You may have noticed that people who are deaf sound a little different than people who aren’t deaf.
It’s not easy to explain the difference, as it depends on the individual person.
In other words, their voices cannot be identified as coming from a deaf person.

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Speech intelligibility is a frequent topic in deaf-related journals.
The author’s study involved 19 deaf children.
The author was looking for any relationship between speech intelligibility and how the deaf children felt about themselves.
Coelho AC, Medved DM, Brasolotto AG.Hearing Loss and the Voice.Update On Hearing Loss.
2007;12(4):495-503. doi:10.1093/deafed/enm015