Comment 10 for bug 11333

It would appear that you have two sound devices. One is an onboard sound device
on your motherboard, and the other is a USB headset. By creating a symlink, it
would seem that you are redirecting audio output to the headset. Is that what
you want?

I don't know why you don't have /dev/dsp; that makes no sense to me. What does:

ls -l /dev/dsp* /dev/snd

show?