Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
C	41.425	162.49675000000002	1245.8322500000002	41.2125	41.6375	0.4249999999999971	20250411_095835UTC_V00OS11.WAV
B	42.356248	0.0	189.5812750000001	42.274998	42.437498	0.1624999999999943	20250411_095835UTC_V00OS11.WAV