Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	52.756248	0.0022750000003526	176.04372500000034	52.674998	52.837498	0.1624999999999943	20250409_043435UTC_V00OS11.WAV
T	55.456248	541.6667750000004	717.7082250000003	55.0375	55.874996	0.8374960000000016	20250409_043435UTC_V00OS11.WAV