Going from MP3 to wav will result in a wav that sounds like the MP3. It won't "alterate" the sound. It won't make it better or worse. It'll be like trying to turn a turd back into food. You can put it on your plate, but it'll still be a turd.
I'll bet it's to rap over a mastered MP3 beat.
I think it is a G.W.Bushism Grim (we have a comedian/impressionist here, Rory Bremmner who used to "do" him hilariously including his "vocabulatory" foibles!) .What does "alterate" mean ?
He was pretty funny. His Tony Blair smile still grabs me !Rory Bremmner
I've been finding out so much about the quality of various MP3 kbps. Not even all of them at the same kbps are the same. Some 128s are pretty cool while others are crappy. Some 192s sound better than some 320s. And we won't even go into FLACs or Eggs !One point that is often overlooked is that no all "MP3" is the same. There is a spectrum of quality from the dire 128kBs to 320kBs which many say is often almost as good as the original .wav.
The greatest waste of time in all history though has to be 96 kbps and below. Anything put out at that kind of quality {ha ha, quality ?} is worthy of much violence or deportation.....
This ^^^^^^
But why would anyone want to do it???
Going from MP3 to wav will result in a wav that sounds like the MP3. It won't "alterate" the sound. It won't make it better or worse. It'll be like trying to turn a turd back into food. You can put it on your plate, but it'll still be a turd.