Phil Leigh;480300 Wrote: 
> There's nothing new in what Naim are doing...
> 
> http://www.scalatech.co.uk/papers/aes93.pdf

Of course.  NAIM are using commercially available parts.  They cost $10
at
retail.  They haven't the money to do any of this themselves. All
they're
using is an asynchronous converter.

I made a DAC that has the same thing in it. The trick I pulled is my
DAC
sends a clock to my transporter, so my DAC's asynchronous converter
isn't
doing any sample additions or deletions, and a local clock clocks the
DAC chips directly.... so nearly no jitter, no interface problems such
as the papers in this thread talk about.  Beautiful.

The guys that were doing any real digital processing in the old days
were
Wadia.  And look what their stuff cost.  Now it looks like others are
playing with silicon a bit, but again box costs are >$10k each, and
often you
need 3 boxes - including one that has an atomic clock.  (hahahahaah -
ya
now I'm sure THAT makes a big difference.)

If you want to play with this stuff, about the only way to go is with
an
FPGA.  Guys that design this stuff are kinda rare, and it's very
expensive
to develop.


-- 
wayne325
------------------------------------------------------------------------
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