[mythtv-users] Upmixing with 0.25

[Jean-Yves Avenard]

On 15 May 2012 14:25, Karl Newman <siliconfiend at gmail.com> wrote:
> I'm experiencing some problems trying to get audio upmixing working
> the way I want. First of all, kudos to whoever wrote the built-in
> upmixing code. I don't know how, but it seems to turn a simple stereo
> signal into some nice pseudo-surround effects, where all the dialog is
> through the front/center speaker(s), and music, laugh tracks, etc. is
> in the surround channels. Unfortunately this is not how I want it to
> work. I was hoping for a simpler upmixing where the front channels are
> simply cloned to the rear channels and shared in the center and LFE
> channels. That way I can use my rear speakers behind my head to hear
> better without having to crank up the volume. I have had this working
> perfectly since about version 0.17 using a custom asound.conf
> (system-wide asoundrc) with the route plugin and ttable into an A52
> encoder. The problem I'm encountering now is that using a custom
> asound.conf causes mythfrontend to freeze until the process is killed.
> The end of the log looks like this:

IMHO, you're better off asking the ALSA user list for this.

and you don't provide any useful log, in particular what is the error
that caused alsa to fail

you need to start mythfrontend with -v audio

JY