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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: Re: Power supply for Perpetual P-1A posted by steve b on December 16, 2002 at 10:16:52:
Steve,You wrote:
> The CS8420 is probably better than the time-lens for
> jitter reduction. . . Then the Bel Canto probably already
> has one inside anyway.The Bel Canto DAC-1 (and DAC-1.1) had the CS8420 for
upsampling to 24/96. The DAC-2 I'm using has a newer
and more sophisticated chip from Analog Devices for
upsampling to 24/192 (the AD1896).I'll be using the P-1A for "resolution enhancement" only
(the adaptive dithering, multiresolution wavelet filtering,
or whatever the hell algorithm it inherited from the
DTI Pro-32). I won't be using it for upsampling **or**
jitter reduction; hence its own CS8420 SRC would be
redundant, if engaged (and the only way to **disengage**
it is by using the P-1A's I2S input). The Genesis
Digital Lens and DTI v.2 in the scenario I described would
be nothing more than glorified adapters (coax-to-balanced,
balanced-to-I2S). Come to think, I could also use Toslink
from transport directly to DTI v.2, rather than spending money
on a balanced cable and going through the Lens.As you say, jitter would be greatly attenuated by the Bel Canto's
SRC (which comes immediately before the DAC, for maximum
effectiveness).Jim F.
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Follow Ups
- Re: Power supply for Perpetual P-1A - JimF 12/16/0211:17:04 12/16/02 (0)
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