Compute the spectral activity using scikit-maad — maad_spectral_activity • sonicscrewdriver

Acoustic activity corresponds to the portion of the spectrogram above a threshold frequency per frequency along time axis towsey2017sonicscrewdriver.

Usage

maad_spectral_activity(object, dB_threshold = 6, maad = NULL)

Arguments

object: A Wave object or a spectrogram_maad object.
dB_threshold: dB threshold of activity (default = 6).
maad: An optional maad object. If not provided, one will be created using getMaad().

Value

The function computes for each frequency bin:

ACTfract: Proportion (fraction) of points above the threshold.
ACTcount: Total number of points above the threshold.
ACTmean: Mean value (in dB) of the portion of the signal above the threshold.

References