FMX
FMX may stand for:
FMX (broadcasting)
FMX is the name of a commercially unsuccessful noise reduction system developed in the 1980s for FM broadcasting in the United States.
FM stereo broadcasting is known to incur up to a 23 dB noise penalty over that of monophonic FM broadcasting; this is due to the combination of the triangular FM noise spectrum and the wider baseband bandwidth occupied by the stereo multiplex signal. Developed at the CBS Technology Center, FMX was intended to improve this characteristic for listeners in the fringe areas where the noise penalty would be worst. This improvement was achieved by adding an amplitude-compressed version of the L−R (left-minus-right, or difference) signal modulated in quadrature with the stereo subcarrier, using a version of the CX noise-reduction system originally developed at CBS for LP records.
Upon his accession as Chairman of CBS, Laurence Tisch closed the CBS labs in 1986, whereupon the FMX intellectual property was spun off to an investment group, under the name Broadcast Technology Partners (BTP).
Podcasts:
FMX
ALBUMS
- Dog 2 Remixes released: 2005
