[alpaca128]

People speak differently in different situations, based on their mood and who they are talking to. They may change their voice when quoting another person, they may alter their accent if talking to a stranger, and there's many other details you don't even think about because you're used to them but it'll immediately sound wrong if it's not replicated correctly.

Apple's announced voice imitation feature requires a 15 minute sample if I remember correctly, and you can bet it would be shorter if they were satisfied with the results.

> if in that 3 seconds it hears you say y'all

I can guarantee that no 3 seconds of text of your choosing will ever be enough to reliably differentiate between all existing dialects and accents, let alone differences between individual people.

There's a reason all the decent fake voice clips on the web are based on public figures with hours of training material - and even with those you can tell within seconds that it's fake, even if you don't know how you noticed it.

[sangnoir]

> even with those you can tell within seconds that it's fake, even if you don't know how you noticed it.

Salesmen and scammers have many techniques to get people to act against their better judgement. Urgency is one: imagine a late night voice call seemingly from a loved one saying "I'm stranded, my battery is about to die. Please send the money now -" accompanied by loud environmental noises to mask any artifacts