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The noise was sucked out of my ears. It
seemed like someone had vacuumed every little vibration out
of the space I was sitting in.
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technofile
Al Fasoldt's reviews and
commentaries, continuously available online since
1983
T e c h n o f i l e
Plane Quiet noise-canceling headphones close off the
outside world
Sept. 7, 2003
By Al Fasoldt
Copyright © 2003, Al Fasoldt
Copyright © 2003, The Post-Standard
Modern life can be unkind to the music
lovers among us. Finding a quiet place to listen is often
impossible. One solution is to turn the problem inside out,
creating a force field around your ears that cancels the
noise trying to reach you.
Sound like science fiction? Hardly.
Noise-canceling devices have proven themselves for decades,
but the technology was too expensive for consumer equipment
until recently. Now, thanks to the reduced cost of advanced
processor chips on which such devices are based, affordable
noise-canceling headphones are here to stay.
The "force field" in a
noise-canceling device is the sound of the noise itself
turned inside out. The sound is picked up by microphones on
the outside of each earpiece of a headset and then put
through a phase-reversal process in which sound waves
emanating in one direction run smack up against
cancellation waves heading in the other direction. (You
know the old saying about an irresistible force meeting an
immovable object? That's just what happens in the
noise-canceling headset. These two sonic forces cancel each
other out.)
I had never even tried a noise-canceling
headset until a few months ago. The idea just didn't
seem worth pursuing. After all, my regular studio
headphones, the kind that broadcasters often use, had done
all the noise-elimination I'd ever wanted.
Right?
Remind me to ratchet up my humility
quotient a little. I knew I was wrong the minute I put on a
noise-canceling headset from Outside The Box, a company
that specializes in unusual devices for travelers. The
headset is called Plane Quiet, a pun suggesting an obvious
use on noisy airplanes. It even comes with a dual-connector
plug so you can use the Plane Quiet instead of those
chintzy airline headsets.
The Plane Quiet uses a single AA battery
and has a convenient ON/OFF switch. The headset costs $80
if you buy it directly from www.planequiet.com.
Getting acquainted with the
noise-canceling headphones was an experience I'll never
forget. The headset wasn't plugged in when I put it on,
so I didn't expect to hear any music, of course. But
what I heard was nothing at all.
This may be hard to believe if
you've never tried a noise-canceling device. The noise
was sucked out of my ears. It seemed like someone had
vacuumed every little vibration out of the space I was
sitting in.
Up until that moment, I had thought of
noise-canceling headphones as things you use to listen to
music in a noisy environment. But I had been transported
into a sound-proof vault. I had a protective shield around
my ears. No music was involved.
Imp that I am, I clamped down the
headset as tightly as I could so that it couldn't come
loose, tucked the dangling connecting cord in my pocket and
ran out to the barn and started up the tractor. For the
next hour I mowed the lawn amid a peaceful hum instead of a
raucous clatter. Some of the tractor noise was still there
-- you get about 30 decibels of noise reduction with these
headsets, which engineers count as a major drop in sound
level -- but I heard none of the annoying chug-a-mug
clanging of my mower. Everything was nicely muffled.
I was a believer.
Later, after the new wore off, I started
using the Plane Quiet headset for its primary purpose,
listening to music. In a way, I was even more surprised
than I was when I used it just for noise elimination.
I hadn't considered our computer
room, where I do most of my listening, a noisy place. But
every time I sat back with Vivaldi or the Stones, I heard
details in the music I had missed before. And each time I
took off the Plane Quiet headset after a long listening
session, I felt jolted by the rush of noise in the
room.
How do they sound? They're good but
not ultra-fi. They're not as faithful to the lowest
bass notes as my studio headphones and don't quite have
the same sparkle in the high treble, but I found the sound
smooth and pleasant. The battery never seems to run out of
power (I've had to replace mine only once), and the
headphone cups are well shaped and comfortable.
The only criticism I have concerns the
length of the connecting cable. It needs to be longer. I
added an extension cable from Radio Shack.
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