Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
M	29.925	40.625	162.5	29.6375	30.2125	0.5750000000000028	20250410_164035UTC_V00OS11.WAV
F	7.743752	0.0	487.4999999999999	7.562501999999999	7.925002	0.3625000000000007	20250410_164035UTC_V00OS11.WAV