I'd be interested in seeing some way of showing and logging decibels using a phone's microphone. An audio spectrum analyzer that shows the dominant fr...

So I managed to get some better readings, but still off of what the last dyno reading was. Not sure what to do differently. Still think that it's poss...

I did everything as close as possible to the method described. I have noticed there seems to be a lag in the response for the readouts. I'll try trimm...