PAMGUARD

I would add that this would work for detection functions as well. Some kind
of normalized compressed detection time series (e.g. across all detectors
of type X) could be displayed to avoid plotting the various functions below
a spectrogram, which may take up needed space. The normalization would be
by the current threshold ( 1 = at threshold).

The display could also have min/max bars with some time lag to allow users
to see the range being used and potentially intuitively adjust thresholds
to levels appropriate for the environment. The compressed version might be
expandable to show individual detector levels when needed, otherwise the
overview meter would be present and take up little space on the display.