Better than elastique pro?

Only for “extreme” stretching. Very interesting example at the website,

http://hypermammut.sourceforge.net/paulstretch/

and also an example with an Ellie Goulding vid here:
utube etc.: aIj1XKm8Lqw .

Audio quality in these examples sounds incredible for such stretching/compressing (is that the opposite of stretching?)

And it’s free!