Headset microphone
A headset assembly often includes a receiver coupled to a user's ear and a microphone assembly disposed near the user's mouth. A headset is typically an electromagnetic or piezoelectric device that responds to the current or voltage on the conductive wire, and vibrates in response to the audio signal to reproduce the audible communication. The headset typically connects electrically to the electrical equipment through a conductive wire. An audio signal that is an electrical representation of the audible communications travels from the electrical equipment to the headset through the conductive wire. The microphone is generally provided having a body made of metal disposed in a molded, plastic microphone housing which is secured to a first end of a boom. A second end of the boom is connected to the receiver. Thus, the boom physically connects and supports the microphone and the receiver. The microphone also typically connects electrically to the electrical equipment through a coaxial cable, such as a twisted pair or shielded conductors. The microphone is typically a piezoelectric or ribbon magnetic device that responds to the audible communications from the user, and converts the audible communications into an audio signal that is an electrical representation of the audible communications. The audio signal travels from the microphone to the electrical equipment through another coaxial cable. To provide the microphone assembly with an acceptable acoustic response, an acoustic foam is disposed on an inside surface of the microphone housing and the microphone is disposed in the housing and the acoustic foam is placed at least on one side thereof. Communication headsets convert the user's voice into electrical signals with a microphone which is typically placed in front of the user's mouth at the end of a microphone boom. The opposite end of the boom is connected to the receiver portion of the headset. Alternatively, the microphone boom may be hollow to carry the user's voice up the tube to a microphone mounted adjacent the receiver. Effective use of a communications headset requires that the microphone be positioned within a particular distance from the user's mouth. The importance of properly positioning a microphone is amplified when high quality noise canceling microphone headsets are used. Communications headsets typically have a microphone positioned on an adjustable arm that allows a user to move the microphone to a desired position, which the user finds comfortable.
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