[mythtv-users] MythTV sound through SPDIF
Ludmil Miltchev
ludmilmm at gmail.com
Mon Jun 4 18:59:58 UTC 2007
Eric Smith wrote:
> Ludmil,
> There should be a seperate setting for MythMusic which you can also
> set to ALSA:iec958 I believe.
>
> On 6/4/07, *Ludmil Miltchev* < ludmilmm at gmail.com
> <mailto:ludmilmm at gmail.com>> wrote:
>
> Eric Smith wrote:
>
> > On 6/4/07, *Ludmil Miltchev* < ludmilmm at gmail.com
> <mailto:ludmilmm at gmail.com>
> > <mailto:ludmilmm at gmail.com <mailto:ludmilmm at gmail.com>>> wrote:
> >
> > Hi to everyone!
> >
> > My MythTV used to work flawlessly with a stereo analog sound
> (2ch). I
> > decided to switch to SPDIF and now when I try to watch TV,
> DVDs or
> > listen to music (using the Internal player) I don't get any
> sound.
> > However, I can watch videos (using MPlayer) without any
> problem.
> >
> >
> ===================================================================================
> >
> > I tried fixing the problem, using the following articles:
> >
> > - Configuring Digital Sound with AC3 and SPDIF
> >
> <http://www.mythtv.org/wiki/index.php/Configuring_Digital_Sound_with_AC3_and_SPDIF
> > <
> http://www.mythtv.org/wiki/index.php/Configuring_Digital_Sound_with_AC3_and_SPDIF>>
> >
> > - I get no sound from MythTV when watching TV but MythMusic and
> > command-line test all work fine. What is the problem?
> >
> > <
> >
> http://www.mythtv.org/wiki/index.php/Configuring_Digital_Sound#I_get_no_sound_from_MythTV_when_watching_TV_but_MythMusic_and_command
> <http://www.mythtv.org/wiki/index.php/Configuring_Digital_Sound#I_get_no_sound_from_MythTV_when_watching_TV_but_MythMusic_and_command>
> >
> > -line_test_all_work_fine.__What_is_the_problem.3F>
> >
> > - But I want to have all my sound go to the S/PDIF
> connector, how
> > do I
> > do that?
> >
> > <
> http://www.mythtv.org/wiki/index.php/Configuring_Digital_Sound#But_I_want_to_have_all_my_sound_go_to_the_S.2FPDIF_connector.2C_how_do_I
> <http://www.mythtv.org/wiki/index.php/Configuring_Digital_Sound#But_I_want_to_have_all_my_sound_go_to_the_S.2FPDIF_connector.2C_how_do_I>
> >
> <http://www.mythtv.org/wiki/index.php/Configuring_Digital_Sound#But_I_want_to_have_all_my_sound_go_to_the_S.2FPDIF_connector.2C_how_do_I
> <http://www.mythtv.org/wiki/index.php/Configuring_Digital_Sound#But_I_want_to_have_all_my_sound_go_to_the_S.2FPDIF_connector.2C_how_do_I>>
> >
> > _do_that.3F>
> >
> >
> =======================================================================================
> >
> > When I run: #> aplay -L, I get:
> >
> > {
> > cards 'cards.pcm'
> > front 'cards.pcm.front '
> > rear 'cards.pcm.rear'
> > center_lfe 'cards.pcm.center_lfe'
> > side 'cards.pcm.side'
> > surround40 'cards.pcm.surround40'
> > surround41 'cards.pcm.surround41'
> > surround50 ' cards.pcm.surround50'
> > surround51 'cards.pcm.surround51'
> > surround71 'cards.pcm.surround71'
> > iec958 'cards.pcm.iec958'
> > spdif 'cards.pcm.iec958'
> > modem 'cards.pcm.modem'
> > phoneline 'cards.pcm.phoneline '
> > dmix 'cards.pcm.dmix'
> > default {
> > type hw
> > card 0
> > device 2
> > }
> >
> > My /home/mythtv/.asoundrc file:
> >
> > pcm.!default {
> > type hw
> > card 0
> > device 2
> > }
> >
> > My /etc/asound.conf file:
> >
> > pcm.!default {
> > type plug
> > slave {
> > pcm "spdif"
> > rate 48000
> > format S16_LE
> > }
> > }
> >
> > I added "options snd-pcm-oss dsp_map=2" at the end of my
> > /etc/modprobe.conf file.
> >
> > In my frontend (Utilities/Setup - Setup - General) I have:
> >
> > Audio Output Device: /dev/adsp
> > Passthrough output Device: ALSA:default
> > Mixer Device: default
> > Mixer Controls: PCM
> >
> > I also tried checkihg and unchecking the boxes next to:
> > Enable AC3 to SPDIF passthrough
> > Enable DTS to SPDIF passthrough
> >
> >
> ======================================================================================
>
> >
> >
> > So far, I haven't been able to get the sound to work with
> watching TV,
> > DVD or listening to music in MythTV. I tried getting a help
> from a
> > friend who knows a lot more than me about Linux and MythTV
> (I am a
> > newby), but he was not able to help me, either.
> >
> > I am running MythTV ver. 0.2 on Suse 10. My sound card is:
> ALi M5455
> > with spdif-out (6ch).
> >
> > I would really appreciate any help (hints, articles, ideas,
> etc.)
> >
> > Please, let me know if you need any more info about my
> > system/configuration.
> >
> > Thank you!
> >
> > Ludmil
> >
> >
> >
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org <mailto:mythtv-users at mythtv.org>
> <mailto:mythtv-users at mythtv.org <mailto:mythtv-users at mythtv.org>>
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
> >
> >
> > I found all the asound config to be unnecessary. What ended up
> > working for me was, make sure ac3 and dts passthrough are both
> > enabled. And then change both the audio and passthrough output
> > devices to be ALSA:iec958. That's all I needed, hopefully it will
> > work for you as well.
> >
> >
> >
> >------------------------------------------------------------------------
>
> >
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> >
> >
> Hi Eric!
> Thank you for your advice! It did work for playing TV and DVDs. I
> still
> can't play music through MythTV (and I used to play it with 2ch
> analog
> audio cable). Did you have any issues with playing music?
> Thanks!
> Ludmil
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>
I already set my Myth Music with "ALSA:iec958" but still it is not
working. I hope to figure it out soon. Thanks!
Ludmil
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