noun, noun or participle which takes 'suru', intransitive verb
voice change (during puberty); breaking of the voice
Refers to the deepening and cracking of the voice that typically occurs in adolescent males. Used both as a noun and as a suru-verb (声変わりする).
中学生のとき、声変わりが始まった。
My voice started to change when I was in junior high school.
彼は声変わりして、低い声
His voice broke and became deep.