Blimey: That's a lot of fiddling with letters!

English generally does not use formal sound change notation because the sound is already within the word when it is spoken, written or whatever.

My mother (born and died: Devon, England, UK, 1942-1997) could make herself sound almost incomprehensible to me, one of her own sons by speaking in the Devonian of her childhood.

Language is constantly moving and changing. You will almost certainly have your parents whining that you speak in ... tongues. When I say you ... I mean you!