Hi everybody,
I have a question for you guys.
(I'm new to this list and hope this is the right place to ask
and not an FAQ... I've tried to search to see if this question
had been answered previously, but I have been not able to find
what I was looking for).
I'm thinking about using a dedicated (fanless, diskless, etc)
PC as a digital source for my hi-end Hi-Fi system.
Of course I plan to use the PC only to provide a "bitperfect"
(exact copy of the original media, normally CD) digital stream
to an external DAC.
As you probably know better than me, the one major known problem
when you strive for the highest possible quality in digital audio
reproduction is jitter... and the best (if not only) way to really
minimize it is to use a good, clean and stable clock close to the
DAC chip, slaving everything else to that one.
Thus, what I would need to do would be to "slave" the sound card
SPDIF output clock to the external DAC clock i.e. to make this one
become the "master clock" for the whole digital audio stream.
AFAIK, one possible way to do this is to set up a "fake" SPDIF
output from the external DAC and connect it to an input of the
sound card whose SPDIF output goes to the DAC for conversion.
Of course the sound card must be able to "slave" (synchronize)
its SPDIF output clock with the one coming from its SPDIF input.
(BTW: are there other -perhaps easier and/or better- ways to do
what I would like to do?)
Thus, I would need a sound card which must be:
* cabable of "bitperfect" (pass through) operation at CD standard
16bit/44.1KHz (as well as, possibly, also at higher resolutions and
sample rates such as 16/48, 24/48, 24/96 and 24/192).
* capable of "slaving" its SPDIF output clock to an external one,
such as the one reconstructed from its SPDIF input.
...last but not least, of course all of this must be done on Linux,
thus the sound card must be fully supported by ALSA! 8-)
Well, yet another requirement is... that it should possibly (and
hopefully) not cost me a fortune! $-)
Thanks in advance for your attention.
Ciao e grazie,
Paolo.
--
Skype: Paolo.Saggese
http://borex.lngs.infn.it/saggese
You can still escape from the GATES of hell: Use Linux!
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