Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
V	19.412496	1272.9145	1638.5395	19.287496	19.537496	0.25	20250422_144035UTC_V00OS11.WAV
V	37.868752	1191.666775	1448.958225	37.687502	38.050002	0.3624999999999971	20250422_144035UTC_V00OS11.WAV
U	51.337504	785.4167750000001	961.458225	50.725004000000006	51.950004	1.2249999999999943	20250422_144035UTC_V00OS11.WAV