Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	36.931248	0.0022750000003526	176.04372500000034	36.849998	37.012498	0.1624999999999943	20250417_182835UTC_V00OS11.WAV
D	37.887496	0.0032500000003778	988.5427500000004	37.699996	38.074996	0.375	20250417_182835UTC_V00OS11.WAV
D	49.037504	135.41775000000035	920.8322500000004	48.812504	49.262504	0.4500000000000028	20250417_182835UTC_V00OS11.WAV