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VOICE DISORDERS

Including Vocal Pitch, Volume, and Quality​

Defined: Optimal voice production is based upon intact anatomy and phsiology of the larynx and surrounding structures. The human voice undergoes certain changes throughout the life span; between birth and death, everyone experiences vocal changes.



Vocal Pitch













Volume









Quality



  • The frequency at which the vocal folds vibrate.
  • Pitch is determined by mass, tension and elasticity of the vocal folds (Higher pitch is generally when vocal folds are thinner, more tense or both)
  • Also known as intensity or loudness
  • Lung capacity can effect a speakers volume
  • Also known as compexity of the laryngeal tone. Characteristics may include:
  • Hoarseness- breathy, low-pitched, and husky quality
  • Harshness- rough, unpleasant, and gravelly sounding
  • Stain-Strangle- labored, effortful, tense sounding
  • Breathiness- occurs when the vocal folds do not fully touch during verbalizations, soft sounding and limited vocal range
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