Table 4:

Means and standard deviations for the 7 spectral and temporal features estimated from spectrograms of 600 infant coppery titi monkey (Plecturocebus cupreus) trill vocalizations from 30 individuals.

Parameter	Mean ± SD	Range
Lowest Frequency (kHz)	7271.1 ± 667.9	5250.0 – 8906.2
Highest Frequency (kHz)	8097.0 ± 654.6	600.0 – 10125.0
Duration (s)	0.5 ± 0.1	0.2 – 0.9
Bandwidth (kHz)	825.9 ± 408.9	187.5 – 2906.2
Center Frequency (kHz)	7719.7 ± 640.5	5812.5 – 9375.0
Trill Count	20.3 ± 5.5	6 – 36
Trill Rate (# of notes/trill duration)	0.026 ± 0.003	0.018 – 0.040