Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
A	52.225	54.168725000000194	203.1272750000002	51.9	52.55	0.6500000000000057	20250421_143435UTC_V00OS11.WAV
A	49.25	67.70822499999986	216.66677499999983	48.7875	49.7125	0.9249999999999972	20250421_143435UTC_V00OS11.WAV
"B"""	0.925	0.0022750000003526	176.04372500000034	0.8375	1.0125	0.1749999999999999	20250421_143435UTC_V00OS11.WAV