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Voice and Resonance Disorders

What are voice and resonance disorders?

Both children and adults may experience voice and resonance disorders. These may include one or more of the following symptoms:

  • hoarseness, strained, breathy or raspy vocal quality
  • discomfort upon voicing
  • inappropriate pitch
  • vocal fatigue after talking
  • reduction in vocal range during speaking and/or singing
  • hypernasality

In addition, voice disorders may result from Parkinson’s disease, spasmodic dysphonia, stroke, traumatic brain injury or other neurological disorders.

Resonance problems can result from structural issues or surgical interventions, such as cleft palate, submucous cleft or surgery requiring removal of structures used for speech.

Clefts of the lip/palate occur in approximately one in 750 newborns, making this deformity the fourth most-common birth defect and the first most-common facial birth defect. This population is at risk for speech, resonance (nasal-sounding voices) and hearing problems. Additionally, feeding an infant with a cleft palate can be challenging.

How can the UCF Communication Disorders Clinic help?

The Voice Care Center at the UCF Communication Disorders Clinic offers state-of-the-art voice evaluations and treatment. Clinical faculty members are distinguished service providers as well as dedicated teachers and researchers who prepare the next generation of speech-language pathologists.

What is the evaluation procedure at the UCF Communication Disorders Clinic?

The Voice Care Center at the UCF Communication Disorders Clinic provides comprehensive evaluations by experienced and certified speech-language pathologists. These evaluations include both instrumentation procedures as well as data collected from survey forms.

Evaluations may include:

  • laryngeal imaging
  • aerodynamic tests
  • acoustic analysis
  • auditory-based measures

Clients who have already received a voice evaluation at another location should send this report along with the UCF case history form to the UCF Communication Disorders Clinic. This will provide information about whether additional evaluation procedures need to be completed. In addition, clients need to send any relevant medical reports including radiological reports or IEP school records.

If you are a parent of a child who has a cleft lip and/or palate, comprehensive evaluations are available and include speech and language assessment, imaging of closure patterns between the soft palate and posterior wall of the pharynx (back of the throat), and resonance (nasality) measurement.

Please click on the link below to complete a case history form. The completed form can be faxed or mailed to the UCF Communication Disorders Clinic (see Contact Us). It cannot be sent back electronically due to privacy issues.

Voice Case History Form

Tell me about treatment at the UCF Communication Disorders Clinic.

Treatments for voice disorders may include, but are not limited to, the following:

  • resonance therapy
  • laryngeal massage and relaxation
  • Lee Silverman Voice Therapy for Parkinson disease and other neurologic disorders
  • vocal health and hygiene counseling
  • expiratory muscle strength training
  • rehabilitation for injured singing voice

For further information on voice and resonance disorders, visit:


To view a video aired on UCFTV:

1. Click on the image below
2. Select the topic “Health Professions”
3. Click on the link and go to the 01:51 minute mark

Hostetler on Zenith
Clinical Instructor Jane Hostetler discusses therapy for voice disorders associated with Parkinson’s disease on the "Zenith" show.

Please click on Research for an abbreviated list of our recent publications and research initiatives. Click on Outreach for a list of our community outreach affiliations.

Hear from clients and their families

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A client learns to project his voice.

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