Canine InEar Hearing Protection

In this direct to Phase II effort, Hearing Components will develop and deliver twelve functional prototypes of a Canine Active Hearing Protection System. This in/ear system will protect multipurpose canines (MPCs) from damaging low/frequency noises while still providing them with situational awareness and the ability to localize sounds as well as receive communication from a handler. The system will include automatic gain control and automatic noise cancellation so loud noises and impact noises are only reproduced at safe sound pressure levels. The system is comprised of a pair of passive attenuating eartips coupled to electronic active hearing protection earpieces and control box which can be fitted to the canine’s collar, vest, helm, etc. The system will be designed and manufactured to operate in all environmental conditions. The eartip will be designed such that it enters the horizontal canal and fills the vertical ear canal with the earpiece positioned at the entrance to the vertical ear canal. This will allow the canine to maintain natural ear movement and maximize reception and localization of sound with the hear/through function. Eartip design and materials along with retention features incorporated on the earpiece shell will hold the system in place. Anticipated Benefits/