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  1. #1
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    Ofiice sound level monitoring - audio amplifier sound levels

    I want to build a box which monitors certain levels in our office, I am having problems with getting the sound level monitoring. I have purchase a couple of Arduino microphone boards. but the sounds level voltage is quite low and looking at an LM386 amplifier. I have done a lot of searching on the net and seem to be going around in circles on a suitable circuit/interface.

    I primary want to measure sound levels in a office, ideally convert them to dB's and log the data during the day. I plan to use an Arduino yun so the ADC voltage will be 0 to 5v and I would like to obtain a good range of sound and be quite sensitivity.

    Not sure if any one could point me in the right direction to help to source a suitable design.

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  2. #2
    Advanced Member level 3
    Points: 5,107, Level: 16
    kam1787's Avatar
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    Re: Ofiice sound level monitoring - audio amplifier sound levels

    which boards did you try?

    this might help http://forum.arduino.cc/index.php/topic,21747.0.html



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