Now You're Talking

We judge others - and whether we trust them - not just by their words but by the way they talk: their intonation, their pitch, their accent.Now You're Talking explores the full range of our voice - how we speak and how we sing

Trevor Cox talks to vocal coaches who help people to develop their new voice after a gender transition; to record producers whose use of technology has transformed the singing voice; and to computer scientists who replicate the human voice in their development of artificial intelligence.