Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	39.55	230.21049999999977	677.0854999999998	39.225	39.875	0.6500000000000057	20250131_140250UTC_V00OS11.WAV
U	55.081248	880.2082249999999	1029.166775	54.1625	55.999996	1.8374960000000016	20250131_140250UTC_V00OS11.WAV
O	41.081248	379.16872499999977	528.1272749999998	40.449996	41.712500000000006	1.262504000000007	20250131_140250UTC_V00OS11.WAV
O	41.1	433.3332249999999	663.5417749999999	40.5125	41.6875	1.1749999999999972	20250131_140250UTC_V00OS11.WAV