Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	36.5	230.20627499999964	406.2477249999996	35.95	37.05	1.0999999999999943	20250412_012835UTC_V00OS11.WAV
T	49.193752	352.08127499999966	487.4977249999996	48.0	50.38750400000001	2.387504000000007	20250412_012835UTC_V00OS11.WAV
O	47.85	297.91872500000034	487.5022750000004	47.725	47.975	0.25	20250412_012835UTC_V00OS11.WAV
D	40.893752	54.16775000000035	1002.0822500000004	40.687502	41.100002	0.4124999999999943	20250412_012835UTC_V00OS11.WAV