Pretty straightforward i think, have at it.
In: Biology
Your voicebox is made of two flaps of tissue called vocal cords that vibrate together to make sound. One way you can change your voice is by controlling how tightly the two flaps come together. When the vocal cords don’t meet each other fully, you can get this breathy, hooty sound that some people call falsetto.
When your voice cracks, your vocal cords were meant to come together nicely, but something goes wrong and they fall apart for a split second, causing a “crack” that sounds a bit like a falsetto.
Different things can cause cracks, but most of it boils down to instability. A growing voicebox, a voicebox that’s inflamed or damaged, straining your voice too hard etc.
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