Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
T	31.531248	392.7105000000001	555.2105000000001	31.062496	32.0	0.937503999999997	20250419_183435UTC_V00OS11.WAV
U	47.25	3683.3355	3845.8355	46.5125	47.9875	1.4749999999999943	20250419_183435UTC_V00OS11.WAV
T	47.287496	392.7082249999997	582.2917749999997	46.574996	47.999996	1.4249999999999972	20250419_183435UTC_V00OS11.WAV