Phil,
Just make yourself a cup of tea, sit down for a while and you'll feel
better! LOL.
Darren
Phil Leigh;658902 Wrote:
> "So near and yet so far..."
>
> So, this months edition of Hi-Fi Choice has a blind testing of
> reasonably-priced streaming solutions:
>
> Cambridge Audio Sonata NP30
> Cyrus Stream X
> SB Touch
> Marantz NA7004
> Rotel RDG 1520
> Yamaha NP-S2000
>
> I like the blind testing approach. The Touch came out as Group Test
> Winner. :-)
>
> However, once again the magazine lets itself down with a basic lack of
> understanding of anything to do with computers or networking :-(
>
> For instance:
>
> Page 23 (talking about TCP transmission of audio data)...
> "...jitter can effectively be measured in seconds..."
>
> NO - stupid. There is no clock and so there is NO jitter. Doh!
>
>
> However, much worse is this: (page 54 callout box on "Tech Labs"):
>
> "One problem facing streaming devices is the susceptibility to
> interference and degradation of a signal as it passes through a
> network. Such problems can amount to drop-outs of the audio in the
> extreme but MORE SUBTLE ARTEFACTS MAY APPEAR AS DISTORTION, REDUCED
> SIGNAL-TO-NOISE RATIO AND DYNAMIC RANGE."
>
> Oh really? - I want some of those drugs please. Please explain how a
> "signal" which is represented as one or more packets of TCP data can be
> degraded without anyone noticing?... I think the entire Internet-based
> world we inhabit would like to know about that. Certainly my employer
> would be interested, as would the criminal fraternity...
>
> As for data corruption (because that IS what is being described here)
> inducing distortion, reduced SNR and DR... well, again I'd really like
> to understand how on earth that is supposed to happen. (Oh no, my
> internet browser page has gone all fuzzy and indistinct...)
>
> I thought that a corrupt TCP packet would be retransmitted...Guess I
> must be stupid, huh?
>
> {Shrugs shoulders and rolls eyes in disbelief/despair.}
--
darrenyeats
http://www.amazon.co.uk/gp/richpub/listmania/byauthor/A3H57URKQB8AQO/ref=cm_pdp_content_listmania/203-7606506-5721503.
SB Touch
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