What I mean is, if you've got a recording that gives no audio, and you try that same recording again, does it still give no audio? If that is the case, I'm going to get you to supply a sample recording.
I didn't realise that I needed to export my recordings before I reinstalled nextpvr so although my recordings are still in the recorded TV folder they don't show in nextpvr>recordings.
I'll continue recording TV until I find a recording with no audio & send that one to you