So I measured volume levels again, this time using pink noise. Here is the raw data from this little science experiment.

I ran the noise at 75 dB because 85 dB of pink noise is REALLY LOUD and annoying. I figured that the exact level at which it is running didn't really matter, as long as it is in the same ballpark as 85.

As you can see the results were less sporadic, but still show the same general pattern of loud and quiet areas.

My question is, does anyone know how to convert this into a color coded map?