A method and apparatus for reducing the acoustic coupling between a sound
receiving transducer and a sound transmitting transducer is disclosed. A
housing, wherein the receiving transducer and the transmitting transducer
are mounted, is provided to increase the acoustic separation between the
receiving transducer and the transmitting transducer. The housing has a
surface, which may have an acoustic impedance condition, which is
preferably resistive. The housing may further act as a barrier structure
between the receiving transducer and the transmitting transducer.