Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	53.975	338.54177500000003	473.958225	53.5875	54.3625	0.7750000000000057	20250417_221635UTC_V00OS11.WAV
T	46.356248	365.6250000000003	487.5000000000003	45.637496	47.075	1.437504000000004	20250417_221635UTC_V00OS11.WAV