Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	47.187504	216.66775000000035	1042.7072500000004	47.037504	47.337504	0.2999999999999971	20250412_044635UTC_V00OS11.WAV
B	33.843752	0.0022750000003526	176.04372500000034	33.762502000000005	33.925002	0.1624999999999943	20250412_044635UTC_V00OS11.WAV