Method of making and using microphones for recording telephone c

Details Method of making and using microphones for recording telephone c Method of making and using microphones for recording telephone c

1988-12-06

1990-10-02

Yost, Frank T.

Cutting

Processes

B26D 100

Patent

active

049600184

ABSTRACT:
A method for recording and playing back telephone conversations is provided. In the method, a unitary microphone/speaker is positioned near the listener's ear so that the unitary microphone/speaker will be in the sound chamber defined by the air space between the telephone earpiece and the ear of the listener when the earpiece is pressed against the listener's ear. The unitary microphone/speaker is connected to an audio recorder/player, and the conversation is recorded. The telephone earpiece is removed from the listener's ear, and the recorded telephone conversation is played back by the recorder/player. The telephone conversation may be played back through the unitary microphone/speaker directly into the listener's ear. In accordance with another aspect of the invention, a method is provided for enabling the conversion of an ear mounted speaker into a unitary microphone/speaker for use in the sound chamber between the earpiece and the listener's ear. More specifically, an ear mounted, electromagnetic speaker whose transducer is small enough to fit into the sound chamber but whose housing is too large to fit into the sound chamber is obtained. Then, the size of the housing is reduced so that it is small enough to fit into the sound chamber. When the housing of the electromagnetic transducer of the ear mounted speaker is small enough to fit into the sound chamber, the speaker in the sound chamber is capable of functioning as a unitary microphone/speaker.

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