Click OK and the problem should be fixed. To do this simply click on the drop down box under Clock Source and choose Optical. But if you want multiple digital devices to play nice you’ll need to let this new lightpipe device be the clock source. Which makes sense, you’re clocking with your audio interface’s internal clock. This will open up a box that shows what your current clock source is selected as. Once your lightpipe device is connected and powered up, go to the Setup menu and choose Hardware Here’s the quick and dirty way to fix things in Pro Tools. This is the result of confusion on which device (your interface or lightpipe device) is acting as the clock source.

If you then go ahead and purchase one of these lightpipe devices, hook it up to your interface, and record enable your tracks you might notice some weird pops and clicks happening that are really annoying. This is, of course, assuming your audio interface comes with an Optical ADAT connection.

In Wednesday’s post we took a look at how one can easily expand your interfaces inputs with an ADAT enabled set of mic pres.

Pro tools not recognizing interface