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Hypophonia is soft speech, especially resulting from a lack of coordination in the vocal musculature.[1] This condition is a common presentation in Parkinson's Disease.[2] This condition is generally treated with voice training programs, use of shorter sentences, breathing exercises, and muscle training exercises for vocal cords.[3][4]

Further ResearchEdit

Doctors at the Indiana University of Pennsylvania have proposed a novel treatment for hypophonic voice: Twang therapy.[5]


  1. Hypophonia. Online Medical Dictionary. URL accessed on 2012-06-05.
  2. Ho, Aileen K. Ph.D.; Iansek, Robert M.B.B.S., Ph.D., F.R.A.C.F.; Bradshaw, John L. M.A., Ph.D., D.Sc (2001). Motor Instability in Parkinsonian Speech Intensity. Neuropsychiatry, Neuropsychology & Behavioral Neurology 14 (2): 109–116.
  3. Parkinson's Disease = Nonpharmacologic Treatments. We Move. URL accessed on 2012-06-05.
  4. Hypophonia in Parkinson’s disease.
  5. A novel treatment for hypophonic voice: Twang therapy.

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