Ishmael
PAMGuard contains three detectors ported from Dave Mellingers Ishmael software.
These all have application with many different sound types and all feature in the Getting Started PAMGuard tutorial.
The three detectors vary in their specificity, that is how well they must match the sound’s your looking for to be of any use.
The energy sum is the least specific of any of the detectors, so will likely pick up any transient sound that has energy in the frequency band of interest. Generally, this detector will work at a very high false alarm rate, but can be useful in screening out data to be further processed with other classifiers.
The matched filter is the most specific and really only responds to sounds that exactly match the ‘kernel’ sound that you’ve configured it with. Generally, this detector is just too specific for most biological data.
The spectrogram correlation detector is a bit in the middle of the other two. It will pick out sounds that match it reasonably well, but doesn’t require the exact match of the matched filter.
The best way to learn about these detectors is to try the Getting Started PAMGuard tutorial.