Filter the recording

Aim

Filter the signal to display and analyze only frequencies above a specific threshold, and to eliminate noise in the audible range (up to 20 kHz).

Procedure

important When you filter a recording, all call definitions and calls are deleted. Make sure you apply a filter before you Define a call.

1.In the Call Detection or Call Labeling screen, under View click the Filter button.

2.Enter the value you require in the Cut off frequency field.

3.Click Apply.

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Notes

nA copy of the unfiltered recording is kept in the Recording List. See The Recording List