Have you used audio sensors?

This poll is embedded in Round-Up and Review - What's Happening?

Have you used audio sensors for more than voice? Perhaps to profile mechanical devices, maybe heart rate/beat, or perhaps as part of security or ultrasonic?

Top Comments

DAB over 5 years ago +1

I use audio sensor to detect thunder after lightning strikes. DAB

Parents

robogary over 5 years ago

I love electret microphones for audio. They are inexpensive and easy to use.
I'm mostly using them to detect audio sound levels, like a clapper switch ( clap once to turn on a light, clap again to turn off),
and in an array to determine direction sound is coming from -- for example, turning an animatronic head to face someone talking.
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cstanton over 5 years ago in reply to robogary

I wonder, is there some differentiation between a clap and something falling over?
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cstanton over 5 years ago in reply to robogary

I wonder, is there some differentiation between a clap and something falling over?
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robogary over 5 years ago in reply to cstanton

depends how hard something falls and how loud the noise is.
I suppose someone could do a fast Fourier transform to analyze the noise source for harmonic patterns, I'm too lazy for that sophistication :-)
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