Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
M	33.481248	54.166775	148.958225	32.662496	34.300000000000004	1.637504000000007	20250214_162650UTC_V00OS11.WAV
O	52.493752	40.62500000000029	203.12500000000028	52.187502	52.800002	0.6124999999999972	20250214_162650UTC_V00OS11.WAV