Frequency Detector icon Frequency Detector — Detect audio frequencies via PC microphone (FFT), output a variable and drive servos within configurable min/max ranges with waveform feedback. Try it →

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#1  

Yes, if you're strictly looking for a loud sound to be detected use a microphone + amplifier circuit connected to an analog port. If you're looking to detect voice, use a microphone connected to a computer.

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Synthiam
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#2   — Edited

I moved your question to it’s own thread because it was asked in an unrelated thread. Please use correct thread topics or create a new one if one does not exist.:) Thanks!

#3  

Thank You this answered my question.