Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	37.45	311.4562750000001	487.49772500000006	36.975	37.925	0.9500000000000028	20250307_200817UTC_V00OS11.WAV
E	30.043752	392.7105000000001	555.2105000000001	29.600004	30.4875	0.8874959999999987	20250307_200817UTC_V00OS11.WAV
B	10.131248	13.53950000000009	176.0395000000001	10.049998	10.212498	0.1625000000000014	20250307_200817UTC_V00OS11.WAV
E	41.837496	297.9187250000002	568.7522750000002	41.362496	42.312496	0.9500000000000028	20250307_200817UTC_V00OS11.WAV