by cardigan » February 9th, 2006, 4:57 pm
You need a program to record sound with - that is a sound editor. I use Cool Edit Pro myself, but there are several programs out there which are shareware also.
Other than that you need experience in hypnosis :-) No, really. If you don't have a script, that you want to record exactly as it is written, you need experience in constructing the wording of the file. And you also need to practice a certain tone of voice on your recordings. Monotonous is definitely better than bright and cheerful :-)
But if you find some suitable software to do the recording with, just practice. And try the files on yourself to see if they work.
I wish you good luck!