Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	42.175	555.2082250000003	704.1667750000004	41.6	42.75	1.1500000000000057	20250414_065835UTC_V00OS11.WAV
T	42.193752	555.2082250000003	704.1667750000004	41.650004	42.7375	1.0874960000000016	20250414_065835UTC_V00OS11.WAV