OK.

So we start with a Shoei Multitec flip face in carbon fiber, of course. So I can put a bag of cherries on my lap and spit the seeds as I go. Carbon fiber cause we want it light. and cool. http://www.webbikeworld.com/r2/shoei/multitec/

Have it made with Bose noise cancelling headphones, so we hear only our music, unless we hit the switch. http://www.bose.com/controller?url=/shop...ort_2/index.jsp

It must have the Akuma Electrochromatic visor: http://webbikeworld.magnify.net/video/Akuma-Electrochromatic-Visor
and tail lights and map light of the Akuma Ghost rider: http://www.webbikeworld.com/r2/motorcycle-helmet/akuma-helmet/

No phone jacks please, who do we want to talk to?

The perfect helmet.

Now if I only had any gas money left I could go RIDE.

Both my Arai & Scorpion fullface helmets are much quieter with the face shield open. A poor sealing shield seems to be a major source of noise.

Some aviation-type passive (i.e. non-ANR) headsets provide excellent noise protection too. My relatively inexpensive Lightspeed headset, used in an ultralight aircraft (read: extremely loud) provides a comfortable level of quiet, better than any earplugs I've ever tried. It depends for its effectiveness on a good fit of the soft rubber seal around the ear. The technology would work great in a helmet if the problem of putting it off and on could be solved -- it needs to be spread apart to insert your head, then allowed to clamp back together for a good seal. I suspect this may be true of ANR headsets too. If someone could figure out a way to do that, we might have a breakthrough . . .

Lee
2002 1150RT

If we had a helmet that opened and closed like a clamshell... with the hinges on top of the head and well... you get the idea.

I have ear protectors in my shop that also have been used on the gun range. Effective but not very stylish. Maybe we could cut big holes in the helmet and wear the ear protectors over it...

I've often thought that the solution would be some kind of inflatable seal that you pump up with a small squeeze bulb and release with a twist valve. Think of a donut that surrounds your ear, attached one side to the helmet, that you could inflate to your desired pressure once your helmet is on.

Anyone have the tools and meterials to prototype one of these?

I believe the answer is in a modified helicopter/motocycle helmet.

Seems we need to isolate the ears from the BELL effect of our helmets with a small dome over the ear to allow for a foam enclosure to fit. Then speakers or earbuds should work.

I have a cheap one piece full face helmet, might experiment with grafting on some domes, maybe shooting protectors or something. Gonna be ugly tho.

That sounds like a great idea!

The key to the blowoff noise problem will be some way to 1) isolate the ear cavity from the vibration of the helmet shell, 2) provide enough damping in the helmet shell that it does not vibrate from turbulent air flow impacts, or 3) provide an active noise cancelling (ANR) system.

None are very technically straight forward since the wavelength the noise pressure wave is several feet yet the frequency is substantial.

Scorpion has a helmet model that is inflatable. I think it's the 1000 model.

as long as its a prototype why not try dimpling it like a golf ball. no? I'll lease you my nonexistant patent rights.