How does the Crest/Crest Advanced trigger work?

The Crest Trigger releases when the ratio of the loudest frequency (Xmax) and noise (XRMS) is higher than the selected Crest faktor C:

Crest trigger

Advantages Crest Advanced:

Very sigh sensitivity (with default settings) Sensitivity can be adjusted easily Upper and lower trigger frequency can be set Reduces triggering due to interference noise up to 25 kHz

Advantages Crest:

High sensitivity (with default settings) Sensitivity can be adjusted accurately Lowest operating frequency can be set (HP)

Disadvantages:

Responds to any loud, narrow-band sound, eg to technical sounds and insects

Settings Crest Advanced (Values mean default values):

Min. Crest = 7, lower values trigger easier Min. frequency = 15 kHz Max. frequency = 155 kHz

Settings Crest (Values mean default values):

Min. Crest = 6, lower values trigger easier Min. RMS = 2, lower values trigger easier Min. Peak = 2, lower values trigger easier Min. frequency (HP) = 6 (-> 7 kHz)

More about:
BATLOGGER
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