Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	28.131248	203.1217499999997	961.4572499999996	27.912498	28.349998	0.4375	20250419_222835UTC_V00OS11.WAV
E	7.762496	148.96050000000002	1002.0855	7.574996	7.949996	0.375	20250419_222835UTC_V00OS11.WAV
B	13.268752	162.49999999999983	528.1249999999998	13.162502	13.375002	0.2124999999999985	20250419_222835UTC_V00OS11.WAV
O	43.306248	230.20627499999964	406.2477249999996	43.062498	43.549998	0.4874999999999971	20250419_222835UTC_V00OS11.WAV
D	47.525	148.95725000000033	907.2927500000004	47.3	47.75	0.4500000000000028	20250419_222835UTC_V00OS11.WAV