dslreports logo
site
 
    All Forums Hot Topics Gallery
spc

spacer




how-to block ads


Search Topic:
uniqs
20
share rss forum feed

Betamax76

join:2008-10-16
Canonsburg, PA
reply to motorola870

Re: [HD] Cartoon Network HD Ch 757

Virtually all of the 24 HBO and Cinemax HD channels, the 6 .TV Byron Allen HD channels, QVC HD, Hallmark Movie Channel HD, MAV TV HD, and about 6 others are statmuxed 3:1. Of the 130 national HD English CABLE channels on Fios, about 40 are now loaded 3 to 1 in MPEG-2.


motorola870

join:2008-12-07
Arlington, TX
kudos:3
said by Betamax76:

Virtually all of the 24 HBO and Cinemax HD channels, the 6 .TV Byron Allen HD channels, QVC HD, Hallmark Movie Channel HD, MAV TV HD, and about 6 others are statmuxed 3:1. Of the 130 national HD English CABLE channels on Fios, about 40 are now loaded 3 to 1 in MPEG-2.

is cartoon network a on a QAM by itself. And are there any other QAMs that are open thanks to the 3:1 QAM change?

This could be big for Verizon were talking about possibly 20 QAMs opening up for HD!

McBane

join:2008-08-22
Plano, TX
reply to Betamax76
So if they're using 3:1 now on QAM space now does that mean they have to compress any signals?

Betamax76

join:2008-10-16
Canonsburg, PA
Verizon is definitely compressing signals in the 3 to 1 statmux transition. It started with provider delivered MPEG-4 channels such as HBO and Cinemax. These had to be re-encoded anyway for MPEG-2 delivery on the Fios network and were only being sent at a bitrate of 6 MB/sec in MPEG-4 (roughly 12 MB/sec in MPEG-2). But recently, channels which originate in MPEG-2 from the provider, such as Epix2 HD, have been converted to 3:1 channel loading. If Epix2 originates from the provider as 18 MB/sec, the best Verizon can do with 3:1 statmuxing is 13 MB/sec using MPEG-2 encoding. Most people with HDTVs smaller than 50 inches simply won't notice the difference. Customers with TV sets 80 inches and above probably will object more. Even with 3:1 channel loading, Verizon's picture quality will be much better than ATT's U-Verse IPTV delivery system. Fios picture quality will be on par with Comcast and Time Warner, who have been using 3:1 MPEG-2 statmuxing for 5 years.

Currently about 40 of the 130 national HD English cable channels are loaded 3 to 1 on Fios. If another 60 make the transition, this will open up another 10 QAM slots, providing up to 30 additional MPEG-2 HDTV channels. Hopefully the 25 most popular cable networks will remain 2 to 1 MPEG-2 channel loading for sometime.