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.
https://www.aes.org/e-lib/browse.cfm?elib=2784
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.
Learn more about the AES E-Library
Start a discussion about this paper!