Could YOU spot a deepfake? Scientists find humans struggle to detect AI speech even when they've been trained to look out for it

Humans are unable to detect over a quarter of speech samples generated by AI, researchers have warned. Deepfakes are fake videos or audio clips intended to resemble a real person's voice or appearance. There are growing fears this kind of technology could be used by criminals and fraudsters to scam people out of money. Now, scientists have discovered people can only tell the difference between real and deepfake speech 73 per cent of the time. While early deepfake speech may have required thousands of samples of a person's voice to be able to generate original audio, the latest algorithms can recreate a person's voice using just a three-second clip of them speaking.