Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
F	39.75	0.0	771.8749999999998	39.5625	39.9375	0.375	20250412_081035UTC_V00OS11.WAV
O	36.762496	216.66872500000008	325.00227500000005	36.274996	37.249996	0.9749999999999944	20250412_081035UTC_V00OS11.WAV
E	44.912496	541.6645	744.7895	44.524996	45.299996	0.7750000000000057	20250412_081035UTC_V00OS11.WAV
O	46.587504	176.03949999999995	297.9145	45.937504	47.237504	1.2999999999999972	20250412_081035UTC_V00OS11.WAV
O	41.818752	176.04372499999977	325.00227499999977	41.25	42.38750400000001	1.137504000000007	20250412_081035UTC_V00OS11.WAV