Anyone starting a Kickstart project for a better system can have my money.
Anyone starting a Kickstart project for a better system can have my money.
No need to reinvent the wheel: http://www.amazon.com/dp/B00009LI4K
"you cannot hear what anyone is saying unless they shout, and even then, it is difficult to understand them." http://www.amazon.com/review/R20X9DNAJC9ZX3/
"I use to study while my 2 year old screams her head off (as long as someone else is watching her of course!)." http://www.amazon.com/review/R29TUUYEQY98W9/
"I use them while doing research in a library. It's unbroken silence despite screaming kids and adults talking into their cellphones. People no longer understand proper behavior in a library, but I don't care. I can't hear them. It's wonderful." http://www.amazon.com/review/RQBNEZ9CX3O19/
[1]: https://itunes.apple.com/us/app/chill/id421696351?mt=12
The pair I have are effective enough at cutting out most noise that they're basically earplugs even with no music on and I can wear them for entire trans-atlantic/pacific flights.
Where I am (Australia) OH&S regulations say workplace noise louder than 85dB averaged over 8hrs requires the employer to provide hearing protection[2]. The cabin of a 747 in flight is often louder than that, and for me it's usually a 13 or 14hr flight, so not using some form of hearing protection is almost certainly doing damage. But the best reason to wear protection is that I get off at the end of a 12+hr flight much more relaxed than when I don't have earplugs.
[1] big "DJ style" headphones with the cushions that surround/seal around the entire ear. [2] I've heard, but never seen any actual evidence, that airlines operating in Australia have negotiated exemptions from the standard OH&S rules which would require cabin staff to fly wearing hearing protection.