[Csnd] List of extended formant filter settings

Hey hey,
I would love to experiment with formant filtering a little more. I know that the Csound manual appendix d
https://csound.com/manual/MiscFormants.html
lists values to create vowels for different vocal registers. But it only includes a, e, i, o and u.

Yet there are other voices vocal sounds, such as l, m or n. Does anyone know of some data in plain text - i.e. not a graphic - which would list such settings for at least one vocal register.

The inspiration is the vocal synthesis engine from the Soma Synth Terra, as seen in this video:

beginning around 5:20.

I would appreciate either formant values for a singer or spoken language, even though I know that there are differences. -- If at all possible, I'd prefer either something free or accessible through a university account, i.e. Google Scholar, Springer and the likes. Though anything is really appreciated.

Best wishes,

Jeanette