Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
V	53.081248	189.58224999999987	907.2927499999998	52.862498	53.299998	0.4375	20250411_035235UTC_V00OS11.WAV
D	53.1	243.7499999999999	853.1249999999999	52.8625	53.3375	0.4749999999999943	20250411_035235UTC_V00OS11.WAV
B	37.631248	0.0022750000003526	176.04372500000034	37.549998	37.712498	0.1624999999999943	20250411_035235UTC_V00OS11.WAV
D	42.743752	216.666775	798.9582250000001	42.487502	43.000002	0.5125000000000028	20250411_035235UTC_V00OS11.WAV