Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
H	32.6187496	311.4582250000003	541.6667750000003	32.0125016	33.2249976	1.2124960000000016	20250421_122235UTC_V00OS11.WAV
H	23.193752	338.5417749999998	555.2082249999999	22.462504	23.925	1.4624960000000016	20250421_122235UTC_V00OS11.WAV