SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here -- Ignore unavailable to you. Want to Upgrade?


To: John Stichnoth who wrote (3246)3/29/1999 9:49:00 PM
From: ftth  Respond to of 12823
 
Absolutely silly as a blanket generalization. But I really would like to get the link to the press blurb that led this person to that conclusion.

There is nothing fundamental to any of the channel coding processes involved that destroy the video/audio. Generally, the video/audio is preprocessed at the send end to some crummy resolution/frame rate/sample rate so that any generic link can support the download of it. This is what destroys the fidelity and affects ANY download.

If the data rate of the clip being transferred is within the range supported by the link, the link can be cable, DSL, or 2CAS (2 cups and a string). Being able to support the transfer rate, and producing a high fidelity end-presentation are two entirely different things.

HOWEVER, a demo could EASILY be staged so that either could be shown to be inferior to the other.

Perhaps the most important point to realize, however, is that there is no single magic number that can be used for cable or DSL capabilities or comparisons. There are dozens of different cable system implementations using different equipment with different capabilities, and many flavors and fragrances of DSL also. General comparisons without specific mention of the system details for what's being compared is nothing more than hand-waving, and inevitably comes out in favor of the author's bias (or induced bias because they didn't do a very good job of crossing their references).

dh



To: John Stichnoth who wrote (3246)3/29/1999 10:36:00 PM
From: Frank A. Coluccio  Read Replies (2) | Respond to of 12823
 
John, DSL, like cable modem and the lower layers of ISDN, is a physical medium transport service. As long as it is error free, it will deliver downloads as favorably as the other forms, provided the transfer rate is within the specified capabilities of the (dsl) service. Dave's response was more eloquent, and touched on more aspects of encoding multimedia streams, but we're essentially saying the same thing. Good show, dh. Frank_C.