So a shotgun range opened near my house and I've been tasked by the HOA to do some nuisance analysis. I've got a quick sample of audio and want to find the peak noise levels at the places where the shots are heard. Can anyone help me understand the relative scale (-1 to 1) that
AudioData returns? Is this an absolute or relative scale?
sbs = Import["https://drive.google.com/uc?export=download&id=0B-No0nABM5N8c1FoNFA5LU42QWc"] (* Show the whole file: *) Spectrogram[sbs] (* Plots the first 2 seconds: *) ListLinePlot[AudioData[sbs][[All, ;; 200000]], PlotRange -> All]
You can see the file is pretty quiet, which is fine, but I really want to extract the peak noise from those spots around 1, 14, and 16 seconds.