I'm using a sound sensor (it does the same with less quality).
I used the A0 directly inputed and i also did that voltage divider with 2 resistors and some capacitors.
It brings so much noise i can't even put that on my hears (it does the same noise as seen in the youtube video that i already posted).
I also tried to add a pull down resistor to see how it reacted to that, but the noise it's the same.
The source is the same above.
