Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
T	52.031248	473.9562750000002	649.9977250000002	51.337496	52.725	1.387504000000007	20250410_085235UTC_V00OS11.WAV
B	29.531248	0.0	162.49999999999972	29.437498	29.624998	0.1875	20250410_085235UTC_V00OS11.WAV
T	36.125	406.24772499999983	555.2062749999998	35.175	37.075	1.9000000000000057	20250410_085235UTC_V00OS11.WAV
U	38.543752	622.9167749999997	758.3332249999996	37.800004	39.2875	1.487495999999993	20250410_085235UTC_V00OS11.WAV