Phil Karn wrote:
Arthur Cheng wrote:
Dear hackers!
I have noticed that the slim box uses Micronas MAS3539F chip with and
clock of 18.432M. I would if an replacement of this clock will reduce
jitter and improve performance to give a truly audiophile results?
Crystal oscillators, by their nature, have very low phase noise, but
they can have frequency errors and long term drift that, depending on
the application, sometimes has to be corrected. This is well known to
any electronic engineer.
So it seems to me that the D/A jitter caused by crystal oscillator phase
noise is going to be completely undetectable by the human ear unless,
perhaps, the oscillator is quite defective. The small errors in
frequency could accumulate over time to cause buffer overrun or underrun
on live streams, but short term jitter, as in audible frequency
modulation distortion of a signal? I *seriously* doubt it.
Phil,
Jitter is the single biggest factor affecting digital audio.
This link [1] explains it rather well.
[1] http://www.jitter.de/english/engc_navfr.html
R.
--
http://robinbowes.com
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