[rec.audio.high-end] dolby

rcollins@altos86.Altos.COM (Robert Collins) (09/13/90)

In article <6241@uwm.edu> tomp@vicom.com (Tom Pohorsky) writes:
+>>	I've always thought (seriously) that this explained why Dolby
+>>noise reduction was so bad -- at least the original; I haven't heard
+>>Dolby S etc.  It completely brutalized the high end, and I assumed that, since
>>Mr. Dolby seems to be rather along in years, he simply couldn't tell.  What
+>>else could explain it?  Poor implementation on the decks to which I've been
+>>exposed?  Possibly.
+>
+>If you've had bad luck w/Dolby B or C, it is the implementation that is
+>the problem. I have 2 Nakamichi decks, one that can be calibrated for
+>bias and Dolby, the other cannot (via the front panel). They both work
+>fine with or without Dolby. The better Nak has a 15khz test tone, and
+>the Dolby handles that fine.

I also have two Nakamichi's.  One is a 350, the other is a 550 -- both are
portable.  The 550 implemented Dolby-B in discrete transistors, and the
350 uses an IC.  The 550 is adjustable, the 350 is not (or if it is,
I don't remember).

The 550 Dolby circuit sounds incredible...it sounds great.

[Anyone taken it apart to find out the implementation? -tjk]

-- 
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