Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	28.325	893.7477250000002	1042.7062750000002	27.5875	29.0625	1.4750000000000014	20250221_222650UTC_V00OS11.WAV
T	18.65	406.24772499999983	555.2062749999998	17.8125	19.4875	1.6749999999999972	20250221_222650UTC_V00OS11.WAV