QMX Carrier-Channel Disc

Cooper DH, Shiga T, Takagi T. QMX Carrier-Channel Disc. J Audio Eng Soc. 1973;21(8):614-624. Available from: https://aes.org/publications/elibrary-page/?id=1944

@article{Cooper1973_1944,
  author = {Cooper, Duane H. and Shiga, Takeo and Takagi, Toshihiko},
  title = {{QMX Carrier-Channel Disc}},
  journal = {Journal of the Audio Engineering Society},
  volume = {21},
  number = {8},
  pages = {614--624},
  year = {1973},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=1944}
}

TY  - JOUR
TI  - QMX Carrier-Channel Disc
AU  - Cooper, Duane H.
AU  - Shiga, Takeo
AU  - Takagi, Toshihiko
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 21
IS  - 8
SP  - 614
EP  - 624
PY  - 1973
DA  - 1973/10/06
UR  - https://aes.org/publications/elibrary-page/?id=1944
PB  - Audio Engineering Society
LA  - en
AB  - UMX matrices provide optimal-localization directivity patterns with balance-invariant symmetry and orientation. These advantages over sum-difference matrixing permit specification of two low-distortion low-noise noncompandor narrow-band FM channels for linear time-invariant combination with optimal mono-stereo compatible baseband matrix channels. Development of this discrete-matrix QMX disc, with audio bandwidth to 18 kHz, top frequency below kHz, and simplified cutting, processing, and playing, is described.
ER  -