If you select the imported .aiff file in the Project panel, then click the Play button in the Properties panel, do you hear it then?
What does the Properties panel show for the .aiff file's Duration, Sample Rate, and Channels?
If it still can't play, would it be possible to send a shared link to the file to me privately? We can then diagnose what might be happening. Thanks.
I have the same problem. I import a .WAV but i don't hear a sound. Not when i pres the play button or when i record.
If you open the Preferences dialog box for Character Animator, is the Default Output set to the expected device?
I'm assuming the .aiff/.wav file can play back in After Effects or Audition? If so, would it be possible to privately share a link to the file with us so that we can diagnose better what might be causing the issue?