Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
C	24.225	257.29177500000014	880.2082250000001	24.0375	24.4125	0.375	20250419_182235UTC_V00OS11.WAV
D	28.812496	148.95724999999965	893.7467499999996	28.499996	29.124996	0.625	20250419_182235UTC_V00OS11.WAV
D	19.318752	94.78949999999963	947.9144999999996	19.050002	19.587502	0.5375000000000014	20250419_182235UTC_V00OS11.WAV
E	19.312496	94.78949999999963	947.9144999999996	19.049996	19.574996	0.5249999999999986	20250419_182235UTC_V00OS11.WAV