device. I used to just plug the XT Live into the Duet’s audio input — it turns out I don’t have to do that, I can record the audio from the XT Live directly. Here’s how:
Open up the Applications folder and the Utilities folder in there. Launch the Audio MIDI Setup program.
Click the + sign in the lower left corner. This creates a new Aggregate Device and you can select which devices to use on the right hand side. In the screen grab below you can see I have selected the Duet, XT Live, and Novation X-Station (three 2-channel devices for a total of six inputs)…

You can double-click and rename the Aggregate Device if you choose. Next, using Record as an example, launch your recording software and go to the audio preferences. Select your new device. Here I have renamed mine Duet+XSta+XTLive.

You can see there are 6 of 6 audio inputs active. You may need to select the Channels button and check off all of the audio inputs you want to use.

Now when you create a new audio track in Record, you will have six different input channels to choose from.

That’s it! No more plugging and unplugging! Hooray!











