title: Trouble understanding SciPy.signal.spectrogram output
body: <p>I cannot seem to figure out what Sxx in SciPy's spectrogram function represents. It would make sense to me that summing a column of Sxx (summing the entire frequency band of a single time interval) would result in a value similar to the amplitude of that same time interval, but that does not seem to be the case. Can anyone help me better understand what the values mean?</p>