Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	34.943752	2667.70725	3615.62175	34.725002	35.162502	0.4375	20250204_213850UTC_V00OS11.WAV
C	17.693752	27.083224999999857	663.5417749999998	17.537502	17.850002	0.3125	20250204_213850UTC_V00OS11.WAV