变声期的初级阶段一般是在12～15岁之间,后期阶段为16～18岁之间完成整个变声过程。由于生理上的变化引起发声器官加速发育,在此期间如果发声不当,无限制地过多、过长、过高、过低地大声吼叫,就会使发声器官某一部分特别发达,造成整个发声器官失去平衡,导致嗓音异常,成年之后更 The initial stage of the vocal period is generally between 12 and 15 years old, the latter stage of 16 to 18 years to complete the entire process of changing sound. As the physiological changes caused by the accelerated development of vocal organs, during this period if the vocal improper, unlimited too much, too long, too high, too low to loud roar, it will make a particular part of the vocal organs particularly developed, resulting in the vocal organs lost Balance, leading to abnormal voice, more adult