Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	37.887496	148.9572499999997	1015.6217499999998	37.687496	38.087496	0.4000000000000057	20250415_002235UTC_V00OS11.WAV
D	27.268752	121.8717500000002	1002.0822500000002	27.075002	27.462502	0.3875000000000028	20250415_002235UTC_V00OS11.WAV
D	49.393752	257.29275000000035	934.3782500000004	49.150002	49.637502	0.4874999999999971	20250415_002235UTC_V00OS11.WAV