Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
F	32.1687504	6053.125	6459.375	32.0250004	32.3125004	0.2874999999999943	20250417_152235UTC_V00OS11.WAV
B	47.137496	0.0022750000000684	135.41872500000005	47.049996	47.224996	0.1749999999999971	20250417_152235UTC_V00OS11.WAV