I closed, cleared the cache, opened Premiere again, this time holding down Alt while doing so to reset the preferences. When I first tried opening a Premiere project, the audio refused to play (speakers, headphones, everything.I looked at the volume mixer while playing through the timeline and no audio was showing up). I recently installed a GeForce GTX 1070 videocard and current drivers into my editing rig, excited for the potential leap in rendering and playback (I was previously using a very old ASUS Radeon HD 7850).
