Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	41.175	717.7062750000001	893.7477250000001	40.4	41.95	1.5499999999999972	20250415_112835UTC_V00OS11.WAV
U	54.55	555.2105000000003	717.7105000000003	53.725	55.375	1.6500000000000057	20250415_112835UTC_V00OS11.WAV
T	54.575	528.1250000000003	731.2500000000003	53.712500000000006	55.4375	1.7249999999999943	20250415_112835UTC_V00OS11.WAV
U	50.225	636.4562750000001	771.8727250000001	49.425	51.025	1.5999999999999943	20250415_112835UTC_V00OS11.WAV