Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	37.768752	121.87174999999996	961.45725	37.575002	37.962502	0.3875000000000028	20250211_192050UTC_V00OS11.WAV
V	48.7562504	514.5832249999999	988.541775	48.6125004	48.9000004	0.2874999999999943	20250211_192050UTC_V00OS11.WAV