Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	31.031248	297.9187250000001	446.87727500000005	30.387496	31.675	1.2875039999999984	20250306_021417UTC_V00OS11.WAV
U	30.275	2193.75	2396.875	29.4125	31.1375	1.7250000000000014	20250306_021417UTC_V00OS11.WAV