The English speech sounds as the result of the sound change
The change includes the substitutions of sound [ θ] by sound [t], sound [ð] by
sound [d], and sound [z] by sound [s]. In apocope, which one type of deletion process, there were five sounds
which experienced the deletion process in the last words. They are the sound [t], sound [z], sound [d], sound [k], and sound [s].
In insertion process, there were two types which occur in the students’ pronunciation, they are anaptyxis and excrescence. In anaptyxis, there three
sounds which experience the anaptyxis process. They are the insertion of [a] sound, [
ə] sound, and [u] sound. While, in excrescence, there is only one sound which experiences the insertion process. There is the insertion of the sound [w].
In monohthongization process, there are three sounds which experience the sound change. They are the sound [a ] becomes [ ], sound [
ə ] becomes [ ], and the sound [e ] becomes [a].
In other findings, there were some sound changes which did not belong to the sound change phenomenon. The substitution of the sound [ ] by sound [u],
sound [ ] by sound [e], sound [ ] by sound [g], sound [ ] by sound [ ], sound [ ] by sound [ ,
ə] and the insertion of the sound [t]. 2. The English speech sounds as the result of the sound change
Based on the research findings in this study, the English sounds [a , o and e ] in the middle of the words would be change into the sounds [ , a, and e],
because English diphthongs might be realized as pure vowels by the students. The insertion of the vowel sounds [u], [a] and [
ə] and the consonant sound [w]. Those sound changes were caused by articulatory simplification.
Students were likely to drop the sounds [t, z, d, k, and s] in the final sounds, especially after other consonants because students were easy to pronounce
the English words where those final sounds occur. The other sounds which also substituted by the students were the sounds
[ θ, ð, ʒ, , , v, z, and f]. Those sounds were substituted by the sounds [t, d, s, s, t,
f, s, and p]. The most difficult sounds for students to pronounce were the sounds [z] and [v] in the final words. Students substituted those sounds by the sounds [s]
and [f]. These substitutions were easy the students to pronounce those English sound.
Spelling pronunciation is the cause of the other findings phenomena which occur in the students’ pronunciation. Students pronounce the English words as in
written form which could differ significantly from the way it is pronounced, as the substitution of the sound [ ] by sound [u] and [e], sound [ ] by sound [g], sound [ ]
by sound [ ], sound [ ] by sound [ , ə] and the insertion of the sound [t].