That means, for example, that a blind person listening to a Welsh language text will hear the voice of the same ‘person’ as it were, when they then listen to an English article.
Bydd hyn yn golygu, er enghraifft, bod person dall sy’n gwrando ar destun Cymraeg yn dal i glywed llais yr un ‘person’ fel petai, pan maen nhw’n mynd i ddarllen erthygl Saesneg.