A voice operated relay / Nor Hasnah Hassan

Voice operated relay is actually a device allows virtually hand-free operation of the radio. It sampled the sound from a microphone and switched a relay when the level of the microphone exceed the preset level. The relay is held on as long as the sound level stays above the threshold and when the mi...

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Bibliographic Details
Main Author: Hassan, Nor Hasnah
Format: Thesis
Language:English
Published: 1985
Subjects:
Online Access:https://ir.uitm.edu.my/id/eprint/71045/1/71045.PDF
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