She very much did not. And the point is Sam said "we had no idea that voice sounded like her" when in reality they built it with that in mind.
reminds me of how he gets blamed for his sister wanting to renege on cutting herself out of their father's will, fortunately everyone seems to see through that charade
That was declined ...
It appears they continued w/out her using a voice so close that close friends are unable to tell the two voices apart.
"Accidently" indistinguishable is not a thing.
See: https://news.ycombinator.com/item?id=40421564 for another comment that hammers that point.
Are you being serious?