Baby monitor,

[maria4]

Hi all,

I tried to build a baby monitor use the mic from the computer. As soon as the baby starts crying the led will go green. Unfortunately it doesn't work. Can someone please help me?

Thank you!

[NapDynamite]

Hi Maria,

This is a cool little application for mommies to MONITOR their babies. 🙂
Anyway, first you need to figure out how far the amplitude of the sound goes when baby cries. Note that down and then use "Mask and Limit" express VI to specify a level. When your signal reaches a specific level defined inside the wizard of this express VI, a True/False signal will be generated where you can connect an LED. 

By the way I have seen your VI. There is no point of using Delay function outside the while loop. Put it inside the loop 🙂

Regards.

[RavensFan]

What exactly does "it doesn't work" mean?

What is it doing or not doing?

[maria4]

It does nothing. We set the amplitude limit value of 0.5 but the led doesn't turn on.

[maria4]

Thanks!

can you please tell me were should i put the "mask and Limit"? (in the file i wrote the value is 0.5)

[apok]

you need to monitor the waveform graph, not the 'task id'?

also, keep the compare code inside the while loop..otherwise you will not see the results until stop execution