Hello. We are having an issue with our Onyx Blackjack 2x2 USB Interface. We are recording directly into Audacity on a Mac using a USB 2.0 interface. After about 5 minutes of recording, the signal becomes distorted and continues to worsen from that point on. I have attached a sample audio file and waveform. If you look at the waveform, it's almost as if there is a ghosting effect on the waveform, and the audio is quickly repeated in a digitally distorted manner.
A session will start off normal, but after about 5 minutes it will drift into something like this.
We are recording at 48000Hz at 16 bit.
Thanks. I really appreciate any help. My guess is that it's a USB latency issue, but I could be way off.