Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	49.718752	0.0022750000003526	176.04372500000034	49.625002	49.812502	0.1875	20250412_103435UTC_V00OS11.WAV
T	53.481248	487.4977249999997	677.0812749999998	52.8125	54.149996	1.3374960000000016	20250412_103435UTC_V00OS11.WAV