Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
"B"""	47.237504	0.0022750000003526	176.04372500000034	47.137504	47.337504	0.2000000000000028	20250409_124035UTC_V00OS11.WAV
B	47.237504	13.53950000000009	176.0395000000001	47.150004	47.325004	0.1749999999999971	20250409_124035UTC_V00OS11.WAV