Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	47.256248	230.2062750000001	568.7477250000001	46.937498	47.574998	0.6375000000000028	20250411_014635UTC_V00OS11.WAV
E	43.262504	257.2894999999998	501.0394999999998	42.812504	43.712504	0.9000000000000057	20250411_014635UTC_V00OS11.WAV
O	49.231248	311.4562749999998	446.87272499999983	48.849998	49.612498	0.7625000000000028	20250411_014635UTC_V00OS11.WAV