Aphex USB 500 Rack - Manual (Page 4)

PreSonus Studio One
Create a New Song.
Under Styles, select Empty Song.
Select Sample Rate and Resolution and click OK.
Click Studio One-Preferences. Then select Audio Setup.
Click the Audio Device drop down list and select Aphex USB 500 RACK.
Set Device Block Size to 64 samples and click OK.
Click Track-Add Audio Track (mono).
In Track 1 click the Record Input tab currently labeled None and select Audio I/O
Setup.
Under Inputs click the add (mono) tab and click Apply then click OK.
In Track 1 click the Record Input tab currently labeled None and select Input 1.
Click on the Speaker icon to monitor the recording.
Click the red circle (Track Arm) on your track.
You should now see signal on the input and output meters and hear yourself in
the USB 500 Rack headphones or speakers.
Harrison Mixbus
Launch Mixbus and the Session Control window will open.
Select the Audio Setup tab.
Under Device set Driver to Core Audio, set Interface to USB 500 RACK, select a
sample rate and set the Buffer Size to 64 (If you hear pops and clicks in your
audio, come back and set the I/O Buffer Size to 128. Set this as low as possible
without hearing pops and clicks.)
Then click on the new session tab, name the file and give it a folder location.
Click New.
Click Track-Add Track/Bus.
Leave the default settings and click Add.
Click the red circle (Track Arm) on your track.