Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	3.35	216.66775000000035	975.0032500000004	3.1875	3.5125	0.3250000000000002	20250203_095650UTC_V00OS11.WAV
C	20.506248	3385.4177500000005	4577.08225	20.312498	20.699998	0.3875000000000028	20250203_095650UTC_V00OS11.WAV
D	20.462504	3493.75325	4563.5427500000005	20.237504	20.687504	0.4500000000000028	20250203_095650UTC_V00OS11.WAV