GETTING SET UP • PODxt Pro — Configurations & Connections
3 • 13
AES/EBU or S/PDIF Data Format?
PODXT’s AES/EBU and S/PDIF digital outputs are both active at the same time, and
each have the electrical properties appropriate to their respective digital standards. The
ones-and-zeroes digital data that is transmitted in the AES/EBU and S/PDIF standard is
almost—but not exactly—the same.
Since both of POD
XT Pro’s physical digital outputs always sends the same data, we’ve
given you the
DIGOUT parameter to decide whether this data should be formatted
according to the AES/EBU standard, or the S/PDIF standard. In practice, many pieces
of equipment will accept either data format from either connector, but if you want to be
sure you are sending exactly the right format that you prefer, this parameter is for you:
Radiation Alert
You’ll probably find, especially if you are using a guitar with single coil pickups, that it
is quite easy to pick up some serious noise from any computer CRT (which stands for
cathode ray tube) display you might have in your studio. CRT displays are, after all, just
special purpose ray guns that shoot photons at you all day long. Your guitar pickups
receive and amplify the electro-magnetic fields that your display radiates, and you hear
this in your audio signal as buzz and hum. Moving farther from the CRT, and turning
your guitar so it does not directly face the computer’s display, will minimize this
problem. But if you find yourself in a tight studio setup, needing to lay down some quick
tracks, and being pestered by CRT-induced buzz, you may find it helpful to do as we
have sometimes done: set up your track to record and start your pre-roll; reach up and
flick your computer monitor’s power switch off; record your guitar part; stop your
recording, flick the monitor back on, and check out the buzz-free playback. Flatscreen
LCD monitors generally don’t cause hum and buzz. And just in case you’re looking for
an excuse to buy one... Line 6 Variax guitars are immune to this sort of radiation-
induced hum also, since it does not use traditional magnetic pickups.
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PODxt Manual Book RevC.book Page 13 Friday, August 29, 2003 5:43 PM
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