Within the past week I have started having problems where my audio will be outputting fine in Premiere Pro but the next day it won't. rebooting my iMac seemed to work but not even that isn't working. I tried trashing the preferences but that did not work either. I have audio from all other sources on the computer but not Premiere Pro. Would anyone have any other ideas?
What version of Premiere Pro?
Try toggling the Solo button a couple of times.
Sorry for the issue. Did Meg the Dog's advice help you? If not, after pressing the mute and solo buttons, save, close, then reopen Premiere Pro. Is it working then? Please let us know.