I was wondering what a voice crack is and how it happens.
In: Biology
Voice teacher here- all the comments about registers are correct. Mechanically, when you are on your chest register- the register that most of us speak in- the vocal cords like to be thicker and shorter, but in head register, the chords like to be longer and thinner. Singers learn how to transition smoothly brown those registers. When that transition isn’t smooth, the cords snap to a position rather than gradually transition- that’s a voice crack. Sometimes that happens because a singer is purposefully delaying a transition too long, sometimes it happens normally as part of thier training as the cords are building the muscle memory and the precision to do this.
In male puberty, because of the change in size of the larynx and the vocal cords, the chords are trying to figure out to to work, so those sudden transitions happen. When you’re sick or you overuse your voice, the chords are tired so they can’t transition as easily
Hopefully that helps!
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