Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	39.362504	446.8750000000001	690.6250000000001	39.012504	39.712504	0.7000000000000028	20250204_044450UTC_V00OS11.WAV
E	49.268752	406.2500000000001	731.2500000000001	48.7625	49.775004	1.012504000000007	20250204_044450UTC_V00OS11.WAV