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compression posts

WinFast HPVC1100 is world's first external SpursEngine encoder

by Darren Murph posted May 12th 2009 at 8:53AM


Toshiba's Cell-based SpursEngine HD video co-processor has made plenty of appearances within monstrous gaming machines, but this marks the very first time where it has stepped out of the laptop chassis and into a portable enclosure. Granted, the language barrier is killing us here, but it seems as if the Leadtek WinFast HPVC1100 wraps a SpursEngine encoder into an on-the-go solution that can be lugged around with a standard laptop in order to churn through video while on set, in the field or on the road. Other specs include 128MB of RAM, a PCI-Express slot and a weight of 1.54 pounds; there's no word just yet on pricing or availability. One more shot is after the break.

[Via Akihabara News]

Continue reading WinFast HPVC1100 is world's first external SpursEngine encoder

MPEG group working on AVC replacement for Ultra High Definition video of the future

by Richard Lawler posted May 5th 2009 at 9:56PM


The tech around Super Hi-Vision technology may not be completely worked out yet, but with that on the way, plus HD for mobile devices and even more streaming, the 88th meeting of the MPEG/ISO standards group in Maui was apparently a busy one as attendees voted to work on a new, better form of compression to replace MPEG-4 AVC. "High Performance Video Coding" (HVC) is just a dream at the moment, but be sure to pencil that in as one more spec to look out for in the future. Of course, they didn't mention a delivery system for 22.2 channel audio, but we'll just assume that's being handled as well.

[Via EE Times UK]

RED blows away small room of videophiles with 4k RED RAY footage at half the bitrate of MiniDV

by Paul Miller posted Apr 25th 2009 at 3:48PM


While RED has been pretty tight-lipped about its planned RED RAY product, some footage shown off at RED's NAB party gave a sizable hint that RED RAY could be much more than meets the eye -- specifically a $1,000 device that can play cinema-quality 4k video off of standard DVDs. At the party they played an uncompressed showreel of 4k footage on a Sony 4k projector, which clocked in at 1.3GB per second, and then showed that exact same footage under the "RED RAY" codec at a mere 10Mb/s (megabits, not bytes; about half the bitrate of SD DV), at a compression rate of 700:1. Attendees claimed they could see zero visible compression, though a projector in a ballroom isn't exactly the best case scenario to test that sort of thing. Unfortunately, there's little other info about how they're achieving this (we hear "wavelets" come into the equation at some point), or to what nefarious aims, but with compression like this the implications for content distribution are pretty stunning: 1080p+ streaming for all. Naturally, the down side of all of this is probably some pretty hefty processing power on the consumer end, but we'll cross that I/O bridge when we come to it.

[Thanks, Ben H]

Fixstars CE-10 encoder puts Playstation 3 to work on h.264 video

by Richard Lawler posted Apr 17th 2009 at 2:52PM

Maybe you don't do enough video conversion to make copping a dedicated SpursEngine card a good investment, but that doesn't mean you can't put the Cell processor in your PlayStation 3 to work in between sessions of Killzone 2, (not like it's busy curing cancer or anything.) Fixstars' CE-10 encoder doesn't exactly fit the "Cell Storage" pie in the sky promises of yesterday, but by installing it on a PC it lets users tap into the PS3's number crunching power to achieve professional encoding quality. No word on what an "affordable prosumer price" is, but if ultra fast HD encoding is something you'd be interested in -- those 1080p vids won't compress themselves -- stop by the Broadcast International booth at NAB next week for an early preview before the software launches in June.

Rogers reportedly implements more compression on HD channels

by Darren Murph posted Apr 1st 2009 at 10:08PM

Sadly, we don't have any reason to believe that this is some nasty April Fool's prank. We heard right around this time last year that Rogers Cable was looking to pull a Shaw and compress its HD signals even further, and now, it seems that said smashing has begun. According to Digital Home, a "majority of all Rogers high definition channels measured are now being compressed." Investigation in the matter has found that around 60 percent of Rogers' HD channels in Toronto were compressed, with HBO, The Movie Network, MPix, Nat Geo, CBS West, ABC West, Fox West, NBC West and PBS suffering the most. We're told that those stations saw typical bitrates of around 10Mbps to 13Mbps, while Rogers SportsNet, CityTV, CBC, CTV, Global and Discovery HD saw streams between 16Mbps and 18Mbps. Any locals care to confirm / deny?

Cable HD compression gets turned up a notch in the Electra 8000 encoder

by Richard Lawler posted Mar 30th 2009 at 8:02AM


We haven't talked about QAM cramming much recently, but we have a feeling its ugly, pixelated head will soon be raised once more, now that Harmonic is launching the DiviCom Electra 8000 encoder, capable of stuffing four MPEG-2 HD streams in one QAM channel. It might be an interesting bit of hardware if you're a head end tech, capable of delivering 1080p60, MPEG-4 and MPEG-2 video capable of three encoding passes, but all we can see at the end is too many channels slotted into too little frequency and the potential for compression artifacts. Anyone stopping by Cable Show '09 this week should be able to get a demo, with the first units shipping in June, we'll be keeping a close eye on both our channel lineup and picture quality.

[Thanks, Larry]

Netflix CPO gets technical about encoding for streaming

by Darren Murph posted Nov 20th 2008 at 6:02AM


Go on, confess. If you're reading this now, chances are you have at least a passing interest in learning how all of this glorious streaming content actually gets to your TV set / computer while still managing to look at least halfway decent. If you're willing to be honest with yourself, there's a lot in the read link that you'll love. Without going too in-depth here (wouldn't want to scare anyone off, you know?), Netflix's Chief Product Officer covers the basics of first- and second-generation encoding as well as how it handles the wonderful high-def encodes that are used to deliver Watch Instantly content to the Xbox 360. Oh, and now that the New Xbox Experience is live, you can chime in below and let us know if all that hard work that's being done behind the scenes is paying dividends on your HDTV.

[Via CNET]

AT&T will increase HD compression on U-verse

by Richard Lawler posted Sep 22nd 2008 at 1:04AM

Good news, U-verse fans, you'll be upgrading from the current 2 HD / 2 SD video stream system to three live HD streams in 2009. The (potentially) bad news is that comes with the price of additional compression, as AT&T's IPTV service squeezes its MPEG-4 video streams down to 5 Mbps from a current size of 6-8 Mbps, according to CTO John Donovan. Count another bonus as the Total Home DVR will throw as many as seven video streams around the house, up from the current five. With a last mile DSL strategy that gives it less breathing room than Verizon's FiOS, there's only one way to add more streams, but is there going to be a PQ price to pay? We'll find out soon, and don't expect AT&T to stop there, Multichannel News quotes Donovan saying encoders currently in development could reduce bandwidth even further.

Popular Mechanics gets wise to HD compression

by Ben Drawbaugh posted Jul 27th 2008 at 7:36PM

compression
Around Engadget, we're all too familiar with the evil bit starving ways of some content providers and local affiliates in the name of the bottom line. But it's always good to see the more mainstream press get wise as Popular Mechanics has a good article on the why and why not, our HD signal is over compressed. The most interesting new piece of information is something we've heard of in the past, but it's good to get additional details, which is HBO's requirements in regards to what a provider can do with its signal. We assumed the requirements would specify a minimum bit rate, but in reality it is a limitation of what other content can be carried on the same QAM channel. So that means no sports, animated content, or any other bit hungry content for that matter. Ultimately, all this talk just makes us enjoy our Blu-ray Discs that much more.

Poll: Have you been affected by over-compressed HD feeds?

by Darren Murph posted Apr 5th 2008 at 12:00PM


Talk about an onslaught. Within the course of a few weeks we've seen Shaw, Rogers and Comcast all get flamed for purportedly compressing their signals to a point beyond acceptable, and as if that wasn't enough, a recent research report found that video quality issues (shocking, we know) were the primary reason for call-in complaints. All the while, Verizon is taking the chance to toot its own horn and boast about its ability to pass along HD signals sans additional tweakage. So, are you right in the middle of this firestorm? Or are you gleefully looking in from the outside with a gorgeous HD picture on your set? Give us your story below, won't you?

[Image courtesy of Vidiot]

Have you been affected by over-compressed HD feeds?

HD compression goes under the microscope

by Darren Murph posted Apr 4th 2008 at 11:50PM


Considering the recent hullabaloo over Comcast and Rogers Cable deciding to (over) compress at least part of their respective HD lineups, Electronic House's latest writeup is particularly timely. It's investigation into HD Lite reveals quite a few tidbits that everyone should know, but often get overlooked in the uproar. Put simply, every high-def channel that gets piped your way is compressed in some form or fashion (that includes you too, Verizon) before it hits the carrier. In other words, just because a signal gets modified before it hits your set doesn't automatically make it HD Lite. Still, there's no doubt that some providers have taken this squeeze too far and compressed signals to the point of noticeability -- that's where the problem emerges. Give the article a read, you'll likely learn a thing or two about nomenclature if all else fails.

Verizon FiOS TV spot boasts of "uncompressed" HD

by Darren Murph posted Apr 4th 2008 at 3:03PM

It was inevitable, really. No sooner does Comcast and Rogers Cable begin taking heat for over compressing their HD feeds than Verizon pumps out a TV spot trumpeting its ability to deliver "pure, uncompressed high-definition." The ad campaign asserts that its delivery of material is superior to that offered up by traditional cable providers, but the company's media relations director Bobbi Henson did note that the real purpose was to show that "FiOS TV customers are receiving HD that's not compressed by Verizon." She noted in an e-mail statement that "content owners compress their video before sending it to video service providers, but [Verizon] forwards the signal to its customers the way that [they arrive]." You know what they say about bandwidth: if you've got it, flaunt it.

Rogers Cable to implement more compression on some HD signals

by Darren Murph posted Apr 4th 2008 at 8:43AM

Bad news for Rogers Cable customers -- word on the street has it that your HD feeds may begin to look a little less fantastic in the coming days. According to Digital Home Canada, the carrier has outlined a plan in a technical briefing sent out by Rogers Network Engineering and Operations that will compress part of its high-definition lineup in order to "deliver more HD channels without having to use more bandwidth." As it stands, 15 HD channels are facing the dreaded HD Lite treatment effective April 9th, but curiously, we're not told which HD networks are actually on the docket to be added. Granted, we've yet to see a definitive confirmation, but given that Comcast has recently caught loads of flack for its decision to shove three HD channels on a single 6MHz slot, we suppose an awful trend could be (re)emerging. Keep a critical eye out, Rogers customers -- let us know if anything changes.

[Thanks to everyone who sent this in]

Comcast rolling out Science, Disney and ABC Family HD channels

by Richard Lawler posted Apr 2nd 2008 at 9:08PM

Comcast is stepping up its busy HD rollout (and channel squeezing) schedule, with several new channels spotted today in the Detroit and Chicago areas. Science HD, Disney HD and ABC Family HD are probably in your local channel guide -- Discovery HD is now listed DSCHD, while Disney is DISHD, confused yet? -- and word is they should hit many other areas Wednesday. Posters at AVSForum indicate more of the 3 channels-on-one-QAM compression tactics are afoot, take a look and let us know if having High School Musical 2 in HD still satisfies.

[Thanks, Nathaniel]

Read - Detroit, MI HDTV
Read - Chicago, IL Comcast

Poll: Are you satisfied with your HD service?

by Darren Murph posted Feb 9th 2008 at 12:00PM


After breaking things down as best we could this week, we noticed a flood of comments from critical HD consumers about the quality (or lack thereof) of their HD service. Of course, it's impossible for us to take a look at each provider out there and assess just how wonderful (or not) its deliverance of high-definition programming is, so we figured we'd put it out there for all of you readers. Bottom line: are you stoked about the quality of your high-def service? If so, by all means, let the world know who's treating you right. If not, shout out what's keeping you from extolling your carrier -- be it a shoddy HD DVR, inexplicable compression, a high level of outages, a dearth of HD offerings or simply charging too much for too little.

Are you satisfied with your HD service?





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