* Richard Lang <[EMAIL PROTECTED]> on Tue, 27 Jun 2000
| Rat, does this mean you would agree that the isolation and quality within
| the component could affect the sound quality through the digital out (from
| machine to machine)?
Not really. SPDIF is effectively impervious to both external and internal
interference. Either you have a clean SPDIF signal, or you have no signal
at all.
There is the issue of jitter, but that is an entirely separate issue.
| I mean if mechanical noise can affect analogue circuitry,
Not mechanical noise, the whirring of the motor and such, but the
electromagnetic (EM) noise generated by the motors and such. That
low-pitched humming sound you hear from the speakers, that's EM noise.
| presumably it must affect the digital information since in order to reach
| the digital out ports of a component, the information must go from the
| laser through circuitry.
If this were true, things like CD-ROMs and disk drives would inherently
fail due to their own EM noise.
| I suppose even if this is the case, the next question is whether
| "effects" from mechanical noise makes any difference to the
| information....
None whatsoever. There is no signal loss or degradation within the digital
domain. See previous comment.
| Also, is there a generation of ATRAC decompression + recompression when the
| MD component reads a disc and pumps the information out a digital port?
Yes, there is. What comes out the digital jack is a 16-bit SPDIF signal
regenerated from the ATRAC-encoded signal on the disc.
--
Rat <[EMAIL PROTECTED]> \ Happy Fun Ball may stick to certain types
Minion of Nathan - Nathan says Hi! \ of skin.
PGP Key: at a key server near you! \
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