Re: REFLECTOR: ANR Headsets

["David M Parrish" <dmp@radbsd.mcg.edu>]

From:           	HYTEC45@aol.com


>  jets as well as engine mounts) I've learned that wind noise, which is rich
>  in high frequency harmonics, is one of the biggest problems of the noise
>  environment.  >>
> 
> Sounds like you did your homework.  That must by why the D.C I converted for 
> Helicopter use didn't work.  It was flown in the worst condition, doors off.  
> And apparently I WAS hearing more metallic engine noises then with the 
> passive sets.  Hmmm, learn something every day.

ANR is designed to cancel relatively low frequency, repetitive noise, such as 
engine drone. How effective a headset is with high frequency noise depends 
on the headset construction, and more importantly, how well the ear seals 
work.

---
David Parrish