@elilla it's not as good as informant was, but https://spec.sumianvoice.com/ has some formant tracking
@elilla if you go to the top left, there are some toggle buttons - one of them is formant tracking
it is a bit flaky, needs minimal bg noise IIRC
@ckie here's me doing a transition from [a:] to [i:] in Praat default settings for comparison. You can clearly see F1 and F2 close together in [a] then diverging in [i], even before it does the tracking (shown as red dotted lines)
@ckie does it do formant tracking? I'm only seeing a spectrogram. plus I can't really see the formant movements between vowels clearly in the spectograph anyway (same problem as Friture)