Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
V	49.331248	1245.8355	1530.2105	49.137498	49.524998	0.3875000000000028	20250411_025235UTC_V00OS11.WAV
O	55.356248	297.91677500000014	433.3332250000002	54.712496	56.0	1.2875039999999984	20250411_025235UTC_V00OS11.WAV
D	51.531248	203.12175000000008	1002.0822500000002	51.362498	51.699998	0.3375000000000057	20250411_025235UTC_V00OS11.WAV