QFMX-Quadruplex FM Transmission Using the 4-4-4 QMX Matrix System

Cooper DH. QFMX-Quadruplex FM Transmission Using the 4-4-4 QMX Matrix System. J Audio Eng Soc. 1974;22(2):82-87. Available from: https://aes.org/publications/elibrary-page/?id=2784

@article{Cooper1974_2784,
  author = {Cooper, Duane H.},
  title = {{QFMX-Quadruplex FM Transmission Using the 4-4-4 QMX Matrix System}},
  journal = {Journal of the Audio Engineering Society},
  volume = {22},
  number = {2},
  pages = {82--87},
  year = {1974},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=2784}
}

TY  - JOUR
TI  - QFMX-Quadruplex FM Transmission Using the 4-4-4 QMX Matrix System
AU  - Cooper, Duane H.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 22
IS  - 2
SP  - 82
EP  - 87
PY  - 1974
DA  - 1974/03/06
UR  - https://aes.org/publications/elibrary-page/?id=2784
PB  - Audio Engineering Society
LA  - en
AB  - 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.
ER  -