I was asked from a client to repair an audio track from a recorded TV show (6 years ago).
you can listen to a snippet, here: http://bit.ly/Qkvs5n
I listened to it a i know, there is no chance to get this audio sounding good. self- sufficient i tried a bit in iZotopes RX2 to get something repaired, but in my eyes (ears) there´s no chance. The problem within this audiofiles is, that it doesn´t clip. There are some sort of massively distortions in the voice concerned the whole frequency range. And in my opinion, this file is, as it is.....
But i think more ears an minds think and know things different. so, maybe i´ve overseen something and you have a good idea to repair this stuff..