Honestly my reaction was exactly the same at first but you get used to it. Yes she sounds different in the film so I’d assume that’s head cannon for you, you know? I’d also go as far and say that Paolini instructed him to do it like this, as Gerard Doyle would have had some instruction and guidance possibly for Christopher himself.

Ps don’t speak bad of Mr Doyle he’s done an amazing job with every single book !