Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	46.431248	257.2917749999997	514.5832249999997	45.999996	46.8625	0.8625040000000013	20250411_041035UTC_V00OS11.WAV
P'	50.481248	284.375	528.125	50.112498	50.849998	0.7374999999999972	20250411_041035UTC_V00OS11.WAV
E	50.468752	230.2082249999997	541.6667749999997	50.162502	50.775002	0.6124999999999972	20250411_041035UTC_V00OS11.WAV
U	52.85	907.293725	1056.252275	52.1375	53.5625	1.4249999999999972	20250411_041035UTC_V00OS11.WAV