Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	50.937504	270.8355000000004	717.7105000000004	50.737504	51.137504	0.4000000000000057	20250423_154035UTC_V00OS11.WAV
O	17.525	162.50227500000037	419.79372500000034	17.299999999999997	17.75	0.4500000000000028	20250423_154035UTC_V00OS11.WAV