The RCA Quadulator

Bogantz GA, Wells JF. The RCA Quadulator. J Audio Eng Soc. 1977;25(3):99-106. Available from: https://aes.org/publications/elibrary-page/?id=3385

@article{Bogantz1977_3385,
  author = {Bogantz, Gregory A. and Wells, Joseph F.},
  title = {{The RCA Quadulator}},
  journal = {Journal of the Audio Engineering Society},
  volume = {25},
  number = {3},
  pages = {99--106},
  year = {1977},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=3385}
}

TY  - JOUR
TI  - The RCA Quadulator
AU  - Bogantz, Gregory A.
AU  - Wells, Joseph F.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 25
IS  - 3
SP  - 99
EP  - 106
PY  - 1977
DA  - 1977/03/06
UR  - https://aes.org/publications/elibrary-page/?id=3385
PB  - Audio Engineering Society
LA  - en
AB  - Cutting of master lacquers for discrete quadraphonic (CD-4) records requires a device for obtaining sum and difference signals, a method of angular modulation of the 30-kHz carrier and associated signal processors. A new modulation system using phase-lock loop circuitry will be described which results in wider dynamic range and lower distortion than previous techniques, and is of far simpler construction. Careful examination of the subjective effect of individual signal processors has led to a further reduction in side and complexity.
ER  -