Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	51.031248	311.4582250000004	744.7917750000004	50.774998	51.287498	0.5125000000000028	20250218_055650UTC_V00OS11.WAV
O	54.118752	243.74772499999992	433.3312749999999	53.737502	54.500002	0.7625000000000028	20250218_055650UTC_V00OS11.WAV
F	43.706248	81.25227500000037	501.04372500000034	43.449998	43.962498	0.5125000000000028	20250218_055650UTC_V00OS11.WAV