Detection of sounds

Does anyone know if there is a VI to do this

I would like to leave a microphone connected to the computer and if there is a noise in the room make a value Boolean true.

any help is appreciated

This example is only by pulling a single value out of essentially a periodic table.  This will give very inconsistent results.  Joined a VI that can best work for you.  Run it with no noise and a threshold of a few hundred to get the normal background of your room.  Multiply your bottom close to 10% or 20% to add a little padding, then this set for the threshold.  Run and it should work.  Since you are looking for a pulse, the analysis is a simple measure of Ridge to Ridge.  If your background noise is very long, you can replace this with an effective measure to give you more noise immunity.

Tags: NI Software

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