I ve run fastrack on carpeting and it s queiter but to me carpet still lets the sound to escape from under the track.
Carpet noise fastrack.
One trick with fastrack is carpet with a medium high nap it fills the echo chamber base and really cuts down the noise.
To eliminate all noise look for a rating that is 75 or higher.
Homasote absorbs much of the sound that gets through the carpet padding.
Even after doing these things fastrack tends to be a bit louder than traditional track but it makes the noise tolerable.
Finally rather than putting fastrack right on top of a wooden table put a layer of homasote in between the track and the table.
50 to 65 percent reduction of noise.