HTPC - TV Tuner Reviews
by Jarred Walton on December 7, 2005 12:05 AM EST- Posted in
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Image Quality Comparison
Comparing image quality among these cards is inherently a subjective task. Without investing in hundreds of dollars of hardware, you can't do a direct side by side comparison of the same video. In our last TV tuner round-up, Anand used content from CNN, since it loops about every 30 minutes. I'm less of a CNN-type person, so I choose to use content from various football games for the samples. Football has the added advantage of providing fast-paced video. Watching the camera pan down the football field stresses the codec, and you get the added benefit of being able to find many football games broadcast in 1080i and 720p HDTV.
Starting with the analog content, we have six sample points: FusionHDTV; MyHD using the Sempron, 4000+ and the X2 3800+; and finally two from the Theater 550 Pro. We set all configurations to use the best encoding possible, though the MyHD was CPU limited when running without the X2, resulting in very low encoding settings.
Looking at the full-size images, it should be pretty obvious that the Theater 550 provides the best analog quality. The MyHD, analog quality is terrible on the 4000+ and even worse on the Sempron. However, the quality using the X2 is actually very good. The Fusion5 analog quality isn't bad, but one thing that the image can't convey is the audio. All of our analog captures using the Fusion5 have a high-pitched squeal throughout the video. This appears to be a problem with the Fusion HDTV software, so using a different application should fix the issue. As we've already hinted, analog only users will definitely want to get a quality analog card as opposed to something like the Fusion5 or the MyHD. That brings us to the HDTV captures.
There really isn't a whole lot to say about the digital quality of the cards, other than that HDTV images are vastly superior to any analog/SDTV broadcast. As long as the card can receive the transport stream, the quality should be identical to any other card that can receive the transport stream. The card doesn't have to do any encoding, so if the signal is clean, the quality is exceptional. We didn't get an example of the Fusion5 capturing 1080i content, but there shouldn't be any difference from the MyHD capture. What we did provide is an upsampled 1080i sample. Needless to say, if you start with a 480i video, more than doubling the resolution isn't going to provide a clean result.
Incidentally, if you do get a card that can record digital transport streams, you might want a cost-effective way to play the videos on another HDTV. A $500 computer could probably get the job done, but you might not want another PC. Here's a home theater device that can play DVDs, DivX files, MPEG-1/2, and WMV9 (unprotected) videos. It can also handle TS/PS files (which are just a variant of MPEG-2). More importantly, it can do all this through the 10/100 Mbit network connection. If there's enough interest, we'll try to get one for review.
Comparing image quality among these cards is inherently a subjective task. Without investing in hundreds of dollars of hardware, you can't do a direct side by side comparison of the same video. In our last TV tuner round-up, Anand used content from CNN, since it loops about every 30 minutes. I'm less of a CNN-type person, so I choose to use content from various football games for the samples. Football has the added advantage of providing fast-paced video. Watching the camera pan down the football field stresses the codec, and you get the added benefit of being able to find many football games broadcast in 1080i and 720p HDTV.
Starting with the analog content, we have six sample points: FusionHDTV; MyHD using the Sempron, 4000+ and the X2 3800+; and finally two from the Theater 550 Pro. We set all configurations to use the best encoding possible, though the MyHD was CPU limited when running without the X2, resulting in very low encoding settings.
 MyHD Sempron |
 MyHD 4000+ |
 MyHD X2 3800+ |
 Fusion5 |
 Theater 550 |
 Theater 550 |
| Click on images to enlarge. | ||
Looking at the full-size images, it should be pretty obvious that the Theater 550 provides the best analog quality. The MyHD, analog quality is terrible on the 4000+ and even worse on the Sempron. However, the quality using the X2 is actually very good. The Fusion5 analog quality isn't bad, but one thing that the image can't convey is the audio. All of our analog captures using the Fusion5 have a high-pitched squeal throughout the video. This appears to be a problem with the Fusion HDTV software, so using a different application should fix the issue. As we've already hinted, analog only users will definitely want to get a quality analog card as opposed to something like the Fusion5 or the MyHD. That brings us to the HDTV captures.
 MyHD 720p |
 Fusion5 720p |
 MyHD 1080i |
 MyHD 1080i - upsampled 480i |
| Click on images to enlarge. |
There really isn't a whole lot to say about the digital quality of the cards, other than that HDTV images are vastly superior to any analog/SDTV broadcast. As long as the card can receive the transport stream, the quality should be identical to any other card that can receive the transport stream. The card doesn't have to do any encoding, so if the signal is clean, the quality is exceptional. We didn't get an example of the Fusion5 capturing 1080i content, but there shouldn't be any difference from the MyHD capture. What we did provide is an upsampled 1080i sample. Needless to say, if you start with a 480i video, more than doubling the resolution isn't going to provide a clean result.
Incidentally, if you do get a card that can record digital transport streams, you might want a cost-effective way to play the videos on another HDTV. A $500 computer could probably get the job done, but you might not want another PC. Here's a home theater device that can play DVDs, DivX files, MPEG-1/2, and WMV9 (unprotected) videos. It can also handle TS/PS files (which are just a variant of MPEG-2). More importantly, it can do all this through the 10/100 Mbit network connection. If there's enough interest, we'll try to get one for review.
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JarredWalton - Wednesday, December 7, 2005 - link
That's one of the vagaries of our pricing links. I'll see if I can get our pricing person to fix it. Thanks!JarredWalton - Wednesday, December 7, 2005 - link
Okay, I have the "Buy it now!" links corrected. The T55EP03 code wasn't in the pricing engine last week when I was working on this, but it is now.LoneWolf15 - Wednesday, December 7, 2005 - link
In the article, Anandtech mentioned the IOData AVPL2/DVD network converged DVD player, and said if there was enough interest, they'd test it.Count me in as interested. It looks really cool, and for a reasonable price.
By the way, good review --one of the better ones I've seen from Anandtech in recent history. Thanks for taking the time to review products that many of us have wanted, but have not had enough information to decide to pull the trigger on. Might have to think about setting aside some cash for that PowerColor card.
Dug - Wednesday, December 7, 2005 - link
What wasn't mentioned (or I didn't see it) is that the Fusion card can use so many other programs with it. You don't have to use the crappy software included. In fact I don't know of one person on AVS that does.MyHD afaik can only use the software included with it.
JarredWalton - Wednesday, December 7, 2005 - link
I'm not positive on this, so perhaps you can answer: as I understand it, the QAM decoding is done by the FusionHDTV software. Obviously, that was of major importance to me. Beyond that, though, you're right: the Fusion5 card can be used with more software than the MyHD.PrinceGaz - Wednesday, December 7, 2005 - link
You mention that PowerColor named their card the "Theatre" which is the UK spelling of the word. It seems strange that a company called PowerColor would do that, as "Color" is the US spelling -- in the UK we use "Colour". Of course it isn't important, just seems a little odd.DigitalFreak - Wednesday, December 7, 2005 - link
"The major networks all have HD channels - ABC, CBS, Fox, and NBC - but the amount of actual HD content is relatively limited."Uhh... No, it's not. Every primetime show on the Big Four networks, plus UPN & WB, are in HD, except for reality shows. Sports are not the only thing on television (thank God).
gibhunter - Wednesday, December 7, 2005 - link
I agree. Most prime-time shows are in HD. Regarding sports, most NFL games are in HD. NCAA basketball tournament plus the Big East tournament games are in HD. I also now get the TNTHD which shows NBA games in HD. INHD shows a lot of Red Sox games in HD and ESPN shows most baseball games in HD as well as most prime-time college football games and all Sunday Night NFL games are in HD.JarredWalton - Wednesday, December 7, 2005 - link
I wasn't saying that there aren't other HD broadcasts, but they're still far more SD than HD and out there, at least where I live. Most NCAA stuff is still upsampled SDTV/analog. Major league baseball is almost always an HD that I saw, at least on ESPN, and most of the pro sports are generally HD. I don't watch a lot of primetime programming, but I do know that the most popular shows are generally an HD.Honestly, what I want is to be able to tune into an HDTV channel and never see anything that isn't broadcast in widescreen. I imagine it may be several years or even a decade or more before that's the case -- there's a lot of last generation analog equipment that still works very well, for example. Here's hoping I'm wrong. :-)
ElJefe - Thursday, December 8, 2005 - link
hardly anything will be broadcasted in wide screen. HD is great for people who like hd, and for movies, and for etc etc but not the unionized broadcast television stations. they prefer 4x3 and will for many years.this is a big problem with buying a widescreen fancy tv, most likely nothing much of a person's day to day schedule of shows will be in it.
widescreen tv's are a gimic that is forced upon people. get ready for big black band on the right and left side for a long time. suxorz. (i sell tvs too :) gimic has made me a lot of cash)