Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	27.7	243.7532500000004	947.9177500000004	27.45	27.95	0.5	20250418_204635UTC_V00OS11.WAV
O	33.568752	216.6687250000004	365.6272750000004	33.262502000000005	33.875002	0.6124999999999972	20250418_204635UTC_V00OS11.WAV
I	17.568752	5850.0	6296.875	17.287502	17.850002	0.5625	20250418_204635UTC_V00OS11.WAV
O	40.6687496	189.5855000000004	392.7105000000004	40.4124996	40.9249996	0.5125000000000028	20250418_204635UTC_V00OS11.WAV