Azimuthal harmonic synthesis generates a universe of matrices (UMX) with maximal input-output azimuthal correlations for two (BMP), three (TMX), four (QMX), etc., intermediary channels. The basic mono-stereo-compatible BMX accepts augmentation channels converting to TMX, QMX, etc., In quadrasonics, the psychoacoustically discrete TMX essentially equals the fully discrete QMX. The feasibility of multichannel disc, broadcast, and tape is profoundly enhanced by the sufficiency of using 2-kHz-wide augmentation channels.
Cooper, Duane H.; Shiga, Takeo
Affiliations: University of Illinois, Urbana, IL; Nippon Columbia Company, Ltd., Kawasaki, Japan(See document for exact affiliation information.)
JAES Volume 20 Issue 5 pp. 346-360; June 1972
Publication Date: June 1, 1972
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