I've submitted this as a bug to Adobe already, and seen another post on the subject here, but without a fix?
In AE CS5 on OSX, if I set the Audio Hardware pref to System Default (so we just follow the OSX system audio output device), we'll often get a hang followed by an error - can't start audio playback.
I wind up having to set the audio output device directly in AE Prefs. That seems to work fine. So if I've got SPEAKER 1 selected in the system prefs, and I choose System Default in AE, it won't work. When I then select SPEAKER 1 directly in AE, it works.
Seems like a bug, but I reported in April and heard nothing from 'em.
Anyone have any ideas?
You probably already know, but this is STILL a bug in CC2014. Pretty poor, but not surprising.
If the OSX you speak of is Yosemite, you should be overjoyed that AE CS5 works AT ALL. It isn't supported on that OS.