Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	46.762496	501.0437249999999	731.2522749999999	46.274996	47.249996	0.9749999999999944	20250210_234450UTC_V00OS11.WAV
H	48.1812504	216.666775	392.708225	48.0250004	48.3375004	0.3125	20250210_234450UTC_V00OS11.WAV
U	55.243752	839.5812749999997	1015.6227249999996	54.4875	56.000004	1.512504000000007	20250210_234450UTC_V00OS11.WAV