12.29 FunFact - On this day in 1982, Dolby Labs launched its "Dolby Surround" matrix technology for home use. It brought ".....an immersive, multi-speaker movie experience from theaters to living rooms, although it was still a 2-channel matrixed system needing processors for 4 speakers (L, R, Mono Surround), paving the way for later discrete formats like Dolby Pro Logic and 5.1. Used phase-shifting tricks to extract surround information from two channels, requiring a decoder (often built into VC

The History of Dolby

Inside Dolby’s New Surround Sound