I've got a couple of Nolan N-103's with all their BlueTooth crap (and it is! BT is a big PITA imho.) and I've also found them noisy and heavy. Nice features like their buckle, internal tinted sun shield, and fit - but the noise, Egad!
I've got a Shoei Multi-Tec and it's much quieter and lighter than the Nolan's so I'm back to it with some in-ear phones.
You might want to look at their new X-12 as well. Not a flip-up, but it has a much larger shield face area and a lot more vents for the heat. It also has a couple of red quick release pulls under the cheek pads in case the EMT need to get it off you. It's around $600+ though and I have no knowledge of how quiet it is... yet. May pick one up this summer (I like their Motauk design) as I may need the extra vision the larger sheild offers for the sportbike S10000RR.
I've found the Arai to be a bit more noisy than the Shoei as well. Nice finish, but their shield mechanism is a bit stubborn, even fragile. I can change the Shoei shield with the thing on my head now.
Rule of thumb used to be Arai's for pointy heads. Shoei for round heads. Now they've mixed it up a bit.
Soon, you'll have a closet full of helmets. I laughed when someone told me he had 5. I think I've gone way past that now and I don't even want to know how many I've got.