Static quality to audition audio

I've been recording an audio drama for the past week and as I've been reviewing the recordings I've found that some of the tracks have a strange sort of static quality to them, while others don't. These tracks were recorded in the same multitrack session with the same presets as the clean ones, yet they're unusable. Is there a way to fix this, or will I have to re-record?

I've attached an example to this thread.