Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	20.593752	5755.2092	6499.998700000001	20.250002	20.937502	0.6875	20250201_125050UTC_V00OS11.WAV
K	54.5	934.3772750000002	1557.293725	54.1125	54.8875	0.7750000000000057	20250201_125050UTC_V00OS11.WAV