| 摘要 |
A push-to-talk switch can have a switch that does not produce an audible sound when actuated. For example, the push-to-talk switch can comprise a membrane switch or a capacitive switch that produces less than 0 dB(A) of wideband sound when actuated. The switch can be actuated by pushing a diaphragm. Sound damping material can be used to mitigate audibility of the switch. Because the push-to-talk switch is substantially silent, it can be used in applications such as covert operations and battle situations where the sound of actuating the switch could have life threatening consequences.
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