The Spectrum Viewer
When the mouse is clicked on a spectrogram, the
spectrum viewer
window appears showing the spectrum and the waveform centered at the selected time point,
with the selected frequency marked by a red cursor line. The spectrum viewer can also be
used to display an average spectrum (of a selection, of the spectrogram, or of the entire
file), or multiple single spectra, from different places in the same file or from
different files. The spectrum viewer allows precise measurement of the onset or duration
of an event. The spectrum viewer can be enlarged to fill the entire screen.

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