Restarting speakers without rebooting? My MacBook Pro internal speaker has crashed, as it does every few months. I'm sure a reboot will fix it, but wondering if there's any way I could restore the speaker without rebooting? (Setting things back up again is time-consuming.)

UPDATE: It didn't actually work after reboot. I noticed the headphone slot is red, like in this picture, so it seems it's trying to serve optical out, since MBP uses the same slot as explained in that thread.

UPDATE 2: Best solution I've seen is here. https://discussions.apple.com/thread/4220803?start=0&amp;tstart=
Note that it's fiddly and you might need to reboot before re-trying the headphones.
Try restarting the daemon process that processes audio by typing in Terminal:

sudo killall coreaudiod


This should reinitialize the audio and perhaps reload drivers.