Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
L	3.937504	148.95822500000017	379.16677500000014	3.625004	4.250004000000001	0.6250000000000004	20250421_084635UTC_V00OS11.WAV
O	47.106248	297.9167749999997	473.9582249999997	46.774998	47.437498	0.6624999999999943	20250421_084635UTC_V00OS11.WAV