[mythtv-users] Mythtv audio mixer not working with USB audio output

jason bright jaybright at gmail.com
Sun Jan 25 05:40:24 UTC 2009


Greetings ---

I've been running my Myth box for almost 5 years now. Have always used the
motherboard audio output, but the quality just isn't there (lots of
scratching and buzzing, CPU noise, etc).

Upon a recommendation, i picked up a USB audio adapter.

http://www.newegg.com/Product/Product.aspx?Item=N82E16829128004&Tpk=ICUSBAUDIOB

Was plug-n-play in linux. Just turned off the motherboard audio in the bios,
plugged it in and rebooted.  Anybody using /dev/dsp outputs correctly. And
the output quality is waaaaay better than anything i ever got from the
onboard sound :)

The problem: the mixer in myth no longer has any effect, so i can't use the
volume controls within mythtv.

I've tried:
Audio Output Device:   /dev/dsp   or   ALSA:default
Mixer Device:   /dev/mixer    or    ALSA:deafult

No luck.  A bit stuck where to start looking. Suggestions most welcome :)

cheers - j
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