Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	55.656248	487.502275	744.7937249999999	55.337498	55.974998	0.6375000000000028	20250410_004635UTC_V00OS11.WAV
U	37.356248	514.5854999999999	717.7104999999999	36.787496	37.925	1.137504000000007	20250410_004635UTC_V00OS11.WAV
E	37.362504	514.5812749999997	731.2477249999996	36.837504	37.887504	1.0499999999999972	20250410_004635UTC_V00OS11.WAV