Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	29.156248	297.9145000000001	501.0395000000001	28.812498	29.499998	0.6875	20250305_082617UTC_V00OS11.WAV
E	29.168752	311.458225	501.041775	28.800002	29.537502	0.7374999999999972	20250305_082617UTC_V00OS11.WAV