Hypernasality

Some articles on hypernasality:

Nasality
... In some types of abnormal speech, the term nasality, or more formally hypernasality, refers to an auditory impression about the speech, and is not a ... Hypernasality is generally segmented into so-called 'resonance' effects in vowels and some voiced or sonorant consonants and the effects of excess nasal airflow during those consonants ... It is extremely difficult to separate the acoustic effects of hypernasality from the acoustic effects of mispronounced vowels (examples) ...
Digeorge - Cognitive and Language Problems - Speech and Language
... Common problems include hypernasality, language delays, and speech sound errors ... Hypernasality occurs when air escapes through the nose during the production of oral speech sounds resulting in reduced intelligibility ... Hearing loss can also contribute to increased hypernasality because children with hearing impairments can have difficulty self monitoring their oral speech output ...
Pharyngeal Flap Surgery - Outcomes
... improvements, pharyngeal flap surgery may help eliminate hypernasality, nasal turbulence, and facial grimacing (Tonz et al ... flap surgery vary among each individual in regards to improvements in hyponasality, hypernasality, nasal turbulence, voice quality, articulation, and intelligibility (Tonz et al ... It is possible that hypernasality can be a side effect of pharyngeal flap surgery, however hyponasal speech occurs more frequently after a successful surgery (Liedman-Boshki et al ...