Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	43.306248	54.16450000000003	947.9145	43.049998	43.562498	0.5125000000000028	20250417_175835UTC_V00OS11.WAV
C	48.6875	270.8332250000003	785.4167750000004	48.5625	48.8125	0.25	20250417_175835UTC_V00OS11.WAV
D	53.287496	94.78950000000026	1029.1645	53.062496	53.512496	0.4500000000000028	20250417_175835UTC_V00OS11.WAV
C	38.456248	176.04177499999977	798.9582249999996	38.224998	38.687498000000005	0.4625000000000057	20250417_175835UTC_V00OS11.WAV
D	33.356248	135.41775	1015.62825	33.112498	33.599998	0.4874999999999971	20250417_175835UTC_V00OS11.WAV