[mythtv-users] HD PVR no audio solution

[Ken Bass]

For over a year I have had recordings with no audio on my HD-PVR at
various random times. I am using the SPDIF output of my Comcast STB to
record.

I finally found a solution that works for me. Some people said that
adding delays to their channel changing scripts worked, but I already
had delays which did not fix this issue.

Here is my solution:

In my channel change script, before I change the channel I added the
following line:

/usr/bin/v4l2-ctl --device /dev/video-hdpvr1 --set-ctrl=audio_encoding=4

( of course change the device to your HD-PTR device)

This forces the use of the SPDIF output. I put this right before the
actual channel change and sleep:

/usr/local/bin/6200ch -g $GUID $1
/bin/sleep 4

I've been running this for 7 days now without a single recording that
was missing audio!!!

For me, this works regardless of whether the program is broadcast in
stereo or 5.1.