Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
P	51.793752	81.24772500000023	230.20627500000023	51.262504	52.325	1.062495999999996	20250409_184035UTC_V00OS11.WAV
B	48.931248	0.0022750000003526	176.04372500000034	48.837498	49.024998	0.1875	20250409_184035UTC_V00OS11.WAV