<unk>  is a disorder that causes abnormal resonance in a human's voice due to increased airflow through the nose during<unk> . It is caused by an open nasal cavity resulting from an incomplete closure of the soft palate and/or velopharyngeal sphincter. In normal<unk> , nasality is referred to as nasalization and is a linguistic category that can apply to vowels or consonants in a specific language. The primary underlying physical variable determining the degree of nasality in normal<unk>  is the opening and closing of a velopharyngeal passage way between the oral vocal tract and the nasal vocal tract. In the normal vocal tract anatomy, this opening is controlled by lowering and raising the velum or soft palate, to open or close, respectively, the velopharyngeal passageway.
Hypernasal speech
Stilted speech
Compulsive hoarding
Alaryngeal speech
Speech delay
Nasal voice
Hoarse voice
Receptive aphasia