Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	39.887496	243.7499999999997	528.1249999999998	39.774996	39.999996	0.2249999999999943	20250418_023435UTC_V00OS11.WAV
E	39.025	297.9187249999999	528.1272749999999	38.65	39.4	0.75	20250418_023435UTC_V00OS11.WAV
B	39.893752	257.29372500000034	528.1272750000004	39.812502	39.975002	0.1624999999999943	20250418_023435UTC_V00OS11.WAV