| 摘要 |
A piezoelectric microphone comprises a band, a cable, a voice receiving device in contact with a voice source being connected to one ends of band and cable, a plug at the other end of cable, and a voice output device. Microphone is held to a voice source by band. Sound waves from the voice source are converted into a signal in the voice receiving device prior to sending to the voice output device through cable. Then the signal is converted into voice in voice output device for output. With this, outside sound is prevented from coming through the voice receiving device. That is, outside sound can not be transmitted to voice output device through voice receiving device and cable. Hence, the voice receiving device only receives sound waves from the voice source, resulting in a clear voice output through the microphone.
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