Patent ID: 8818009

Claim:
A dual diaphragm microphone transducer comprising: a housing; and a transducer assembly supported within the housing to accept acoustic waves, the transducer assembly comprising: a magnet assembly; a front diaphragm disposed adjacent the magnet assembly and having a front and rear surface, the front surface configured to have acoustic waves impinge thereon, the rear surface having a coil connected thereto such that the coil is capable of interacting with a magnetic field of the magnet assembly; and a rear diaphragm having a front and a rear surface, the rear surface opposingly disposed adjacent the magnet assembly with respect to the rear surface of the front diaphragm, the front surface configured to have acoustic waves impinge thereon; the transducer assembly defining an internal acoustic space; the housing having at least one air passage establishing acoustic communication between the internal acoustic space and a cavity within the housing, wherein the cavity is situated adjacent to the front surface of the rear diaphragm.