Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	52.968752	189.5854999999998	920.8354999999998	52.775002	53.162502	0.3875000000000028	20250411_044635UTC_V00OS11.WAV
U	54.387496	934.3727249999996	1123.9562749999996	53.612496	55.162496	1.5499999999999972	20250411_044635UTC_V00OS11.WAV
T	44.087504	528.125	690.625	43.412504000000006	44.762504	1.3499999999999943	20250411_044635UTC_V00OS11.WAV