shauns@vice.UUCP (Shaun Simpkins) (05/16/84)
Sorry, but whatever Nak chooses to release, it won't have dbx. Nak long ago
said it prefers Dolby C or its own version of Dolby C, High-Com II, to dbx.
I believe one of the reasons they cited was unacceptable noise level pumping
("breathing") which is mostly eliminated by the former
systems' two-band NR scheme. The other may be price, at least at the time
Nak decided. dbx now uses a single chip for its vca and detection circuitry.
3-4 years ago dbx was a large amount of discrete components, about 50-80 per
channel. However, dolby C can apparently be made from the appropriate
cascading of 2 readily available dolby B chips plus a small amount of external
parts, which reduces mfg changeover costs.
The wandering squash,
--
Shaun Simpkins
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