在青春期前,男孩、女孩的声音几乎是不存在声音本质上差别的。到了青春期,男孩出现了高音发声的困难且持久力差、音域也显著下降,声音粗哑、胸声增多、音色变暗等明显的变化,音域先是变窄而后变宽:女孩开始由于声带充血而声音涩滞,后期逐渐变得圆润且音域渐趋宽广,尤其是在音色方面具有了女性特有的特点。这种身心发育成长期中的声音变化现象称作“变声”,而变声(包括前期、中期和后期)的整个过程称作“变声期”。这是男孩女孩都必须经历的、身心向成熟期过渡的阶段。变声期出现时期的早晚,受多种因素的影响。一 Before adolescence, boys, girls, the sound is almost non-existent sounds are essentially different. To adolescence, the boy appeared treble sound difficulty and persistent poor voice range also dropped significantly, the sound is dull, the chest increased, the sound dimming and other obvious changes, the sound field first narrowed and then widened: the girl began to vocal cord hyperemia sound Astringent stagnation, later gradually become rounded and gradually wide range, especially in the timbre has a female-specific features. The phenomenon of sound changes during this period of physical and mental development is called “vocal change”, and the whole process of vocal changes (including early, middle and late) is called “vocalization.” This is a stage where boys and girls must go through the transition from maturity to maturity. Change the sound period appears sooner or later, by a variety of factors. one