Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
V	27.462504	1015.625	1421.875	27.262504	27.662504	0.3999999999999986	20250419_115235UTC_V00OS11.WAV
D	28.568752	135.41775000000007	812.5032500000001	28.287502	28.850002	0.5625	20250419_115235UTC_V00OS11.WAV
D	41.856248	121.875	893.75	41.674998	42.037498	0.3624999999999971	20250419_115235UTC_V00OS11.WAV