[mythtv-users] Myth can't passthrough digital audio, but xine and mplayer can

[Jonathan Rogers]

On Jan 18, 2008 9:28 PM, Ray Lischner <linux at tempest-sw.com> wrote:
> On Wednesday 16 January 2008 12:25 am, Bill Williamson wrote:
>
> > What's set as your audio output?
>
> I've tried /dev/dsp and /dev/adsp as the audio device. I've tried
> Default and the other built-in choice for the pass-through device, as
> well as ALSA:hw=0,1 (because the digital device is 1 on card 0).
>
> The result is consistent. With pass through enabled, the receiver picks
> up the digital encoding, but no sound.
>
> With xine, I don't need to mess with anything. I just select Pass
> through for the audio, and it just works. So I'm still trying to figure
> out what's different.
>
> The "use video as timebase" option is unchecked.

The audio format in the recording is Dolby Digital (a52), right? I
assume it is if you're using an HDHomerun. The frontend log could be
very useful in diagnosing this problem. The easiest way to see it is
to start mythfrontend with the "-v all" and watch the messages in the
terminal.