Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	36.5	121.8782500000001	826.0427500000001	36.25	36.75	0.5	20250222_181450UTC_V00OS11.WAV
E	30.718752	297.9187250000001	650.002275	30.437502	31.000002	0.5625	20250222_181450UTC_V00OS11.WAV
E	3.962504	379.1645000000001	622.9145000000001	3.462504	4.462504	1.0	20250222_181450UTC_V00OS11.WAV