Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	50.262504	771.8772749999998	947.9187249999998	49.437504	51.087504	1.6500000000000057	20250306_070217UTC_V00OS11.WAV
T	25.231248	392.7082250000002	541.6667750000001	24.55	25.912496	1.3624960000000002	20250306_070217UTC_V00OS11.WAV