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Resonance disorders occur when there is an imbalance in oral and nasal sound/airflow during speech. This can result in speech that sounds “nasal,” muffled, or unclear.
Resonance differences can be related to:
Structural factors (e.g., cleft palate–related velopharyngeal insufficiency, post-surgical changes, adenoid/tonsil issues, nasal obstruction), and/or
Neuromuscular factors (e.g., dysarthria related to neurological conditions), and/or
Learned speech patterns (velopharyngeal mislearning / phoneme-specific nasal emission).
At Palms Physiotherapy & Allied Health, our speech pathologists assess resonance concerns and provide therapy for learned/active speech errors. Where a structural cause is suspected, we support timely referral and shared care with the appropriate ENT/cleft/medical team.
Resonance differences may include:
Hypernasality: Excess nasal resonance during speech. This may occur with conditions such as cleft palate or velopharyngeal dysfunction (VPD).
Hyponasality: Reduced nasal resonance (speech sounds “blocked”), often seen with nasal obstruction or enlarged adenoids.
Mixed nasality: Features of both hypernasality and hyponasality.
Cul-de-sac resonance: Sound is trapped due to obstruction (oral, nasal, or pharyngeal).
Resonance differences can be associated with:
Cleft palate (with or without cleft lip) or other craniofacial differences
Velopharyngeal dysfunction (VPD), including velopharyngeal insufficiency (VPI)
Neurological conditions (e.g., stroke, cerebral palsy, Parkinson’s disease) impacting speech motor control
Enlarged adenoids/tonsils
Nasal obstruction (e.g., chronic congestion, polyps, deviated septum)
Understanding the likely underlying cause helps determine whether therapy, medical management, or shared care is most appropriate.
Symptoms can vary, but may include:
Speech that sounds overly nasal or “blocked/muffled”
Reduced clarity (intelligibility) in conversation
Audible nasal air escape on certain sounds
Inconsistent sound production
Communication frustration due to being difficult to understand
Management depends on the cause:
If resonance differences are related to learned speech patterns (velopharyngeal mislearning/phoneme-specific nasal emission), therapy can be very effective.
If resonance differences are related to a structural issue (e.g., cleft palate–related VPI), therapy cannot change the anatomy. In these cases, we focus on assessment, referral to the appropriate medical/cleft team, and shared-care support, alongside any articulation therapy indicated.
Biofeedback tools (e.g., nasometry) may be used when clinically appropriate to support therapy goals identified by the treating clinician and/or cleft team.
Our goal is to enhance speech clarity, voice quality, and overall communication within an evidence-based, shared-care framework.
Early assessment and support can help to:
Identify whether resonance concerns are more likely structural vs learned
Reduce the risk of developing compensatory speech patterns
Support timely referral for specialist assessment when needed
Improve communication outcomes when therapy is indicated
Depending on the underlying cause and goals, therapy may include:
Evidence-based articulation therapy for compensatory/learned speech errors
Auditory and visual feedback to support accurate sound production
Tactile cues (when appropriate) to support placement and airflow awareness
Collaboration with medical/cleft teams to ensure the plan aligns with specialist recommendations
Speech pathology support for resonance concerns may suit:
Children or adults with learned resonance-related speech errors
People with neurological conditions impacting speech motor control (where resonance is part of a broader dysarthria profile)
Individuals requiring assessment and referral coordination for suspected structural causes (ENT/cleft review)
Post-surgical patients (in collaboration with their surgical team) who require articulation therapy and communication support
Speech Therapy (also called Speech Pathology) focuses on assessing, diagnosing, and treating communication and swallowing difficulties. At Palms Physiotherapy & Allied Health, our speech pathologists support children, teens, and adults to improve speech clarity, language skills, social communication, voice and fluency and swallowing safety.
Speech therapy can help with a wide range of concerns, including:
Speech delays in children: Supporting speech sound development, clarity, and age-appropriate communication.
Speech sound disorders: Including articulation (sound production) and phonological (sound patterns) difficulties.
Language disorders: Helping with both receptive language (understanding) and expressive language (using words and sentences).
Swallowing and feeding difficulties (dysphagia): Supporting people who have difficulty swallowing safely due to conditions such as stroke, traumatic brain injury, or neurological conditions.
Social communication differences: Supporting conversational skills, turn-taking, perspective-taking, and understanding non-verbal communication.
Stuttering and fluency disorders: Helping clients manage fluency, reduce effort/tension, and build confidence in communication.
Paediatric speech therapy supports children with speech, language, communication, and early literacy needs using evidence-based and child-friendly approaches. Sessions may be play-based (especially for younger children), while still being structured and goal-directed.
Common areas we support include:
Adult speech therapy supports adults with communication and swallowing needs related to neurological conditions, injury, medical events, or age-related changes. Therapy is practical, functional, and designed around everyday participation (home, work, community).
Common areas we support include:
NDIS speech therapy is available for self-managed and plan-managed participants. Therapy may focus on functional communication goals, speech clarity, social interaction and participation, and AAC support where required. We collaborate with participants, families, support coordinators, schools, and relevant providers to support practical, meaningful outcomes.
Dysphagia (swallowing) support helps when swallowing difficulties affect hydration, nutrition, safety and confidence with eating and drinking. Our speech pathologists can complete clinical assessments (as appropriate), provide strategies for safer swallowing, recommend targeted exercises when indicated, and support shared-care referral pathways with GPs/ENT/medical teams when needed.
Experienced Speech Pathologists: Skilled in paediatric and adult communication and swallowing support.
NDIS Provider (self- and plan-managed): Therapy is aligned to participant goals and everyday function.
Family-Centred Approach: We involve parents, carers, and supports where appropriate so strategies carry over into real life.
Collaborative, Multidisciplinary Care: We work alongside our broader allied health team when integrated support is beneficial.
Our sensory room and kids therapy gym can support therapy goals through a motivating, functional environment—particularly helpful for children who benefit from movement-based learning and sensory regulation strategies. These spaces may be used when clinically relevant to support engagement, attention, participation, and goal progress.
We offer speech pathology services in Perth, including our Malaga and Noranda clinics.
At Palms Physiotherapy & Allied Health, our experienced team is here to help children and adults manage their sensory condition and improve their quality of life.
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For more information on resonance disorders and therapy options, here are some valuable Australian resources:
CleftPALS WA – Provides support and resources for individuals with cleft palate and related speech issues in Western Australia.
www.cleftpalswa.org.au
Speech Pathology Australia – Information on resonance disorders and certified speech pathologists across Australia.
www.speechpathologyaustralia.org.au
Better Health Channel – Detailed information on resonance disorders, causes, and treatments.
www.betterhealth.vic.gov.au
Healthdirect Australia – Provides trusted health information, including on speech and resonance disorders.
www.healthdirect.gov.au
The Australian Voice Association – Offers educational resources and support for individuals with voice and resonance disorders.
www.australianvoiceassociation.com.au
Important disclaimer: This webpage contains general information only and is not intended to be relied upon as personal clinical advice. While we aim to keep information accurate and up to date, it may not reflect the most current research or your individual circumstances. Palms Physiotherapy & Allied Health does not accept liability for decisions made based on this information without an individualised assessment by an appropriately qualified health professional. If you have concerns, please contact us to book an assessment or speak with your GP/medical team.
If you’re unsure which facility, service, or technology is the right fit, our team can guide you based on your goals and presentation.
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