I’ve had similar problems with the audio on DVR recordings so I thought that I would jump in here.
RabbitEars.Info gives station info in your area. In the station listings it would have a green arrowhead in the space next to the state if it was a ATSC 3.0 station. 13.1 KCPQ is not a ATSC 3.0 station.
I have a temporary work-around that gets my audio back.
You can check it out here: Debugging lack of recorded or LiveTV Audio on a single station in my market - #17 by darganbright56
After completing this procedure I have full audio on Live TV and on DVR recordings.
Completing updates to the PMS, adding files, or deleting files will often bring back the no audio issue and I have to repeat the whole workaround process.
The whole audio issue seems to be timed along with the roll-out of the Descriptive audio track requirement that the FCC is making TV broadcasters implement. The FCC is still in the process of rolling it out in more markets and it seems that this may be somehow tied into the audio issues in Plex.
13.1 KCPQ transmits audio in DD5.1 and has a secondary audio track which is probably taged as English Descriptive or Spanish Descriptive. This would probably have been rolled out sometime this year.
I’m only seeing the issue with stations that are broadcasting more than one audio track.
