Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	37.8	148.9572499999997	1015.6217499999998	37.65	37.95	0.2999999999999971	20250209_032650UTC_V00OS11.WAV
C	49.006248	67.71050000000002	1083.3355	48.799998	49.212498	0.4124999999999943	20250209_032650UTC_V00OS11.WAV