What is the video/audio codec that the screen capture program is recording as, .mp4's and .mt2s doesn't let me know what's actually inside the file. You can check this using a free program called
"media info". Which you can download for free here
Alright this is what the program said
Container and general information
MPEG-TS 2.17 GiB, 22mn 5s Maximum Overall bit rate: 18.0 Mbps
1 Video stream: AVC
1 Audio steam: AC-3
First video stream
13.0Mbps, 1280*720 (16:9) at 59.940 fps, AVC (Main@L4.0) (CABAC / 4 Ref Frames)
First audio stream
384 Kbps, 48.0KHz, 16 bits, 2 channels, AC-3
Something is going on here because cs6 supports AC3 audio. Can you upload a small test file to yousendit or some other share site, so I can see if it has audio on my system.
I'm thinking something might have gone wrong with your install process. Although please try doing this although this is supposed to only apply to AVCHD media it can't hurt to try.
This solution was originally posted in another thread by a adobe employee, and even though he was talking about AVCHD media it's worth a shot IMO.
1) Quit Premiere. Launch Premiere again. Go to the Help menu and verify that you are activated (towards bottom, should see "Deactivate..." that signifies that you are activated).
2) Go to Preferences > Media > Media Cache Database. Click the "Clean" button. Import your file(s) again and see if you get audio now.
3) If 1 and 2 do not work, then could you please try to uninstall and then install Premiere Pro again.