For FM quadruplex transmission, the QMX matrix provides mono-stereo compatibility with 4-2-4 (BFMX), 4-3-4 (TFMX), and 4-4-4 (QFMX) options. The channels of TFMX occupy frequency bands identical with those for present stereo multiplex. The fourth (Q) channel may, with negligible psychoacoustic consequence, be omitted to accommodate a subsidiary communications (SCA) channel.
Author:
Cooper, Duane H.
Affiliation:
University of Illinois, Urbana, IL
JAES Volume 22 Issue 2 pp. 82-87; March 1974
Publication Date:
March 1, 1974
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