Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	49.175	203.12500000000017	528.1250000000002	48.4375	49.9125	1.4749999999999943	20250409_203435UTC_V00OS11.WAV
H	49.237496	284.37272500000006	514.5812750000001	48.562496	49.912496	1.3499999999999943	20250409_203435UTC_V00OS11.WAV
H	45.45	257.2917749999997	514.5832249999997	44.7375	46.1625	1.4249999999999972	20250409_203435UTC_V00OS11.WAV