'filii' in the plural could either mean 'sons' or a mixed group of sons and daughters, i.e. children. The person who recorded this also puts glottal stops between her syllabic vowels when it should just be /ˈfiː.li.iː ˈme.iː/ with no breaks in 'ii' or 'ei'.
I think children should be "liberi", or am I remembering something falsely?
Why "student" is pronunced "studet", without the "n"?
(just asking to learn, I don't say the audio is wrong on that point)