Voice Activated Switch

This circuit uses an MC2830 to form a voice activated switch (VOX). A traditional VOX circuit is unable to distinguish between voice and noise in the incoming signal. In a noisy environment, the switch is often triggered by noise, or the activation sensitivity must be turned down.This circuit overcomes this weakness. The switch is activated by voice level above the noise and not activated by background noise. This is done by utilizing the differences in voice and noise waveforms. Voice [...]

21/05/2008 | Telemetry Equipment | Tecnologia | voice

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21/05/2008 | APPLIED ELECTRONIC CIRCUIT | of the

Water Level Alarm

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21/05/2008 | TEST AND MEASUREMENT | distance

FM Transmitter From David Sayles

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21/05/2008 | Radio Frequency Circuits Resource For Transmitter Hobbies | fm transmitter

12 to 28V Boost Regulator LM2585

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21/05/2008 | POWER SUPPLY CIRCUIT | regulator