Based on amplitude envelope and on Wiener entropy values, the sound is segmented into
syllable and bout units. A final decision if to accept of reject the sound is made based on the
number of syllable, their duration, and the bout duration:
The criteria for saving a sound file (and features) is a combination of these conditions: Note that
longest syllable && bout duration are determined in part by the amplitude and entropy thresholds.
Make sure that those threshold are appropriate by observing the light-blue && red lines at the
bottom of spectral images.
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