I am observing regular gaps ("stutter" or "skipping) when recording audio over USB. The screenshot is of me making constant sound into the microphone while recording using Audacity, and the gaps are evident:
The gaps are constantly spaced, and happen almost always, although there were a few exceptions when the recording was uninterrupted. The hickups are short, but clearly disruptive to any reasonable recording, even just for voice calls.
I have tried two devices:
1) Jabra 510+ (using both wireless and wired connection)
2) SoundBlaster X-Fi Surround 5.1
Given that two very dissimilar USB devices presented the same problem, I have also tried plugging into USB2.0 ports, USB3.0 ports, turning off BT and WiFi while recording. I have also tried unplugging essentially all other USB devices. I have received the same results in each experiment.
As a baseline, I have tried using Audacity with the Jabra 510+ on another computer. Recording was flawless.
I'm kind of at a loss where to even start. My knowledge of USB stack is pretty much non-existent, but I'm happy to shotgun-debug with any ideas anyone might have -- module parameters, firmware versions, power saving options, etc.