[solved] No sound -- but apps *pretend* to play...

No sound comes out of my speakers, but my apps (audacious, mplayer, aplay) pretend that they're playing (I get no warning/error messages)... even though nothing's coming out.
I have tried:
amixer set Master 90% unmute
amixer set PCM 85% unmute
as well as restarting alsa. I even tried reinstalling alsa-oss, alsa-utils, and alsa-lib. However, none of these steps helped.
Strangely enough, my sound was working... and it suddenly decided to die.
Any suggestions?
Thanks!
Edit: I can hear system beeps through the same speakers which no (other) sound is coming out of... Also, I've rebooted to make sure that no other program is hogging the sound card. I have also tried running mplayer as root to check to see if it's a permissions problem... but still, no sound...
Last edited by CaspianXI (2008-06-19 02:12:45)

Now that I think of it, I suspect that my sound card may have died... the problem arose suddenly without me upgrading or tweaking anything...
I'm currently using a shared Internet connection, where the router blocks large downloads... so I'll have to wait until the end of the week to download a live CD to see if my sound works...
Thanks for all the input, everyone .
I'll let y'all know the hopelessness of my hardware soon

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