[mythtv-users] AC3 Sound - Myth TV picking the wrong stream?

[Ian Ward]

duckeo wrote:

>
> I'm based in Sydney Australia and with two of our channels, SBS and 
> Channel 7 Mythtv appears to be choosing the wrong audio stream.
>
> If I tune to these channels whilst on another channel, I get no audio 
> -- I have to press (+) or (-) to force myth to use another audio 
> stream, which then works.
>
> If I start up live TV on one of these channels, the audio works fine.
>
I had this same problem.  You select one of those channels, have no 
sound, exit watching TV and re-enter and you get sound.
I fixed it without realising whilst chasing another problem....

You may get sound dropping out half way through a recording.  There is a 
setting for the capture cards you need to change.

Exit mythfrontend, shutdown your backend.
Run mythtvsetup
Edit your capture cards, in "advanced settings" / "Recording Options" 
you can select "Record in TS format instead of PS"

TS mode I believe is the true format of the data as it comes off the wire
Discussions from developers suggest this will be the default in future 
releases.

This fixes the sound dropping out in recordings and most probably was 
the culprit of no sound in channel 7

Ian