Table 3.

Univariate analysis of variance (ANOVA) on individual acoustic features.

Call	Acoustic parameter	F	P
Steep-FM	Min frequency	140.1	<0.0001
	Max frequency	23.82	<0.0001
	Duration	15.9	<0.0001
Broadband noise burst	Min frequency	1.85	0.122
	Max frequency	44.46	<0.0001
	Duration	95.26	<0.0001