In Turkic written language there are eight vowel sounds «а,е,о,ұ,ө,ү,ы,і». These eight vowels are marked with four signs compactly. They were used to distinguish a word or its endings. The vowels occur rarely in the root of the word. For example, in words «бар», «бер» - «БР» is marked in two forms: hard and soft. Labial vowels in words «бор, бұр» are marked «Б-о//ұ-Р», in words «бөр,бүр» as «Б-ө/ү-Р», in word «быр» as «Б-ы-Р», in word «бір» as «Б-і-Р».
In the middle or in the end of the word, especially in endings of a form «а/е», «о/ұ», «ө/ү», «ы/і» vowels were marked only with four signs.

Vowel sounds were not marked often. Vowels corresponding to sounds О, Ұ, Ө, Ү had been written in the root of a word. Sounds corresponding to sounds А, Е, Ы, І are not often met in the beginning of a word. They are used in the end of a word.
 Interpretation of each sound includes such parts as Reading, Differentiation, Place, and Transcription.
What is Reading?
There is an interpretation about reading of signs in accordance with the signs of modern Kazakh language.
What is Differentiations?
 There is an interpretation about how to distinguish and recognize signs while reading.
What is a Place?
Some signs are added whether in the beginning or in end of the word. The knowledge of this rule will help in recognizing the sign. Conclusions are made here on statistic control of gathered data about the place of a sign in database.
Transcription