Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
P	54.612504	81.25227500000005	257.29372500000005	53.687504	55.537504	1.8499999999999943	20250410_020435UTC_V00OS11.WAV
T	54.606248	94.791775	311.458225	53.712496	55.5	1.7875039999999984	20250410_020435UTC_V00OS11.WAV
T	49.85	419.79372500000034	568.7522750000004	48.475	51.225	2.75	20250410_020435UTC_V00OS11.WAV
C	47.212504	148.95724999999965	1096.8717499999996	47.062504	47.362504	0.2999999999999971	20250410_020435UTC_V00OS11.WAV