Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
L	38.325	162.50227500000037	419.79372500000034	37.7875	38.8625	1.0750000000000028	20250419_073435UTC_V00OS11.WAV
K	30.206248	4414.585499999999	5105.210499999999	29.862498	30.549998	0.6875	20250419_073435UTC_V00OS11.WAV