If my 670 didn't crash with the DXGI error every 15 min I wouldn't upgrade anything till 2016. I underclocked my card and that helped a bit. I was told to then turn off Physx on the video card and that should help too.
Started a google drive shared folder. Adding in some audio files with different inflections. raw wav files.
https://drive.google.com/folderview?id=0B1AqXA1nwxwwcjZfeXVGZXpDMFE&usp=sharing