Update: Other Attempts that have not worked so far.
Adding an Audio effect to audio Layer
Making sure in Project Settings that the Audio Settings matched my wav file
It sounds as if you may be using AE 10 straight out of the box and have done no updating to it, a condition easily remedied by going Help>Update.
Hey Dave, I noted above I just ran the update and restarted about two hours ago, and still no luck.
I'm on version 10.0.1.19
I am quite sure you thought about it, but as a precaution:
You don't have the speaker icon checked in the preview panel and you hold down Ctrl while scrubbing?
(Sorry for mistakes, I'm German! )
Sorry, double posted it here...
Nachricht geändert durch Trunodat
Mute is not turned on and holding ctrl while scrubbing still does not produce audio.
OMG I found my problem.
Preferences > Audio Output Mapping
Changed Left and right from Digital Audio to Speakers 1&2 and I now can hear the audio. Horray!
Hopefully this helps someone else in the future.
Just wanted to say a huge thanks for this. I couldn't get audio preview/scrubbing to work at all and tried everything, then saw this post. I had to go to:
Preferences > Audio Hardware
and change it to Built-in Output and it worked again! I have headphones plugged into the front of my Mac Pro and speakers plugged into the back of the normal audio output, the headphones would not work until I changed this. I know I had it working before but I must have had my headphones plugged into the external speaker system.