mayrp2001

Hi, Im hoping someone can help me. It probably is a really simple fix and im just not seeing it. Basically I have an fft visualizer that shows the input coming from selected frequency ranges. I have a level meter to show this. What I want to do is have the level meter control a slider which will show the amount of signal in that given frequency range. The sliders will then trigger different samples and sensors on the arduino. Can anyone please help.

control-of-slider

Because the level meter outputs dB values I cant think of the maths to use to have it control the slider.

Control of slider!!!