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U2141B
CX is a noise reduction system for recorded analog signal, analog audio. It was developed by CBS Laboratories (a division of CBS) in the late 1970s as a low-cost competitor to other noise reduction (NR) systems such as dbx disc and High-Com II, and was officially introduced in 1981. The name ''CX'' was derived from "Compatible eXpansion", a feature of the technique. __TOC__ Use on vinyl LP records CX was originally designed by CBS as a noise-reduction technology for vinyl LP records, similar to the earlier dbx disc (based on dbx II) and High-Com II systems, but, like the later UC (noise reduction), UC system, it aimed at the lower-cost consumer mass market rather than high-end audiophile niche markets only. CX-encoded records required a special CX expander connected to a stereo system, in order to fully reproduce the CX encoded sound on the LP. However, in contrast to dbx disc and High-Com II, CX-encoded records, like UC-encoded records, could also b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-Com II
The High Com (also as HIGH COM, both written with a thin space) noise reduction system was developed by Telefunken, Germany, in the 1970s as a high quality high compression analogue compander for audio recordings. High Com The idea of a compander for consumer devices was based on studies of a fixed two-frequency band, band compander by Jürgen Wermuth of AEG-Telefunken ELA, Wolfenbüttel, developer of the Telefunken (formally abbreviated as "TEL" in professional broadcasting) four-band audio compander for professional use. In April 1974, the resulting "RUSW-200" prototype first led to the development of a sliding two-band compander by Ernst F. Schröder of Telefunken Grundlagenlaboratorium, Hannover since July 1974. However, the finally released High Com system, which was marketed by Telefunken since 1978, worked as a broadband 2:1:2 compander, achieving almost 15 Decibel, dB of noise reduction for low and up to 20 dB Root ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
