Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	20.781248	162.49772499999983	798.9562749999998	20.524998	21.037498	0.5125000000000028	20250218_194450UTC_V00OS11.WAV
D	20.806248	176.0437250000004	812.5022750000003	20.587498	21.024998	0.4375	20250218_194450UTC_V00OS11.WAV
E	53.131248	379.16677500000014	758.3332250000001	52.862498	53.399998	0.5374999999999943	20250218_194450UTC_V00OS11.WAV