- CMX Systems
CMX Editing Systems (also known as CMX Systems) was a company founded jointly by
CBSand Memorex, that developed some of the very first computerized systems for linear and non-linear editing of videotapefor post production. The company's name, CMX, stood for CBS, Memorex, and eXperimental.
Sunnyvale, California, the company pioneered in integrating computers with videotape editing, starting in 1971 with the CMX 600, the first non-linear video editing system. The 600 was designed primarily for off-line editing, by creating both a rough edit of a video program, along with an edit decision list, or EDL. It stored its video & audio content on disk packdrives supplied by Memorex for instant random access of the video content. The 600 was paired with the CMX-200, which took the edit decision list created by the 600, and automatically controlled several VTRs to auto-assemble the final program. The 600 was controlled using a Digital PDP-11minicomputer, and the 200 used a Teletypemodel ASR-33terminal to input EDLs from the 600.
CMX also developed the CMX-300 in
1972, a system used for on-line editing (and CMX's first on-line product). It was a computer-controlled linear editing system, with support up to four VTRs, and also included and controlled a simple video mixer for wipes and fades. The edits were input to the 300 (and displayed) using a Digital VT-05terminal.
CMX would later develop more advanced systems such as the 340 in
1976, and the CMX Edge, which could be used for both on and off-line editing.
CMX was sold to
Orroxin 1974, and then moved its headquarters to Santa Clara, California. It was then later purchased by Chyron, and remained under its ownership until 1998, when Chyron announced that it would discontinue all CMX products.
During the mid-1980s, CMX hardware consisted of 90% of all video editing systems used for post-production video editing.
The CMX keyboard control style was used as a basis of several other editing systems, including Grass Valley, Calaway and Strassner Editing Systems.
Strassner Editing Systems, one example of other "CMX Style", PC-based editing systems
See External Links below.
* [http://www.sssm.com/editing/museum/cmx/cmx.html A page on CMX's products]
* [http://www.smpte-ne.org/articles/eulogy.html An article on the demise of CMX]
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