Skipping Audio using AirPlay

There’s a slight skip within the audio with AirPlay. It’s not noticeable but annoying. I think it has something to do with the re-sampling rate. I’m using Pi MusicBox (here: woutervanwijk.nl/pimusicbox/) right now and the Airplay doesn’t skip at all.

IDK WHY! but it’s the only thing keeping me from using this as a main distro. I got a usb sound card from Adafruit here: adafruit.com/products/1475

Everything else works perfectly with sound. That’s the only thing that wrong that i can see.