Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	7.725	243.74675000000013	1286.4572500000004	7.4875	7.962499999999999	0.4749999999999996	20250412_012235UTC_V00OS11.WAV
F	31.737504	13.539499999999975	1069.7895	31.550004	31.925004	0.375	20250412_012235UTC_V00OS11.WAV
U	44.756248	934.372725	1083.331275	44.237496	45.275	1.0375039999999984	20250412_012235UTC_V00OS11.WAV