Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	35.6	297.91677500000014	636.4582250000002	35.300000000000004	35.9	0.5999999999999943	20250220_111450UTC_V00OS11.WAV
E	39.581248	352.083225	663.541775	39.187498000000005	39.974998	0.7874999999999943	20250220_111450UTC_V00OS11.WAV
E	52.768752	379.1667750000004	677.0832250000003	52.362504	53.175	0.8124959999999959	20250220_111450UTC_V00OS11.WAV