Understanding How Aviation Headsets Reduce Noise

ing aviation headsets is a crucial step in protecting yourprotect hearing. In addition, there is an electronic signal
hearing and flying safely, especially in smaller aircraft.that "cancels out" incoming noise to provide noise
Some people simply choose by reputation, buyingreduction in the low-frequency range. The electronic
either a Telex headset or Peltor headset becausesignal is not an audible sound, but a frequency pulse
these are well-known brands popular in the aviationthat matches incoming sound as an opposite signal.
industry, but it isn't that simple.Quality ANR Peltor Headsets can provide up to 30
Both brands produce quality products, but they alsodecibels of noise reduction depending on the brand.
each offer a variety of headsets that work in differentDigital Noise Reduction — The most expensive
ways and may suit different needs. To choose theoption also gives you the most protection because it
right style and model of aviation headset, you need toadds a final level of protection beyond even ANR. In
first understand what the manufacturers are talkingthese, electronics monitor the actual surrounding
about when they describe how their products work.sounds and mimic them with opposing signals to cancel
Both Telex and Peltor headsets come in a wide rangethe noise. Telex headsets and most other quality
of styles that offer varying levels of hearing protection.brands also feature a filtering system that prevents
In fact, each offers different types of hearingcancellation of non-repeating noises so that the
protection as well. The three types are usually referredwearer will be aware of changes in engine sound that
to as Passive Noise Reduction, Active Noisecould signal an emergency. Digital noise reduction
Reduction and Digital Noise Reduction. Some peopleprovides the most protection in the mid-frequency
refer to noise reduction as "noise attenuation," but theranges.
terms are interchangeable.You should find out what decibel level of noise you are
Passive Noise Reduction — These aregoing to routinely be exposed to before shopping for
sometimes referred to as NNR headsets, and are theany kind of aviation headset. (Smaller aircraft generally
least expensive. They use insulation and thick paddingproduce more noise than larger craft, and any prop
to cut down on cockpit noise. The earphones areplane will be significantly louder in the cockpit than a jet
designed to create a tight seal around the ears. Withairplane) This will help guide you in your choice, since all
these, you'll receive about 25 decibels of noiseTelex headsets and Peltor headsets clearly indicate
reduction. Most of this will be high-frequency noise.the level of decibel protection provided.
Active Noise Reduction — Like NNR, activeYou will also want to consider the type of microphone
noise reduction (ANR) headsets use insulation toyou prefer, the fit of the ear cups and other factors.