| 摘要 |
An earpiece has a structural configuration effective to removably interlock its outer surface contiguously to the outer ear auricle of the earpiece wearer. A microphone substantially exclusively receives, from the air of the external auditory canal, outbound voice sounds caused by the reverse modulation of the tympanic membrane when the earpiece wearer speaks. An outbound audio circuit is electrically connected to the microphone which converts the outbound voice sounds to electrical voice signals. The outbound audio circuit amplifies the outbound electrical voice signals to a preselected fixed level output gain and removes noise from the voice signals. Specific features of the invention are directed to a two-way communication system, the structure of a speaker/microphone module, the structural configuration of an earpiece assembly, specific control circuitry, and a particular assembly for conducting a method of communicating voice sounds substantially exclusively from the air of the external auditory canal while substantially eliminating audio vibration pickup of sound signals by bone conduction. The voice transmission system and method effect intelligible voice communication in an environment having ambient noise at a level greater than 90 decibels. |
