In a child with hyperophied adenoids, the voice abnormality that is seen is
High-Yield Explanation
HYPONASALITY (RHINOLALIA CLAUSA) It is lack of nasal resonance for words which are resonated in the nasal cavity, e.g. m, n, ng. It is due to blockage of the nose or nasopharynx. Ref:- Dhingra; pg num:-315