Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	4.925	0.0022750000003526	176.04372500000034	4.8375	5.0125	0.1750000000000007	20250418_014035UTC_V00OS11.WAV
U	51.793752	893.747725	1002.081275	51.075	52.512504	1.437504000000004	20250418_014035UTC_V00OS11.WAV