Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	29.937504	121.875	690.625	29.762504	30.112504	0.3500000000000014	20250212_222050UTC_V00OS11.WAV
V	29.931248	121.87272500000012	677.081275	29.749998	30.112498	0.3624999999999971	20250212_222050UTC_V00OS11.WAV