SageTV Community  

Go Back   SageTV Community > General Discussion > General Discussion
Forum Rules FAQs Community Downloads Today's Posts Search

Notices

General Discussion General discussion about SageTV and related companies, products, and technologies.

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 02-22-2010, 08:27 AM
stuckless's Avatar
stuckless stuckless is offline
SageTVaholic
 
Join Date: Oct 2007
Location: London, Ontario, Canada
Posts: 9,713
SDV killed the DVR star?

Interesting article on ars about how cable companies moving to SDV (switched digital video) is killing the 3rd party DVR market, like Tivo.

I'll be honest... i've heard the term SDV, but I never really understood what it meant. But if this trend continues, then I'm guessing HDPVR type setups will be on the means of accessing cable. I doubt even CableCard solutions will handle the SDV correctly. (guessing)
Reply With Quote
  #2  
Old 02-22-2010, 08:44 AM
stanger89's Avatar
stanger89 stanger89 is offline
SageTVaholic
 
Join Date: May 2003
Location: Marion, IA
Posts: 15,188
That's what Tuning Adapters are for. And yes they work with OCUR devices.

Last edited by stanger89; 02-22-2010 at 08:47 AM.
Reply With Quote
  #3  
Old 02-22-2010, 10:05 AM
stuckless's Avatar
stuckless stuckless is offline
SageTVaholic
 
Join Date: Oct 2007
Location: London, Ontario, Canada
Posts: 9,713
Quote:
Originally Posted by stanger89 View Post
If tivo already has a solution, then why are they complaining??
Reply With Quote
  #4  
Old 02-22-2010, 10:48 AM
MattHelm MattHelm is offline
Sage Icon
 
Join Date: Jun 2005
Location: Chicago, IL
Posts: 1,209
What I'd really like to see, is about 200 people choose different HD programs on one of these systems, I figure about the last 10 will be screaming to the cable company when it says, "Sorry, no bandwidth for your show... please wait an hour or 2 for it to start." or "Please wait until 4AM when or system isn't used much."
__________________
Server #1= AMD A10-5800, 8G RAM, F2A85-M PRO, 12TB, HDHomerun Prime, HDHR, Colossus (Playback - HD-200)
Server #2= AMD X2 3800+, 2G RAM, M2NPV-VM, 2TB, 3x HDHR OTA (Playback - HD-200)
Reply With Quote
  #5  
Old 02-22-2010, 11:55 AM
PLUCKYHD PLUCKYHD is offline
SageTVaholic
 
Join Date: Dec 2007
Posts: 6,257
Quote:
Originally Posted by MattHelm View Post
What I'd really like to see, is about 200 people choose different HD programs on one of these systems, I figure about the last 10 will be screaming to the cable company when it says, "Sorry, no bandwidth for your show... please wait an hour or 2 for it to start." or "Please wait until 4AM when or system isn't used much."
They aren't that many users on one switch only about 6 houses in my area
Reply With Quote
  #6  
Old 02-22-2010, 02:58 PM
JetreL's Avatar
JetreL JetreL is offline
Sage Aficionado
 
Join Date: Jun 2008
Location: Charlotte, NC
Posts: 388
Typically Switch Digital is negotiated between the cable node and your converter box/cable card. There are typically ~60-180 subs off a node. Of that on average you probably do not have more than 30% watching a SDV channel. Mix that with, if someone is watching a SDV channel all then the subs watching the same SDV channel are using the same QAM for broadcasting. Since most TV is broadcasted in 30 minute segments you continually have SDV cannels drop off of QAMs. The only time you would run into an issue would be if many people are watching many different types of content. (Snow days) This generally doesn’t happen. So the chances of using up all the QAMs to stream SDV are not probable. ISPs have been using bandwidth trending like this for a long time.

On top of all this, if you cable provider is worth their mud they monitor their network bandwidth and missed show streams and would work to resolve.
Reply With Quote
  #7  
Old 02-22-2010, 04:56 PM
MattHelm MattHelm is offline
Sage Icon
 
Join Date: Jun 2005
Location: Chicago, IL
Posts: 1,209
Quote:
Originally Posted by JetreL View Post
... The only time you would run into an issue would be if many people are watching many different types of content. (Snow days) This generally doesn’t happen.
Not if someone "plans" it ahead of time. If the cable company cause you grief, this would be an EASY way to get back at them. Get about 500 people to select all those "channels" they advertise, and hit them at once, then get anyone that doesn't get a show, call and complain!!!
__________________
Server #1= AMD A10-5800, 8G RAM, F2A85-M PRO, 12TB, HDHomerun Prime, HDHR, Colossus (Playback - HD-200)
Server #2= AMD X2 3800+, 2G RAM, M2NPV-VM, 2TB, 3x HDHR OTA (Playback - HD-200)
Reply With Quote
  #8  
Old 02-22-2010, 06:25 PM
JetreL's Avatar
JetreL JetreL is offline
Sage Aficionado
 
Join Date: Jun 2008
Location: Charlotte, NC
Posts: 388
Not be be argumentative but you would only be able to affect 1 to 3 nodes if that and in my market there are ~700,000 Digital subscribers. This connection rate happens almost every-time there is a fight or UFC PPV. So as long as the infrastructure is sound it should absorb that influx and keep ticking...
Reply With Quote
  #9  
Old 02-24-2010, 07:44 PM
rsteele rsteele is offline
Sage User
 
Join Date: Apr 2008
Posts: 49
Quote:
Originally Posted by stuckless View Post
If tivo already has a solution, then why are they complaining??
Because they don't work very well, at least according to a friend. Lock-ups, missed shows, etc. It's better now than six months ago, but still not 100% reliable.

TWC in Rochester is one of the leading, early users of SDV, and no one who uses a third-party DVR is happy. It's nice that Tivo owners have an option, but what about those of us who don't own, or want, a Tivo?

Rich
Reply With Quote
  #10  
Old 02-24-2010, 08:07 PM
stanger89's Avatar
stanger89 stanger89 is offline
SageTVaholic
 
Join Date: May 2003
Location: Marion, IA
Posts: 15,188
Quote:
Originally Posted by rsteele View Post
It's nice that Tivo owners have an option, but what about those of us who don't own, or want, a Tivo?
I linked above where OCUR devices (the CableCard tuners used by Media Center) have been certified for use with tuning adapters.
Reply With Quote
  #11  
Old 03-07-2010, 02:43 PM
crobs808's Avatar
crobs808 crobs808 is offline
Sage User
 
Join Date: Apr 2009
Location: Dallas, TX
Posts: 67
If TiVo were smart, they would not whine about it by filing a complaint with the FCC, but rather just update their firmware to handle SDV (and maybe a tiny hardware tweak on new models). All it requires is a simple packet request be sent upstream to the provider...big deal. SDV is going to be standardized, and there might be two or max..three (heaven forbid) protocols on how it can be done. TiVo needs to stop whining about technology and change with it. On the other hand (in indirect support of TiVo)...why switch to a method of channel changing who's only benefit is less bandwidth usage, when we live in a world where bandwidth is getting cheaper and cheaper and data pipes are getting more and more capable every day? Is bandwidth really an issue for these companies when it is their primary product?

(Now back to devil's advocate) I for one believe that SDV will be in the consumers best interest too since you will have less bandwidth usage on our end to use, especially since everyone I know has a combined package (Internet + TV over the same line). This seems pretty brain dead to me...but I guess it is cheaper for TiVo to whine to the FCC rather than do any new development.
__________________
Server: Win7 Ultimate 64-bit, 2x Quad Xeon E5420, ATI 4870X2, 8x Pioneer BDR-203
Hardware: Hauppauge HD-PVR
Software: Windows Media Center (formerly SageTV)
Source: ATT U-Verse HD
Output: Panasonic 50" Plasma / LAN

Last edited by crobs808; 03-07-2010 at 02:49 PM.
Reply With Quote
  #12  
Old 03-07-2010, 03:18 PM
Fuzzy's Avatar
Fuzzy Fuzzy is offline
SageTVaholic
 
Join Date: Sep 2005
Location: Jurupa Valley, CA
Posts: 9,957
SDV is not about saving whole network bandwidth, it is about the cable going into your house. That cable spectrum only has so many channels to use. Prior to SDV, every customer had to have every available channel sent to their homes. This, effectively, puts an upper cap on that channel number. When you consider that some of those channels are now also being used for internet and phone, the cap gets lower and lower. Prior to SDV, the method of adding more channels, meant lowering the bitrate of existing channels to make room to squeeze more in. The only other alternative to SDV would be to actually increase the number of lines into the house.. a VERY expensive and complicated process. With SDV, the operators only have to increase the bandwidth along their main trunks (which, more often are fiber bundles, with plenty of room), This, also, can eventually result in an increase in both available channel count AND channel quality. If there are only 60 households on a node, there is a real possibility of being able to get near full channel bandwidth for every available HD channel, while still allowing them to increase the lineup.
__________________
Buy Fuzzy a beer! (Fuzzy likes beer)

unRAID Server: i7-6700, 32GB RAM, Dual 128GB SSD cache and 13TB pool, with SageTVv9, openDCT, Logitech Media Server and Plex Media Server each in Dockers.
Sources: HRHR Prime with Charter CableCard. HDHR-US for OTA.
Primary Client: HD-300 through XBoxOne in Living Room, Samsung HLT-6189S
Other Clients: Mi Box in Master Bedroom, HD-200 in kids room
Reply With Quote
  #13  
Old 03-07-2010, 03:22 PM
crobs808's Avatar
crobs808 crobs808 is offline
Sage User
 
Join Date: Apr 2009
Location: Dallas, TX
Posts: 67
Quote:
Originally Posted by Fuzzy View Post
SDV is not about saving whole network bandwidth, it is about the cable going into your house. That cable spectrum only has so many channels to use. Prior to SDV, every customer had to have every available channel sent to their homes. This, effectively, puts an upper cap on that channel number. When you consider that some of those channels are now also being used for internet and phone, the cap gets lower and lower. Prior to SDV, the method of adding more channels, meant lowering the bitrate of existing channels to make room to squeeze more in. The only other alternative to SDV would be to actually increase the number of lines into the house.. a VERY expensive and complicated process. With SDV, the operators only have to increase the bandwidth along their main trunks (which, more often are fiber bundles, with plenty of room), This, also, can eventually result in an increase in both available channel count AND channel quality. If there are only 60 households on a node, there is a real possibility of being able to get near full channel bandwidth for every available HD channel, while still allowing them to increase the lineup.
I am all for SDV, like I said in my post...was just stating pros and cons of both sides of the issue. I am a quality nut, and sick of blocky broadcasts...I am used to 100Mbps recordings from my video camera, so when I sit down and watch TV, I have to cringe at times...not because I am anal retentive about quality so much as it is that I KNOW they could be sending me a higher bitrate, but choose not to. Grr! Ok, now I am venting - not directed at anyone, except maybe the employees behind U-Verse/Fios/and other services....

Now, as far as the benefit of "Unlimited Channels"...hmm. How many people here use all the available channels now? And even the people who have the top package...there are just not enough hours in the day to watch what is available even now! Most peoples DVRs are full of stuff they never even get to watch, lol. Do we really need more channels? Most people can count the channels they watch on one hand....Heck - I can count the SHOWS I watch on one hand!
__________________
Server: Win7 Ultimate 64-bit, 2x Quad Xeon E5420, ATI 4870X2, 8x Pioneer BDR-203
Hardware: Hauppauge HD-PVR
Software: Windows Media Center (formerly SageTV)
Source: ATT U-Verse HD
Output: Panasonic 50" Plasma / LAN

Last edited by crobs808; 03-07-2010 at 03:25 PM.
Reply With Quote
  #14  
Old 03-07-2010, 05:24 PM
Fuzzy's Avatar
Fuzzy Fuzzy is offline
SageTVaholic
 
Join Date: Sep 2005
Location: Jurupa Valley, CA
Posts: 9,957
And if the service was designed for a single customer, the channels he wanted would be all that it would carry.. That, however, is not the case. Yes, one person may only like a handful channels, but there are a LOT of hands out there to fill, and all want different channels. Those channels all have to be provided by the same service. If you want ala-cart, you can get a great number of channels, in Exceptional quality with a big 'ol c-band dish.
__________________
Buy Fuzzy a beer! (Fuzzy likes beer)

unRAID Server: i7-6700, 32GB RAM, Dual 128GB SSD cache and 13TB pool, with SageTVv9, openDCT, Logitech Media Server and Plex Media Server each in Dockers.
Sources: HRHR Prime with Charter CableCard. HDHR-US for OTA.
Primary Client: HD-300 through XBoxOne in Living Room, Samsung HLT-6189S
Other Clients: Mi Box in Master Bedroom, HD-200 in kids room
Reply With Quote
  #15  
Old 03-10-2010, 12:57 PM
Taddeusz Taddeusz is offline
SageTVaholic
 
Join Date: Nov 2004
Location: Yukon, OK
Posts: 3,919
Quote:
Originally Posted by crobs808 View Post
I am all for SDV, like I said in my post...was just stating pros and cons of both sides of the issue. I am a quality nut, and sick of blocky broadcasts...I am used to 100Mbps recordings from my video camera, so when I sit down and watch TV, I have to cringe at times...not because I am anal retentive about quality so much as it is that I KNOW they could be sending me a higher bitrate, but choose not to. Grr! Ok, now I am venting - not directed at anyone, except maybe the employees behind U-Verse/Fios/and other services....
Not really, when you consider a single ATSC frequency can provide up to 19.39Mb/s of bandwidth while a single QAM channel can provide a maximum of 38.78Mb/s.

SDV is done by sending all the channels to a local concentrator. Then all the subscribers attached to that concentrator request what channel they want to view. When you consider how SDV is done it is still wasteful for them to fill up a single frequency with only one channel.

Here in OKC on Cox Cable I see average bitrates for my local HD channels anywhere between 12-18Mb/s. The few non-locals that I can pick up average about that as well. So Cox doesn't seem to be mangling them too bad, or at all, to fit them into QAM frequencies.

Broadcast TV is quite a different beast than shooting with a video camera. It's never going to be the same quality. Don't know what kind of camera you have but not even Blu-ray has that high of a bitrate as it tops out at 30Mb/s for 1080p video.
__________________
Server: i5 8400, ASUS Prime H370M-Plus/CSM, 16GB RAM, 15TB drive array + 500GB cache, 2 HDHR's, SageTV 9, unRAID 6.6.3
Client 1: HD300 (latest FW), HDMI to an Insignia 65" 1080p LCD and optical SPDIF to a Sony Receiver
Client 2: HD200 (latest FW), HDMI to an Insignia NS-LCD42HD-09 1080p LCD
Reply With Quote
  #16  
Old 03-10-2010, 01:02 PM
Fuzzy's Avatar
Fuzzy Fuzzy is offline
SageTVaholic
 
Join Date: Sep 2005
Location: Jurupa Valley, CA
Posts: 9,957
He's talking about DVCPro100 cameras, which use a souped up version of the DV DCT codec. It is an older, far less sofisticated codec, that is about ease of processing than compression (every frame is compressed individually). The quality is actually pretty comparable between DVCPro100 and 30Mbps BluRay.
__________________
Buy Fuzzy a beer! (Fuzzy likes beer)

unRAID Server: i7-6700, 32GB RAM, Dual 128GB SSD cache and 13TB pool, with SageTVv9, openDCT, Logitech Media Server and Plex Media Server each in Dockers.
Sources: HRHR Prime with Charter CableCard. HDHR-US for OTA.
Primary Client: HD-300 through XBoxOne in Living Room, Samsung HLT-6189S
Other Clients: Mi Box in Master Bedroom, HD-200 in kids room
Reply With Quote
  #17  
Old 03-10-2010, 02:44 PM
stanger89's Avatar
stanger89 stanger89 is offline
SageTVaholic
 
Join Date: May 2003
Location: Marion, IA
Posts: 15,188
Quote:
Originally Posted by Taddeusz View Post
Broadcast TV is quite a different beast than shooting with a video camera. It's never going to be the same quality. Don't know what kind of camera you have but not even Blu-ray has that high of a bitrate as it tops out at 30Mb/s for 1080p video.
FWIW, Blu-ray's peak bitrate is actually 40Mbps.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Star Ratings? bigo93bronco SageTV Customizations 2 07-05-2009 11:57 AM
Sage and SDV wayner General Discussion 1 11-05-2008 12:15 PM
If STX-HD100 can play dvr-mx files why dvr-ms is not listed in specification? logmaster SageTV Media Extender 4 10-30-2008 05:24 PM
If you plan to use SRE to monitor Sunday's NHL All Star game please read this Slugger SageTV Customizations 0 01-27-2008 01:42 AM
EventCodes for pound and star jsonnabend SageTV Software 5 12-11-2006 08:56 AM


All times are GMT -6. The time now is 02:23 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.
Copyright 2003-2005 SageTV, LLC. All rights reserved.