Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
T	53.318752	324.99999999999983	568.7499999999998	52.175004	54.462500000000006	2.2874960000000044	20250409_222835UTC_V00OS11.WAV
O	50.856248	270.83322499999986	419.7917749999998	50.05	51.662496	1.612495999999993	20250409_222835UTC_V00OS11.WAV
P	50.862496	270.8354999999998	433.3354999999998	50.049996	51.674996	1.625	20250409_222835UTC_V00OS11.WAV
B	43.256248	0.0022750000003526	176.04372500000034	43.174998	43.337498	0.1624999999999943	20250409_222835UTC_V00OS11.WAV