Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	55.256248	243.75	365.625	54.7125	55.799996	1.0874960000000016	20250304_032017UTC_V00OS11.WAV
T	55.287496	243.75	365.625	54.749996	55.824996	1.0750000000000028	20250304_032017UTC_V00OS11.WAV
T	49.443752	528.1227249999996	717.7062749999997	48.900004	49.9875	1.0874960000000016	20250304_032017UTC_V00OS11.WAV
T	48.5375	392.7082250000002	541.6667750000001	48.0	49.075	1.0750000000000028	20250304_032017UTC_V00OS11.WAV