Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
D	50.668752	4577.08225	5687.49675	50.425002	50.912502	0.4874999999999971	20250411_020435UTC_V00OS11.WAV
T	53.143752	392.7105000000001	555.2105000000001	52.275004	54.0125	1.737495999999993	20250411_020435UTC_V00OS11.WAV
E	50.056248	501.0395000000001	704.1645000000001	49.537496	50.575	1.0375039999999984	20250411_020435UTC_V00OS11.WAV
T	46.368752	379.1687250000001	568.752275	45.3	47.437504	2.137504000000007	20250411_020435UTC_V00OS11.WAV