[mythtv-users] MythMusic - CD Playback - Not working

[Allen Edwards]

On Mon, Aug 18, 2008 at 5:35 AM, Ray Whiteman
<ray.whiteman at consultant.com> wrote:
> Hello,
>
> I run Mythbuntu 7.10 with Mythtv 0.21. I am having difficulty with what
> I think is an ALSA/Mythtv audio set-up problem.
>
> I have Myth set-up and working perfectly for TV, MP3 Music, MPlayer
> Playback (SPDIF pass through working for everything)
>
> When I go into Media Library>Listen to Music>Edit Playlist and select my
> CD that is in the CD drive. I see the songs on the CD are all listed in
> the playlist (cddb lookup worked), with the first highlighted yellow.
> But I don't hear any sound and the CD drive isn't spinning.
>
> I can play the CD perfectly from VLC though!
>
> This is driving me nuts as the Wife Approval Factor is dropping (she
> wants to be able to drop a disk in and have mythtv "just play it").
>
> I have tried many combinations of audio settings in set-up > General
> some give me results that work in Mplayer,  DVD and TV etc, but not in
> the "playback from CD" area.
>
> I am running a pretty basic Setup > General audio setup
>
> Audio output device:     /dev/dsp
> Passthrough Output Device:    default
> Enable AC3 to SPDIF passthrough: Checked
> Enable DTS to SPDIF passthrough: Checked
> Aggressive sound card buffering: Off
> Use Internal Volume Controls: Off
>
> I have an .asoundrc that looks like this.
>
> pcm.!default {
>        type plug
>        slave {
>                rate 48000
>                pcm "spdif"
>        }
> }
>
> Any tips? I suspect I have a sound configuration that requires further
> tuning, I just need a bump in the right direction......
>
> Any help appreciated.

Try this:
delete or rename .asoundrc
delete or rename alsa.conf
Audio output device:  ALSA:spdif
Passthrough output devide: ALSA:iec958:(AESO 0x02)
max Audio channels Stereo (5.1 is broken, you will still get 5.1 if
you check stereo)
Upmix: Passive
Enable AC3 to SPDIF passthrough: Checked
Enable DTS to SPDIF passthrough: Checked
Aggressive sound card buffering: Off
Use Internal Volume Controls: Off

I don't seem to have an option to play CD so I cannot test it but this
setup works for everything else.

Note: There is a very knowledgeable poster who may have a secret ASLS
setup that works, but I have not found one and this setup has worked
for several others who have had trouble.  We are hoping he posts his
setup but until then, try this one.

This works with Mythbuntu 8.04 and I think with 7.10 also. The issue
is you want a version that has default alsa configurations so that you
can safely delete the config files.

Aparently the wiki is not intended to document passthrough, btw.

Allen