Photo by Marc Brenner This will always be known as the Macbeth with headphones – at least you don’t have to worry about theatre coughers. “Binaural” sound, in its recorded form, uses a microphone shaped like a human head with a pick-up in each of its ears. Gareth Fry won a Tony Award for his sound design on Complicite’s 2022 production of The Encounter, which retold the story of a National Geographic photographer lost in the Javari Valley in Brazil and wrapped punters’ heads in an immersive world of tree frogs and mosquitoes. The most commonly heard sound effect on...