[mythtv-users] Upmixing with 0.25

[Karl Newman]

On Sat, May 19, 2012 at 9:34 PM, Jean-Yves Avenard <jyavenard at gmail.com> wrote:
> I'm not sure if this is due to your use of the a52 plugin (I have
> never used it myself)
>
> Myth expects the ALSA device to be blocking (which is the default ALSA
> behaviour) ; that is, it doesn't exit until is has finished processing
> the data passed on to it (e.g. it's been played)
>
> By the look of things, it seems that with yours, it isn't. So that
> throws off any A/V sync calculations performed. the player thinks that
> all audio has already been played, and is trying to make video catch
> up by dropping video frames.
>
> But honestly.. I'm not sure why you bother going that way. If you are
> using a digital output device, it's most likely that your amp have a
> HALL mode or something similar, where stereo audio will be played on
> all speakers.
>
> Just disable myth upmixer and let the amp do it.
>
> You'll achieve a better result and not waste your time.
>
> JY

If that were an option, I would have already done it and not even
bothered with the software setup. My amp is a very simple Cambridge
Soundworks 5.1 system with one coax SP/DIF input and no effects. I
can't justify the expense to upgrade right now. This setup worked for
about 4 or 5 years. It's only now that I'm having problems.

Karl