Quicktime Audio stopped working

[liquidsense]

At some point between yesterday and today, the audio on my Quicktime audio just stopped working. I only have various .avi to test this out on. When I open the .avi file with mplayer of VLC, I get full audio, but it is muted for some reason on Quicktime.

I'm not sure what else I can do other than verify that the volume meter is definitely on and maxed on on Quicktime. Anybody know what could be causing this? I'm running OSX.

 

[liquidsense]

Can anyone offer any insight?

Since my last post, I updated QuickTime and restarted my computer. Of course, those things did not change the issue. I've researched online, but have not been able to find anything out there... Any ideas?

 

[greenjem]

Exact same problem!

I have add the exact problem for some time and I have no idea what went wrong. I love my mac and this is the only problem I've encountered since buying it.