User submitted bug:

Played the first prison story so far and there's noticeable short crackling at the end or between sound effects, especially ones using lower frequencies, as if some wrong data bits get played out as noise - don't know how to describe it in better detail, sorry (English isn't my mother language). You'll notice it when you hear it, I'm sure.

Steps:
Umm... just playing through the first story mission until it pops up every now and then and more frequently closer to the end.

We are currently investigating this issue

We've not found this issue and the cause. We're working on a fix and hope to have it in the upcoming Game Preview update in the following weeks.