Everything below is measured in this tab. The file is decoded locally, nothing is uploaded, and closing the page is the only cleanup there is.
Spectrogram
4096 point FFT / logarithmic frequency / colour is magnitude
20 Hz at the foot20 kHz at the head
Integrated
--LUFSBS.1770-4, gated
Range
--LU10th to 95th pct
Tempo
--BPMonset autocorrelation
Stereo field
correlation --
vertical is monohorizontal is out of phase
Levels
short term --
waveform overviewplayhead in amber