Özet:

Mutation is the period in which, along with the beginning of adolescence, parallel to other changes in the body, a dramatic process of change occurs in the voice. In this process, when the sound character is formed, it can face various difficulties. As the growth in the vocal organs does not occur at the same rate, it is also difficult to control the sound. Knowing the difficulties and the characteristics of the sound during this period is very important in terms of showing the appropriate approach. The voice change varies from person to person, and students who live different stages in the same class can be found. Therefore, it is important to identify the stage in which the sound is located and to classify it properly. Until the mutation process, children’s sounds are classified as alto or soprano. However, in this temporary stage, children’s sounds must be subject to a new classification until they gain the female or male sound characteristics. In this collection, it was attempted to focus on how the sounds of children in the period of mutation were classified. The importance of using a classification method in accordance with the phases of sound change has been revealed.

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