After much hair pulling and Googling, here's what I've found to work for playing back tracks from a USB stick on an X32 board. Most of what was tripping me up was getting the file type and settings correct.
- Check your X32 board. Most are defaulted to running at 48kHz, although you can set it to run at 44.1kHz (click your setup button and on the first tab, you should see an option called Sample Rate, just make note of it's current setting, do NOT change it)
- Take your source media (mp3, m4a, whatever) and convert them to 48kHz, 16bit uncompressed WAV files. (unless your sample rate is 44.1k, then do a 44.1kHz, 16 bit uncompressed wav) NOTE: Some programs ask if you want to add BWF information, or add markers and other metadata, UNSELECT these options!
- Programs that work well for this include Reaper, Adobe Audition, and Audacity, and others)
- Make sure you have a pretty fast USB 2 or USB 3 USB stick to put the media on.
- Put USB stick in X32 and hit the view button under the USB port
- Choose your files and hit play.
- On the channel selector part of the board, choose the "AUX In 1-6 USB Rec" button and ... slowly... bring up the fader.