CEP & CME KITS

ACCES

ACCES stands for Attenuating Custom Communications Earpiece System. It is a modular system consisting of custom-molded earpieces combined with a communications cord with specialized electronics to deliver clear communications while ensuring hearing protection from damaging noise levels. The primary benefit of ACCES is it offers greatly improved speech intelligibility.

The primary benefit of ACCES® is it offers greatly improved speech intelligibility in noisy environments. Military aviation personnel are exposed to hazardous acoustic noise that degrades hearing and communications. The F-22, and legacy Air Force and Navy fighter aircraft, generate up to 150 decibels. Current hearing protection for aviation is inadequate. Personnel wearing current protection are often overexposed in seconds or minutes.

By integrating specialized electronics into custom-molded earpieces, ACCES® allows wearers to experience clear audio communications while protecting their ears from damaging noise common in aerospace environments. ACCES® provides an average of 30 dB noise reduction, while allowing clear communication in high-noise environments. Designed to interface with sophisticated communications systems, ACCES® earpieces provide the highest performance and most repeatable fit and seal of any hearing protection device. ACCES® has been approved as safe-to-fly in Air Force fighter, bomber, helicopter, and cargo aircraft

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Before You Purchase

Here at Evolution Helmets, we are committed to providing you with the best CME hearing protection kit possible. We will work with you to determine exactly what you want out of your kit. However, it is crucial to schedule an appointment with your hearing specialist before purchasing a kit from our team at Evolution Helmets. This is because you need to have deep ear molds made, as your kit needs to fit as snug as possible in order to work effectively. 

After you see your hearing specialist and have your deep ear molds made, contact our team here at Evolution Helmets today! 

Purpose of Hearing Kits

The widespread pilot use of ANR for aviation helmets is due to the enormous benefits of decreased helicopter pilot fatigue, increased situational perception. and hearing protection for aviation. Overcoming coordination problems related to a high-noise helicopter climate, and defense from double vision and two systems, were considered instances applied for CEP communications and active noise Reduction Headsets (ANR).

The CEP hearing protection consists of a small sound transducer coupled to an expandable, through ported foam earplug that is worn in combination with the standard flight helmet. The CEP’s main advantage is that it prevents unwanted sound from entering the ear canal from the outside of the helmet but permits communication signals to enter the ear without attenuation through the earplug. 

The ANR for aviation helmets is composed of electronic components that transduce, condition, and reverse the phase of the “residual” noise that penetrates the headset’s ear cups and then introduce this “antinoise” inside the ear cup space in a phase-inverted time relationship with the residual noise to affect its cancellation. This technology results in attenuated sound levels to the listener, more so for low-frequency signals than for high-frequency signals. This result is an advantage of ANR when it is combined with the typical flight helmet, because ANR compensates for the lack of low-frequency attenuation of the flight helmet. 

The CEP hearing protection has essentially become standard issue for aviators because this device has been shown to increase speech intelligibility, reduce noise hazards, be subjectively favored by pilots over ANR, meet crashworthiness evaluations, and be less expensive than ANR systems. In the past, ANR technology has not been practical for implementation in army aviation, primarily because of the weight of the systems, crashworthiness issues, and expense to the army. 

Advancements In ANR For Aviation Helmets

Recent technology developments have produced miniaturized ANR components for aviation helmets, including implementation in earplugs, as well as crashworthy earcup designs, suggesting that ANR may now be a viable alternative to CEPs for pilots. Furthermore, an aviator with high-frequency noise-induced hearing loss may benefit from the low-frequency attenuation characteristics of ANR that can reduce the amount of upward spread of ambient noise masking on speech.

Are you ready to purchase the best hearing kit on the market? Give the team here at Evolution Helmets a call today, or reach out to us through our contact form to learn more! To view more aviation gear and top quality flight suits, check out SE Flight Suits!