Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	55.731248	203.1227250000002	514.5812750000002	55.487498	55.974998	0.4874999999999971	20250412_001635UTC_V00OS11.WAV
E	48.5937504	419.793725	731.252275	48.3375004	48.8500004	0.5125000000000028	20250412_001635UTC_V00OS11.WAV
P	55.531248	108.3312749999998	243.7477249999998	55.062496	56.0	0.937504000000004	20250412_001635UTC_V00OS11.WAV
P'	55.5	81.25000000000014	243.7500000000001	55.075	55.925	0.8499999999999943	20250412_001635UTC_V00OS11.WAV
P'	42.268752	94.79177500000014	230.2082250000001	41.8125	42.725004	0.9125039999999984	20250412_001635UTC_V00OS11.WAV
P'	46.112504	81.24772500000023	230.20627500000023	45.700004	46.525004	0.8250000000000028	20250412_001635UTC_V00OS11.WAV