Big thank you to Bill , Bernie and Mordicus ,
Many thanks for your reply and advice .
This forum is certainly a fountain of knowledge !!
I'd heard about this type of software but thia is the first time i have actually tried to use it .
I downloaded a free version of Audacity it is very good in fact I'm impressed !! I'll play around with it for awhile and also try the other makes .
it's certainly user friendly .
I may even buy the full version to get the extra clarity .
But in any case it is very good .

Regards ...Giovanni