The herein described invention relates to an ear mounted, in-the-ear compound microphone system which simultaneously uses both an accelerometer, or vibration transducer, to sense bone conducted low speech frequencies and a microphone with controlled frequency response to sense airborne high speech f ...
A remote audio monitor for use with a telephone answering device connected to a common telephone line enables the screening of an incoming telephone call from a remote location with respect to the answering device. The remote audio monitor monitors the changing DC voltage levels of the telephone lin ...
