BBW	Blainville’s beaked whales
BFW	blue and fin whales
BMSWV	bull male sperm whale vocalizations
BOWV	Balaenoptera omurai whale vocalizations
BW	blue whale
DP	distinctive peak
DSCV	down-swept contour vocalizations
ES	echolocation signals
EMD	empirical mode decomposition
FMTUC	frequency-modulated tonal up-chirp
HHT	Hilbert–Huang transformation
HT	Hilbert transform
HW	humpback whale
HWV	humpback whale vocalization
IMF	intrinsic mode function
IF	instantaneous frequency
KW	killer whales
LFS	low-frequency sounds
MS	marginal spectrum
PAMS	passive acoustic monitoring system
RF	residual function
R-type	resident-type
SW	sperm whale
TF	time–frequency