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A voice change or voice mutation, sometimes referred to as a voice break or voice crack, commonly refers to the deepening of the voice of men as they reach puberty.Before puberty both sexes have roughly similar vocal pitches, but during puberty the male voice typically deepens an octave, while the female voice usually deepens only by a few tones.
The vocal folds of children are much shorter than those of adult males and females. The difference in vocal fold length and thickness between males and females causes a difference in vocal pitch. Additionally, genetic factors cause variations between members of the same sex, with males' and females' voices being categorized into voice types .
One of the major perceptual signs of vocal fold nodules is a change in the quality of the voice. [1] The voice may be perceived as hoarse, [4] [5] due to aperiodic vibrations of the vocal folds, [5] and may also be perceived as breathy, [4] [5] due to an incomplete closure of the vocal folds upon phonation.
The swelling of the vocal folds causes the voice to become deep and hoarse. Therefore, the major symptom of Reinke's edema is a hoarseness similar to laryngitis. The major cause associated with Reinke's edema is smoking. In fact, 97 percent of patients diagnosed with Reinke's edema are habitual smokers.
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Puberphonia is a functional voice disorder [citation needed]. To rule out problems in the structure of the larynx as the cause of their voice issues, patients are often referred to otorhinolaryngologists for a physical examination of the larynx and vocal folds. Once physical pathologies are ruled out, a behavioural evaluation can occur. [6]
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Abductor spasmodic dysphonia, the second most common type, causes a breathy voice or loss of voice. A rarer type, mixed spasmodic dysphonia, causes the voice to sound strained, tight and breathy.