No-hitters with no crowd

So some dude on the Cubs just threw a no-hitter in Milwaukee against the hugely disappointing Brewers today. I believe this is the 2nd no-no of the season, I think a Marlins pitcher threw one, or maybe a Braves pitcher, I forget.

The thing is, though, is that these guys are basically playing at mausoleums with piped in crowd noise, so I'm wondering if any of you feel that takes away a bit from the actual accomplishment.

I mean, this dude for the Cubs, would he have been able to maintain a no-hitter with a rabid Milwaukee crowd there? Would the crowd energy shake him enough to maybe lose his focus and give up a hit in the later innings?

As is with the ancient question of the tree falling in the forest, does a no-hitter make a sound when there's no one there? An interesting dilemma, and I'm wondering where you all stand on this.