Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
"B"""	41.631248	0.0	189.5812750000001	41.524998	41.737498	0.2125000000000056	20250409_214035UTC_V00OS11.WAV
B	41.637504	0.0022750000003526	176.04372500000034	41.550004	41.725004	0.1749999999999971	20250409_214035UTC_V00OS11.WAV