[mythtv-users] Sound issues

Harry Devine lifter89 at comcast.net
Sat Aug 25 04:17:00 UTC 2007

I'm outputting the sound with both an analog speaker plugged in (just to test it), and an SPDIF optical cable running to my stereo.  If I use MythVideo to play a DVD that I ripped down, I can hear it fine on the analog, but nothing on the digital.  If I use MythMusic to play a music playlist of songs that I ripped down from a CD (which got ripped to OGG format), I don't hear anything.

Also, I recorded 5 minutes of a program on my local ABC, and I don't hear any audio.  I also don't hear any audio when I try and watch any TV program.  I can use xine to play an MP3 that I transferred over, but xine can't manually play one of the OGG files that I have ripped down.

I also setup my audio settings as you suggested (ALSA:default for both and unchecked both SPDIF options), and neither had any effect whatsoever.  I know that the sound works, just not all the time, and I can't seem to put my finger on the right combinations to make it all work all the time.

-------------- Original message -------------- 
From: "Jarett Creason" <nobleiceman at gmail.com> 
On 8/23/07, Harry Devine <lifter89 at comcast.net> wrote:
I created an asound.conf file from the example at http://www.mythtv.org/wiki/index.php/Configuring_Digital_Sound#How_do_I_do_this_in_Fedora_Core,  making sure that my device ID was changed for the digital portion (the IEC958) in the file, but things are still weird.  I can use aplay on a wav file from the command line, and I can run xine to play an mp3, but when I setup the settings in Myth according to the recommendations at that link, I still can't hear anything (the part talking about "Audio output device" about 3 paragraphs above the "Questions and Answers" heading).  I get nothing in both Analog and Digital. 

In Myth, under Utilities/Setup->General in the Audio section, I have my "Audio output device" set to ALSA:multi and the "Passthrough output device" set to ALSA:digital, according to the writeup.  I also have "Enable AC3 to SPDIF passthrough" and "Enable DTS to SPDIF passthrough" checked.  I hear nothing when I try to play a song out of MythMusic from a CD that I ripped down.  It's in ogg format if that matters.  That was the default format when it was ripped. 

Let me know what other information you need.  I'm still frustrated, but now I know that at least my onboard audio works, but I'm still missing a big piece of the puzzle.


How are you outputting the sound?  You said it's your onboard audio, is it outputted via a stereo plug(s), or it coax or digital?

Try setting the  "Audio output device" to "ALSA:default" and the same for the "Passthrough output device".   Then uncheck  both of the SPDIF options...  That's what I had to do at least.  

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