![\"Viodi](\"http:\/\/www.viodi.com\/images\/logo-145px.gif\"){kind=logo}
<\/p>\n\u00a0<\/p>\n
<\/p>\n
Viodi View Menu<\/strong><\/p>\n Current Issue<\/a><\/p>\n Privacy vs. Security<\/a><\/p>\n AT&T vs. Comcast<\/a><\/p>\n Marketing Idea<\/a><\/p>\n Previous Issue<\/a> <\/p>\n Viodi View Subscribe<\/a> <\/p>\n Viodi Forums<\/strong> Club Viodi<\/a> Open Forum <\/a> <\/p>\n Multimedia Search <\/a> <\/p>\n Viodi Workshops<\/strong> Local Content<\/a> Telco Video 101<\/a> IPTV Training<\/a> Industry<\/strong> Industry Calendar<\/a> Viodi Links<\/a> Weissberger’s Wireless World & More<\/a> <\/p>\n About Viodi<\/a> Contact<\/a> Biographies<\/a> <\/p>\n Interested in Sponsoring the Viodi View? Send an email to: sponsor@viodi.com<\/strong><\/p>\n Please forward<\/strong> this free publication to anyone you know who is involved in some way with independent telephone companies. <\/p>\n Mission of the Viodi View:<\/strong><\/p>\n In this on-line publication, we share our analysis, opinions and direction on the interactive television news and views that we believe will be of interest and use to our friends associated directly or indirectly with independent telephone companies. For more information as to the various ways Viodi works with independent telephone companies, please go to http:\/\/www.viodi.com\/alliance\/<\/a><\/p>\n Disclaimer:<\/strong><\/p>\n The Viodi View [Viodi, LLC] and its associates used their best efforts in collecting and preparing the information published herein. However, the Viodi View [Viodi, LLC] does not assume, and hereby disclaims, any and all liability for any loss or damage caused by errors or omissions, whether such errors or omissions resulted from negligence, accident, or other causes.<\/p>\n All displayed trademarks, logos and service marks are the property of their respective owners. \u00a9 2005Viodi, LLC<\/a>. All Rights Reserved. Viodi View Newsletter – September 6th, 2006<\/strong> <\/p>\n AT&T vs. Comcast Testing<\/strong><\/p>\n Last Updated, 11:00 P.M. P.S.T., 9\/6\/06<\/strong><\/p>\n By Ken Pyle, ken.pyle at viodi.com, Managing Editor, Viodi View<\/p>\n The following videos record some of the tests we have been performing on the Comcast cable modem connection versus the AT&T DSL connection. This page is a work in progress and an update date will be provided above to give provide a reference (as well an archived page for historical purposes). <\/p>\n We are open to commentary and ideas for tests. Probably the best way to add this commentary is to go to http:\/\/viodi.com\/board\/index.php?topic=11.0<\/a>. You don’t need to be a member to comment or read the commentary. <\/strong><\/p>\n Some of these videos have been triple compressed, so they may not provide the best results (first through the Packet8 compression, then through Windows Media and then through Revver\u2019s Quicktime compression). We may put up the Windows Media format at some point, eliminating the Revver compression effect. <\/p>\n Some of the other things that we may want to add to this page are included at the bottom of the page. <\/p>\n AT&T Speed Test <\/strong><\/p>\n This test was peformed using the San Francisco server at the web site http:\/\/www.speedtest.net\/<\/a>. The test was performed September 2nd. These results are at the high end of what has been acheived with the AT&T DSL service. Typically, the speed is 300kb\/s up and down, although speeds as low as 200kb\/s have been measured.. <\/p>\n It is important to note that this location is approximately 11 to 12 kilofeet from the central office and is on home-run copper (no Service Area Interface), which is rare these days. The location is in the middle of the Silicon Valley. <\/p>\n Comcast Speed Test <\/strong><\/p>\n This test was peformed using the San Francisco server at the web site http:\/\/www.speedtest.net\/<\/a>. The test was performed September 5th. These results are pretty typically of what has been acheived with the Comcast Cable Modem service. It is consistently well above 6 Mb\/s downstream and clocks in at 350 kb\/s on the upstream. <\/p>\n The location is in the middle of the Silicon Valley. <\/p>\n Packet8 Video call over a Comcast connection. <\/strong> <\/p>\n In general, the performance of this connection was pretty good. The lips were fairly well synchronized to the voice. Pixelization was minimal and only appeared during rapid movement. <\/p>\n One end of this call used a DSL connection that is typically 1.5 Mb\/s downstream, 400 kb\/s upstream. The far end (Roger Bindl’s end) used a Packet8 softphone on a Dell Notebook computer, while the near-end used a Packet8 DV326 Video Phone. Unfortunately, there were some recording issues, so it was filmed instead of being direct recorded from the output of the Packet8 Video Phone. The router used was the NetGear WGR 614 v6. <\/p>\n Packet8 Video call over an AT&T Connection<\/strong><\/p>\n The performance in the video will not look much different than what was seen as compared to the Packet8 call over the Comcast connection. There is more pixelization, especially with fast movement. The lips are a bit out of sync and the delay might be a bit more noticable. Based on a few other calls we made, this bandwidth seems to be marginal. In one of those other calls we experienced, a few seconds of delay, which was unacceptable. <\/p>\n One end of this call used a DSL connection that is typically 1.5 Mb\/s downstream, 400 kb\/s upstream. The far end (Roger Bindl’s end) used a Packet8 softphone on a Dell Notebook computer, while the near-end used a Packet8 DV326 Video Phone. Unfortunately, there were some recording issues, so it was filmed instead of being direct recorded from the output of the Packet8 Video Phone. The router used was the same NetGear WGR 614 v6 described above. . <\/p>\n Video Download from YouTube – 16 second<\/strong><\/p>\n This is a side-by-side comparison of the download performance of Comcast and AT&T using a short video from the YouTube video site. <\/p>\n The AT&T is using a relatively new (January 2006) Toshiba lap-top (1.4 GHz , 512 MByte), while Comcast uses an older Toshiba (Sept 2001, 800 MHz, 384 Mbyte). The AT&T connection uses a Linksys router, while the Comcast connection uses the NetGear WGR 614 v6. <\/p>\n Video Download from YouTube – 1 minute<\/strong><\/p>\n This is a side-by-side comparison of the download performance of Comcast and AT&T using a medium-length video from the YouTube video site. You may be surprised as to which connection delivers the video first. <\/p>\n The AT&T is using a relatively new (January 2006) Toshiba lap-top (1.4 GHz , 512 MByte), while Comcast uses an older Toshiba (Sept 2001, 800 MHz, 384 Mbyte). The AT&T connection uses a Linksys router, while the Comcast connection uses the NetGear WGR 614 v6.<\/p>\n Video Download from YouTube – 2 minute+<\/strong><\/p>\n This is a side-by-side comparison of the download performance of Comcast and AT&T using a bit longer video from the YouTube video site. This longer length video, titled Relay for Life, really shows the difference in speed between the two broadband offerings. <\/p>\n The AT&T is using a relatively new (January 2006) Toshiba lap-top (1.4 GHz , 512 MByte), while Comcast uses an older Toshiba (Sept 2001, 800 MHz, 384 Mbyte). The AT&T connection uses a Linksys router, while the Comcast connection uses the NetGear WGR 614 v6.<\/p>\n Video Download from Google – 1 minute<\/strong><\/p>\n This is a side-by-side comparison of the download performance of Comcast and AT&T using a one minute from the Google video site. This is the a shortened version of the Relay for Life video that had played from the YouTube site. <\/p>\n The AT&T is using a relatively new (January 2006) Toshiba lap-top (1.4 GHz , 512 MByte), while Comcast uses an older Toshiba (Sept 2001, 800 MHz, 384 Mbyte). The AT&T connection uses a Linksys router, while the Comcast connection uses the NetGear WGR 614 v6.<\/p>\n Things that could be added and will be if enough interest. <\/p>\n Back to Top<\/a><\/p>\n
5255 Stevens Creek, #127 Santa Clara, CA 95051<\/p>\n![\"Click](\"http:\/\/www.viodi.com\/local\/conferencelogo.gif\")
Click here to learn more about the Technology of Local Content Workshop<\/a> <\/p>\n![](\"http:\/\/media.revver.com\/broadcast\/57155\/thumbs\/thumb_default.jpg\")
<\/a>
Click to View Video<\/a> <\/p>\n![](\"http:\/\/media.revver.com\/broadcast\/57156\/thumbs\/thumb_default.jpg\")
<\/a>
Click to View Video<\/a> <\/p>\n![](\"http:\/\/media.revver.com\/broadcast\/56993\/thumbs\/thumb_default.jpg\")
<\/a>
Click to View Video<\/a><\/p>\n![](\"http:\/\/media.revver.com\/broadcast\/56996\/thumbs\/thumb_default.jpg\")
<\/a>
Click to View Video<\/a><\/p>\n![](\"http:\/\/media.revver.com\/broadcast\/57293\/thumbs\/thumb_default.jpg\")
<\/a>
Click to View Video<\/a> <\/p>\n![](\"http:\/\/media.revver.com\/broadcast\/57295\/thumbs\/thumb_default.jpg\")
<\/a>
Click to View Video<\/a> <\/p>\n![](\"http:\/\/media.revver.com\/broadcast\/57300\/thumbs\/thumb_default.jpg\")
<\/a>
Click to View Video<\/a> <\/p>\n![](\"http:\/\/media.revver.com\/broadcast\/57313\/thumbs\/thumb_default.jpg\")
<\/a>
Click to View Video<\/a> <\/p>\n\n
![](\"http:\/\/www.viodi.com\/images\/subscription.gif\")
<\/p>\n![\"\"](\"https:\/\/www.paypal.com\/en_US\/i\/scr\/pixel.gif\"){kind=tracking}
<\/p>\n