Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	45.612504	1069.7895000000003	1272.9145000000003	44.575004	46.650004	2.075000000000003	20250414_205235UTC_V00OS11.WAV
U	52.506248	1069.7937250000002	1218.752275	51.787496	53.225	1.437504000000004	20250414_205235UTC_V00OS11.WAV
T	52.737504	284.37727500000005	460.4187250000001	51.625004	53.850004	2.2249999999999943	20250414_205235UTC_V00OS11.WAV