Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	9.643752	67.70724999999993	812.4967499999999	9.425002	9.862502	0.4375	20250201_132650UTC_V00OS11.WAV
E	29.706248	243.7477250000001	758.3312750000001	29.462498000000004	29.949998	0.4874999999999971	20250201_132650UTC_V00OS11.WAV