[Elecraft] Noise Cancelling Headphones

[Charlie T, K3ICH]

I've never tried noise cancelling headphones, so my one question is, does 
anyone detect ANY effect to the desired audio?  In other words, any 
"Noise-Blanker"  effects or coloration of the audio?
I would suppose that, since they're designed for music, the noise cancelling 
function is transparent, right?

On the very few flights I've taken recently, I successfully used my old Sony 
MDR-7506's.  Maybe I don't know what I'm missing by NOT using a noise 
cancelling set.

73, Charlie k3ICH


----- Original Message ----- 
From: "Ron D'Eau Claire" <ron at cobi.biz>
To: <elecraft at mailman.qth.net>
Sent: Thursday, December 26, 2013 2:25 AM
Subject: Re: [Elecraft] Noise Cancelling Headphones


> True noise cancelling headphones will cut noise far, far beyond anything
> acoustic isolation from ear pads can accomplish.
>
> I have a pair of Audio-Technia QuierPoint ATH-ANC1. They are "on ear" 
> types
> so I didn't recommend them to the person asking for ones that cover the
> ears. They are very comfortable for me.
>
> When I fly, as the roar and whine of the big jet engines invades the 
> cabin,
> I just switch them on and all the racket becomes a quite background purr.
>
> I often wear them for the entire 11 hours from the west coast of the USA 
> to
> Europe, even if I'm not listening to any programs.
>
> The active circuitry in true noise-cancelling phones inverts the sound
> arriving and so actually cancels it out.
>
> The circuit takes a few seconds to adapt so when the attendant brings my
> drink she has no trouble waking me.
>
> 73 Ron AC7AC
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html