Quantize audio question, different from Midi ?

I just am used to quantizing midi at will. : kinda experimenting until I get what I am looking for.
I have never messed with quantizing audio before. So I guess I need to experiment - then undo, then expieriment , then undo . with midi I could goof around with a loop adding 16th notes, then add % of swing and then apply straight 1/8 note quantize, all with out any undo needed.
But I mainly just wondered if this was a bug , or intented behaiver .
thx