Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	50.012504	54.1677500000003	1015.6282500000002	49.762504	50.262504	0.5	20250414_234635UTC_V00OS11.WAV
D	39.106248	203.1217499999996	1042.7072499999997	38.924998	39.287498	0.3624999999999971	20250414_234635UTC_V00OS11.WAV
D	36.818752	176.03949999999975	988.5394999999996	36.625002	37.012502000000005	0.3875000000000028	20250414_234635UTC_V00OS11.WAV
D	26.775	67.70724999999993	1029.1677499999998	26.475	27.075	0.6000000000000014	20250414_234635UTC_V00OS11.WAV