Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
"B"""	40.6875	433.3332250000003	622.9167750000004	40.6	40.775	0.1749999999999971	20250414_125235UTC_V00OS11.WAV
P'	49.106248	284.37272499999983	473.9562749999998	48.612496	49.6	0.9875040000000012	20250414_125235UTC_V00OS11.WAV
M	52.25	40.62727500000035	135.41872500000034	51.825	52.675	0.8499999999999943	20250414_125235UTC_V00OS11.WAV