Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	54.993752	866.6687250000002	1015.6272750000004	54.425	55.562504	1.137504000000007	20250410_215235UTC_V00OS11.WAV
C	45.656248	54.164499999999975	1029.1645	45.449998	45.862498	0.4124999999999943	20250410_215235UTC_V00OS11.WAV
D	45.675	176.04275000000035	1015.6282500000004	45.5	45.85	0.3499999999999943	20250410_215235UTC_V00OS11.WAV