I just did a fresh install of Fedora Core 4. Everything is working great, except I get no sound out of Myth.<br>
<br>
I had a similar problem when I first installed my maudio sound card
under FC2. All "other" programs would produce sound out the
S/PDIF jack just fine, but Myth was mute. I thought I had finally
figured out what needed to go into my asound.conf file, to make Myth
happy. I have tried using that exact same asound.conf file under
FC4, but Myth is still silent.<br>
<br>
What is weird, is that mplayer works with the S/PDIF out perfectly,
even when a asound.conf file does not exist. All I have to do is
use "mplayer -ao alsa -ac hwac3" and it just works.<br>
<br>
Xine and aplay require the asound.conf file, however. For Xine and aplay, this asound.conf file is sufficient:<br>
<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<div id="mb_0">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
pcm.!default {<br>
type plug<br>
slave.pcm iec958<br>
}<br>
<br>
pcm.ice1712 {<br>
type hw<br>
card 0<br>
device 0<br>
}<br>
<br>
ctl.ice1712 {<br>
type hw<br>
card 0<br>
}<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
With the above asound.conf, I can play both AC3 and stereo material via the S/PDIF port using any program *except* Myth.<br>
<br>
Under FC2, I thought I had solved the problem by adding:<br>
<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
pcm.ice1712_spdif {<br>
type plug<br>
ttable.0.8 1 # S/PDIF left...Delta 9<br>
ttable.1.9 1 # S/PDIF right...Delta 10<br>
slave.pcm ice1712<br>
}<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
And then telling Myth to use "ALSA:ice1712_spdif". However, that
does not seem to be working under FC4. I end up with this in my
log:<br>
<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
2005-06-25 21:03:39.653 Using protocol version 17<br>
adding pes stream at pid 0x31 with type 2<br>
adding pes stream at pid 0x34 with type 129<br>
2005-06-25 21:03:42.696 libavformat type mpegts<br>
0: start_time: 4752.137 duration: 323.408<br>
1: start_time: 4752.094 duration: 323.407<br>
stream: start_time: 52801.048 duration: 3593.896 bitrate=15577 kb/s<br>
2005-06-25 21:03:43.472 Stream #1 (audio track #0) is an audio stream with 2 channels.<br>
2005-06-25 21:03:43.472 Auto-selecting AC3 audio track (stream #1).<br>
2005-06-25 21:03:43.472 Initializing audio parms from audio track #0.<br>
2005-06-25 21:03:43.603 Killing AudioOutputDSP<br>
2005-06-25 21:03:43.604 Opening audio device 'ice1712_spdif'.<br>
2005-06-25 21:03:43.612 in SetParameters(format=2, channels=2, rate=48000, buffer_time=500000, period_time=125000)<br>
2005-06-25 21:03:43.613 get_buffer_size returned 6553<br>
2005-06-25 21:03:43.613 set_period_time_near returned 68250<br>
2005-06-25 21:03:43.613 get_period_size returned 3276<br>
2005-06-25 21:03:43.621 Audio fragment size: 4096<br>
2005-06-25 21:03:43.623 Audio Stretch Factor: 1<br>
2005-06-25 21:03:43.623 Ending reconfigure<br>
2005-06-25 21:03:43.624 kickoffOutputAudioLoop: pid = 13790<br>
2005-06-25 21:03:43.624 OutputAudioLoop: Play Event<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
I am not even sure the problem has anything to do with the S/PDIF
port. Using the envy24control utility, I see that when Myth is
"playing", no audio is being generated on *any* of the soundcard's
jacks. When I use mplayer,xine or aplay, the envy24control
utility shows me that audio is being routed to the S/PDIF jack.
If I remove the asound.conf file, and use aplay, envy24control shows me
that the audio is being routed to the first two analog jacks.<br>
<br>
So, how do I debug this? How can I figure out why all other
programs will send sound to my audio card, but Myth is mute?
Since Myth is not generating any errors, I have no idea where to look.<br>
<br>
Thanks,<br><span class="sg">
<br>
John<br>
<br>
</span></div>