Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	18.625	13.53950000000009	176.0395000000001	18.5375	18.7125	0.1749999999999971	20250418_174635UTC_V00OS11.WAV
O	42.331248	284.37272499999995	392.7062749999999	41.8875	42.774996	0.8874959999999987	20250418_174635UTC_V00OS11.WAV
U	43.743752	1503.1249999999998	1624.9999999999998	43.0375	44.450004	1.4125039999999984	20250418_174635UTC_V00OS11.WAV