A system of two way communications amongst the performance crew, each who wears a set of headphones with or without a boom microphone (UK) Also Cans
The system which allows the engineer to talk into a microphone in the control room and have his voice come over the studio monitors and/or headphones so he can talk to the musicians
On a mixer, the input (usually located on the fascia) that enables the sound engineer to yell at people through the loudspeaker system Some mixers have comprehensive talkback systems whereby the engineer can address any of the aux sends or any of the groups individually and yell at individual groups of people through individual loudspeaker systems
an electronic system used in a film or television studio, so that someone can talk to someone else without other people hearing them
{i} discussion forum on the Internet which appears at the bottom of an article or news item or other (wherein readers/surfers may write their response)