Ambient Acoustic Noise Cancelling for Military Boom Microphones

Communication systems in military aviation must contend with high noise environments, and clear communications require that noise is eliminated before reaching a listenerís ear. The main components of noise transferal are the listenerís environmental acoustic noise physically reaching the ear, and the other is noise picked up on a talkerís microphone that is then sent through the communication system to and played in a listenerís ear via a loudspeaker.Ý For clear multi-way communications, environmental noise must be removed at all listenersí ears, and noise must be mitigated at all talkersí microphones before insertion into the communication channel while preserving the intelligibility.ÝIn this work, Triton Systems, Inc. will provide a system to prevent ambient noise from entering the communication line as well as improving intelligibility in the challenging high noise environments of military aviation boom microphone usage.