Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	27.937504	0.0022750000003526	176.04372500000034	27.862504	28.012504	0.1499999999999985	20250415_174035UTC_V00OS11.WAV
T	29.443752	379.1645000000002	541.6645000000002	28.5625	30.325004	1.7625039999999998	20250415_174035UTC_V00OS11.WAV