| 摘要 |
A noise removing device in an earmike is provided to block that friction noise, generated in the speaker terminal of an earjack, is outputted to a speaker until the earmike is completely inserted into an earjack connector. A noise removing device in an earmike comprises the following parts: an audio signal input/output unit(2) which transmits an audio signal received from the earmike to a main body and outputs the audio signal transmitted from the main body; an earjack(200) which has a microphone terminal(10a), a speaker terminal(20a,30a), and a ground terminal(40a); and a switch circuit unit(11) which supplies the connection path of the earjack and the audio signal input/output unit.
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