Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
T	53.587504	487.4977250000002	636.4562750000002	53.087504	54.087504	1.0	20250410_214635UTC_V00OS11.WAV
B	50.331248	0.0	162.49999999999972	50.249998000000005	50.412498	0.1624999999999943	20250410_214635UTC_V00OS11.WAV