Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
M	44.762496	40.62272500000009	148.9562750000001	44.374996	45.149996	0.7750000000000057	20250304_162017UTC_V00OS11.WAV
O	44.193752	13.54372500000035	162.50227500000034	43.925002000000006	44.462502	0.5374999999999943	20250304_162017UTC_V00OS11.WAV