[mythtv-users] mythmusic iec958 help
joehenley at kc.rr.com
Sat Jul 5 15:22:01 UTC 2008
From the posts above it doesn't look like it's going too well. I
continue to believe you will need to replace your sound card if you want
to get 44.1KHz signals into your receiver.
Have you checked the SoundBlaster site (or googled) for clarification on
what your specific card will do? Allen's comments above about
"sometimes spdif means upto 48KHz" is not 100%. Sometimes it's 48KHz
only; trust me, been there, done that. ... and paid the return shipping
for a limited capability card.
If your Soundblaster is not designed to output 44.1KHz via spdif, no
tweaking of alsa parameters, etc. will help.
If your particular SB model will support 44.1KHz, then remove .asoundrc
from /root , /home, and /etc, and anywhere else it resides. IIRC, you
have already removed PukeAudio, so from there you can start using
alsamixer to unmute the iec958 items.
The most common (from what I read on sites like this) successful MythTV
Audio output device = ALSA: spdif
Passthru output device = Default
Max audio channels = stereo (The 5.1 setting is currently broken. Use
"stereo" and you'll still get 5.1 sound out of the system.)
Upmix = passive
Enable AC3 to SPDIF passthru = check
Enable DTS to SPDIF passthru = check
Enable internal volume controls = check
Mixer device = default
Mixer controls = Master
What will work for you is probably very similar to this. If this
doesn't work first time, then check the wiki for ways to determine good
alternatives to "Audio output device = ALSA: spdif". This setting seems
to have several different incantations; and seems to be the one most
people have to change.
Good luch, you _will_ eventually succeed,
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