sound change

sound shift
sound shift or root

Universal vocal affinities independent of specific regional sound changes:

A : A E I O U H R l m n : ain air al aph pha va av agh
B : V F P MB W ᵠHUO
C : CH K Q Z S Š G ⇨ DJ
D : T DZ DJ δ ⇨ S
E : A E I O U V W fe er el en we
F : V B PH P E W G!
G : CH K Z DJ Š C Q R
H : * A E I O U HR CH K G
I : A E I O U ain air il vi wi fi
J : I G DJ Š
K : C CH G Z DG
L : R N LL Y I A …
M : N MW MB lam
N : NG M L ain on vn nv
O : A E I O U H on or
P : B PH F V W
Q : KU CU G KV GV QR KR GR
R : A E L air
S : Š Z C CH SH ⇨ G J … δ TH ⇨ T D
T : D TH TZ δ ⇨ S …
U : A E I O U V W phu bu
V : F B PH P E
W : V F B PH P E
X : C KS K CH GH
Y : H G!
Z : C S TZ K DJ

Over the course of three millenia, most universal sound changes did occur in the Egyptian dialects.

There are some specific regional Egyptian sound changes (those which linguists adore) but most often it is best to think of sound distributions, in fact probability distributions, if one encounters an Egyptian sign. So instead of strictly reading 𓏏 as T, it is best to keep in mind that it also carried at least its natural partner distribution D T TH δ, if not phonetic values DZ DJ DS in certain dialects / epochs. D and T are the most stable.

In fact the Egyptian alphabet fell apart in very similar ways as the roman alphabet: Today the letter 'C' can be read as
K : curriculum as in kitty
S : center as in santa
Z : centaur as in tsunami (German reading)
Š : cevabcici as in short
SH,CH,GH : …

On the other hand some of the letters (Egyptian and Roman) which initially had different readings later collapsed:
C and K and Q have identical values in German (except for Fremdworte)
V and F have mostly identical values in German.

Some languages exhibit sound changes in transition, such as the ambivalence of μβ as m or b, or مطر as mbetar or mnepar or mlepar or mnetar or mletar

Partners

Less often indirect sound changes occur through partners. N Ñ NG ⇨ G R RW WR ⇨ W 𓍢 root,wurzel < WRZ/RWTS •wzerl Q KW W ⇨ V (lux,lupo,wolf<georg) PIE peculiarity G GH ⇨ F (enough) T δ ⇨ S K C ⇨ S (centum/satem)

The more dirty a sound is (broad fourier spectrum), the more it acts as a wildcard for other sounds.

As random mutations all sounds can be changed to other sounds for various reasons, mishearing, reconnection, ommision, reinterpretation, etc etc …