Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	50.856248	121.8717500000002	1002.0822500000002	50.674998	51.037498	0.3624999999999971	20250212_152650UTC_V00OS11.WAV
D	4.25	135.41449999999998	947.9145	4.0875	4.4125	0.3249999999999993	20250212_152650UTC_V00OS11.WAV