Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	36.756248	541.6667750000004	717.7082250000003	36.275	37.237496	0.9624960000000016	20250418_043435UTC_V00OS11.WAV
E	36.768752	541.6667750000004	717.7082250000003	36.3125	37.225004	0.9125039999999984	20250418_043435UTC_V00OS11.WAV