Sometimes after working in After Effects for more than a couple hours, or on a large project, I get the error message: "After Effects warning: Unable to start audio playback. Please confirm your audio device is properly configured or change the driver selection in Preferences:Audio Hardware".
Everything is properly configured. First it starts out not being able to play audio on RAM previews, then it won't play audio on the rendered .movs, and after that no audio will work at all on the computer!
Is this some sort of memory issue?
I am using a 3d photoshop object (on draft resolution for now) in my .aep. Could this be part of the problem for some reason? I'm clueless as to why this is happening
I'm using CS4 and AIFF for audio. Everything goes back to normal after I restart the computer. But I'd still like to know what causes the problem.
I DID have OpenGL on, I will try turning it off for the rest of the day and see what happens.
I am having this same problem on my new mac pro running mavericks and CC AE. I had the exact setup going on my old mac pro for years... only running mountain lion there. Never a problem like this, and I have routinely used all sorts of different audio source files... wav, arc, mp3, aif, u name it. This is now a semi regular problem which began immediately upon switching to my new work setup. IMO, this is an issue with AE not playing nice w the OS system's audio routing systems ... Given the recent AE update w the notorious / inexcusable bug with the whole audio reverting to 8hz in the render settings...(which took nearly a month to be fixed w the most recent update) I find it pretty easy to believe that this is another code blunder on Adobe's part.
I find restarting After Effects seems to fix the problem. ...or sometimes even adjusting the levels of the audio in the timeline will shake it out of this bug...