Hyponasal voice is seen in all except
Adenoids
Nasal Polyp
Cleft palate
Habitual
Causes of hyponasality are Common cold Nasal allergy Nasal polyp Nasal growth Adenoids Nasopharyngeal mass Familial speech pattern Habitual Ref: PL Dhingra; Textbook of EAR, NOSE and THROAT; edition 7; Page - 357
Larynx