Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	31.712504	311.4605000000004	677.0855000000004	31.462504	31.962504	0.5	20250221_095050UTC_V00OS11.WAV
E	35.618752	338.5437250000001	609.377275	35.250002	35.987502	0.7374999999999972	20250221_095050UTC_V00OS11.WAV
E	22.568752	352.0855000000004	636.4605000000004	22.300002	22.837502	0.5375000000000014	20250221_095050UTC_V00OS11.WAV
E	9.4	338.54372500000034	650.0022750000004	9.1125	9.6875	0.5749999999999993	20250221_095050UTC_V00OS11.WAV