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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 research[edit]

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


  1. ^ "Hypophonia". Online Medical Dictionary. Retrieved 2012-06-05.
  2. ^ Ho, Aileen K.; Iansek, Robert; Bradshaw, John L. (2001). "Motor Instability in Parkinsonian Speech Intensity". Neuropsychiatry, Neuropsychology & Behavioral Neurology. 14 (2): 109–116.
  3. ^ "Parkinson's Disease = Nonpharmacologic Treatments". We Move. Archived from the original on 2012-04-06. Retrieved 2012-06-05.
  4. ^ "Hypophonia in Parkinson's disease".
  5. ^ Lombard LE, Steinhauer KM. "A novel treatment for hypophonic voice: Twang therapy". J Voice. 21 (3): 294–9. doi:10.1016/j.jvoice.2005.12.006. PMID 16527452.