Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	42.606248	67.71049999999985	961.4605	42.449998	42.762498	0.3125	20250417_184635UTC_V00OS11.WAV
D	44.793752	135.41774999999978	975.0032499999998	44.562502	45.025002	0.4625000000000057	20250417_184635UTC_V00OS11.WAV
C	49.431248	3.410605131648481e-13	1056.2500000000005	49.174998	49.687498	0.5125000000000028	20250417_184635UTC_V00OS11.WAV
C	49.531248	230.2072500000001	907.29275	49.324998	49.737498	0.4124999999999943	20250417_184635UTC_V00OS11.WAV