Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
C	34.7	0.0	1015.625	34.462500000000006	34.9375	0.4749999999999943	20250411_031035UTC_V00OS11.WAV
D	48.925	216.66775	934.37825	48.7625	49.0875	0.3250000000000028	20250411_031035UTC_V00OS11.WAV