Never ever use Normalisation!

"Normalisation" sounds like it's doing a good thing, but in reality it should be called "Randomisation". Since the "Normalisation" command will use only the loudest peak in the recording to evaluate the level, the results will be just random. Just imagine a whisper sounding thousand times louder than a scream ;)

Using the "Normalise" function is a great disservice to anyone who is supposed to work with your recordings.