linux music tools It is quite possible and was done all the time in the bad

[Hart Larry]

OK Janina, as far as normalizing, please consider "mp3gain" which you alter 
levels of an mp3, but in most cases there are no equivalant programs to change 
audio levels in an mp4 or many other video formats. And as far as an mp3editor, 
well Chuck's edway is a converter, but there was another one which had these 
ellavators, did not seem to be something where I could just arrow through 
sound-and-turn on-and-off blocks as you would in a word processor Thanks for 
inquiring
Hart