Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	36.937504	13.54372500000035	162.50227500000034	36.850004	37.025004	0.1749999999999971	20250412_005235UTC_V00OS11.WAV
O	39.343752	27.083224999999715	135.41677499999972	38.900004	39.7875	0.8874959999999987	20250412_005235UTC_V00OS11.WAV
P	50.193752	108.33550000000034	270.8355000000004	49.525004	50.8625	1.3374960000000016	20250412_005235UTC_V00OS11.WAV