Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	52.137496	40.62175000000008	758.3322500000002	51.962496	52.312496	0.3499999999999943	20250415_162835UTC_V00OS11.WAV
D	31.643752	81.24674999999979	880.2072499999998	31.487502	31.800002	0.3125	20250415_162835UTC_V00OS11.WAV
F	8.2375	13.543725000000052	528.127275	8.05	8.425	0.375	20250415_162835UTC_V00OS11.WAV
X	47.775	121.8782499999998	785.4177499999998	47.5625	47.9875	0.4249999999999971	20250415_162835UTC_V00OS11.WAV
D	41.912504	54.1677499999999	771.87825	41.737504	42.087504	0.3499999999999943	20250415_162835UTC_V00OS11.WAV