Convention Paper
Ambisonics in Multichannel Broadcasting and Video
AES Convention 74 · Paper 2034 · October 1983
Abstract
The FCC's effective deregulation of FM multichannel broadcasting standards, and the advent of multichannel audio via satellite, cable, and video systems, poses the question of the most effective use of three or four related audio channels. The Ambisonic UHJ hierarchy for transmitting total sound fields offers more varied mutually compatible applications than other proposals (e.g., quadraphonics), with options up to and including full-sphere ("periphonic") directional reproduction. These options are detailed, including mono, stereo, 2-, 2-1/2-, 3-, and 4-channel horizontal surround encoding, 4-channel periphony, and a range of user sound field adjustments in stereo and psychoacoustically optimized surround-sound reproduction modes.
