Ok first off I am not an audio guy I'm more experienced with camera work and video editing. Recently I was doing a video shoot talking head style. Half way through the shoot the talent says to me "by the way I know you can't here it now but when you play back the recording you'll here I have a lisp". He told be that audio guys usually remove with some eq. Well low and behold he was right there is a lisp in the audio. I've tried searching the internet which has been little to no help and I've tried messing with audio filters in Final Cut (which I'm sure aren't the best). For audio I only have access to final cut and soundtrack and I suppose Garageband if thats of any help. If any one has any experience in this area I'd greatly appreciate it.