Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
X	37.668752	4468.747725000001	4698.9562750000005	37.587502	37.750002	0.1624999999999943	20250309_151417UTC_V00OS11.WAV
U	42.618752	893.747725	1002.081275	42.062504	43.175	1.112495999999993	20250309_151417UTC_V00OS11.WAV