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Led circuit controlled on 4Hz to 7 Hz signal labview

i want to make a vi in labview that gives alarm on giving 4t07Hz signal on its input

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Message 1 of 4
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Hi rashidahmad484,

 

How you are acquiring this signal?

 

Best,

 

Carmen C.

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Hi brother...using acquir sound vi.....and giving input on Mic port i am acquire the signal

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I think that you will need to perform a FFT operation so you can get the frequency components and analyze them.

 

Refer to this link. it might help you.

 

 

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