Re: the best Active *Noise* Reduction technology existing
- From: Rene Tschaggelar <none@xxxxxxxx>
- Date: Tue, 07 Mar 2006 09:08:25 +0100
mamadu@xxxxxxxxxxxxx wrote:
Hi,
I am trying to decide on an Active Noise Reduction (ANR) headset or
earplugs. I have looked at the Sony, Bose, Shure and other models, but
almost all reviews/comments mix two very different issues: noise
reduction and sound quality.
In my case, I have no interest whatsoever in sound quality, what I am
looking for is the absolute best noise reduction possible. I have
tried the Bose Quiet Comfort II, and they appear extremeny effective,
but only in the middle-low frequency range. Also, I have a feeling
that ANR earplugs might be more effective.
Various manufacters claims various degrees of noise reduction. As for
Bose, they do not even release their technical specs (although would it
not be possible for any lab to measure them across a frequency range
and publish the results?).
Recently I met a guy who was working in the US Navy on the deck of
aircraft carriers. He said that the headsets they had cancelled out
everything, that nothing could be heared at all when he was wearing
them. Since this hardly constitutes a secret technology, is it known
who designs these headsets for the US Navy? Is this technology used
for the civilian market by some manufacturer?
Can anyone give me some pointers as to how I could go about finding the
best ANR headset/earbuds out there?
Depending on what you try to attenuate, they may not
work as desired. While they are able to attenuate the
lower frequencies, they produce higher frequencies
that are making you more tired.
In smaller airplanes I feel better with switching
the active compensation off.
Rene
.
- Prev by Date: Re: about programming Atmel 89c51
- Next by Date: Re: Weak Magnetic Field Sensing
- Previous by thread: What is "CES, Local oscillator frequency extension"
- Next by thread: Low esr Caps.
- Index(es):
Relevant Pages
|
