Firstly, there are 7 vowels in the proto-lang,

*a, *i, *u₁, *u₂, *o₁, *o₂, and *a, with long versions for each. *u₁, and *o₁ are the certain back vowels, i.e. in all descendents, they'll be back. While *u₂, and *o₂ are uncertain, they might be front, central or back depending on the descendant.

The Phonology is this:

Voiceless: *p, *t, *č, *k, *Q

Voiced: *b, *d, *ž, *g

Nasal: *m, *n

Fricatives: *s, *š, *x, *H,

Liquids: *l, *w, *y

A syllable can of the forms, V, CV, CVC(when V is short). Only voiceless obstruents are permitted as codas. If a coda proceeds another obstruent, It can become Q, or H. Q and H can't be onsets, of word final codas. They come when a coda stop proceeds another consotant (for Q) or when a coda fricative proceeds another consonant (for H).

i.e. *mik + *sādu₂l → *miQsādu₂l

Bahudic is divided into three stages: Early Kingdom Bahudic, Middle Kingdom Bahudic, Late Kingdom Bahudic, and vulgar Bahudic(s). This post will be on classical Bahudic. It is a literary form of Middle Kingdom Bahudic, attested in the city of Bahud.

The Phonology of Classical Bahudic is as follows:

Consonants:

Fortis: p, t, ṯ¹, k

Lenis: b, d, ḏ², g

Nasals: m, n

Fricatives: s, ḥ³, h⁴

tap/flap: r

Liquids: l, j, w

1 : It was probably /cʰ/, but in modern liturgies, it is /tʰ/ (Bahudic standard), or /kʰ/ (Sahidic Standard)

2: It was probably /c/, but in modern liturgies, it is /t/ (Bahudic standard), or /k/ (Sahidic Standard)

3 : probably /ħ/, but in modern liturgies, it is /ʔ/ (Bahudic standard), or /h/ (Sahidic Standard)

4 : probably /h/, but in modern liturgies, it is unpronounced (Bahudic standard), or /h/ (Sahidic Standard)

Vowels:

High: i, u

Low: a

there is length distinction. Long vowels are marked by a macron.

Sahidic Standard, rather oddly, has different set of vowels. This might be due to the fact that Sahidic lacks long vowels in general.

High: i, u

Mid: e, ə, o

Low: a