Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	31.381248	121.8717499999998	839.5822499999998	31.137498	31.624998	0.4874999999999971	20250311_110817UTC_V00OS11.WAV
E	53.443752	270.8332250000001	866.6667750000001	53.112502000000006	53.775002	0.6624999999999943	20250311_110817UTC_V00OS11.WAV
D	53.443752	230.2104999999998	880.2104999999998	53.150002	53.737502000000006	0.5875000000000057	20250311_110817UTC_V00OS11.WAV
C	45.825	216.66872500000028	853.1272750000003	45.6875	45.962500000000006	0.2750000000000057	20250311_110817UTC_V00OS11.WAV