The New Definitive HDTV Lag FAQ

Doesn’t the rockband test use the microphone to establish lag? Some TVs have lipsynch issues where the sound and the pic are noticably off. It can give you a ballpark idea though. The LG you tested is descent for lag but it has tested as being laggier than the LH30 variety which hang in the 2 frames and under category. The Rockband test you did showed it as having 30ms which is a bit faster than it propably, really, is.

I thought that the Rock Band 2 test is two separate tests, one for video and one for audio. I don’t understand how the mic would be used at all for the video test.

The rockband 2 test uses the Controller for the Video test. You basically have to press A each time the meter hit it. And I guess it calculate the lag from that. The result isn’t that accurate in my opinion since it also involves your reaction time as well. But yeah it is a close approximation. My TV has random lag results lol. Sometime I get 10ms or less sometime I get 34ms (Usually only get this with the drum).

Doesn’t the Rock Band 2 test use a sensor in the guitar that doesn’t need human input?

I though that was how Guitar Hero calibrated. The need for human input can greatly skew the results.

There seems to be some confusion on just what test uses what.

I know you’re just trying to help, just like myself, but the thing is if you been following the tread you would have known that I’ve done the test that you recommended and gave out details why it wasn’t accurate/Ideal vs another test.

I have done many test, done many research and shared it through out the tread just to help out and advance the tread.
Then someone who doesn’t follow the tread and haven’t done a single testing themselves will post something to contradict me without even backing it up with there own test.

I’m not talking about you specifically, just in general. If i came about it kinda harsh towards you, I apologize.

The thing is I believe that I have one of the most ideal “SF4” setup in this tread.
I am no longer looking for a monitor/TV for awhile now, I’m just here to give tips on how people can best replicate my set up.

You will be starting a tread too?

I was planing to start one because I have a test that is first post worthy.

Its includes the statement I made many month ago.

run tests? I use the tv on a frequent basis for the past 3 years lol. I The sony bravia tv doesn’t lag if you put in the game input. Yes it does lag if its not turned on in the options menu, it sure did lag for me when i didn’t know about it the 1st month or two. I usually play fighting games at tourney level play so I’d know a thing or two if the frames are off or not. The most frame precise game I’ve played is probally super smash bros melee and just about every frame counts in that game. I play it all the time on the tv and havent used my standard 480i tv since.

You guys can disagree sure but I’ve used it with no problems. I’ve heard about ms response time and what not but what really makes the difference is just the options game input and whether its on or not. Sure you can “test” the tvs but a test doesn’t quite match a person’s personal experience with it either. If there was lag it was most likely that 1) you didnt put the game input mode in or 2) you don’t have the right cables in (480p component for wii, hdmi for ps3)

I wouldn’t really know how to run a test for this either but at the least imo the tv is tournament quality

Hey guys. Figured I’d give you guys an update. I posted back on page 72. I got my HDBOX today and I set it up and everything. It works with my TV but I can still definitely feel lag. I play GGXXAC and if I had a way to test the lag, I would but I don’t have a camera for it anyway. The lag doesn’t feel as bad but yeah, unfortunately it didn’t solve my problem. :confused: I figure I will try it out on some other setups at a few friends houses and see if I get better results there with the box. I’ll keep you guys updated~

Stopped reading right there.

You are mixing up two things:

#1 - whether your TV lags or not
#2 - whether you can tell if your TV lags or not

The people in this thread want to talk about #1.

You are talking about #2 but claiming you are talking about #1.

The Rock Band 2 video lag test does use the controller, as mentioned above. I agree–since human reaction time is involved, I don’t think this is the most accurate way to test lag. However, I think if you have the game, it’s much faster and easier to use Rock Band 2 than the camera/stopwatch deal (the set-up of which I don’t completely understand). Benchmarking the numbers against a CRT TV also helped establish how much give/take there is with human reaction time involved.

I sure can tell you that the 4+ frames of lag was very noticeable (and almost unbearable), whereas the 2 frames of lag is barely noticeable (personally), and something that I accustomed myself to almost immediately.

Yeah, you are talking about 2 different tests here. THe RB2 test using the guitar’s sensor doesn’t have any button pressing.

To be specific, it offers an automatic test if you use the official Rock Band 2 guitar. The Rock Band 1 guitar doesn’t have the sensor. You won’t even see it unless you enter the menu with the right guitar I don’t think.

Cheers for the compliment earlier shinsho. I feel like I’m lacking the ability to do much as far as testing goes, so all I can do is keep up with this thread and hope I can help keep it veering off course.

I can’t wait for the new thread!!

Just thought I’d pipe up about the input lag problem. I have the Rock Band 2 Stratocaster and still play on a CRT TV 27 inch. I ran the calibration tests and it said for audio I have a delay of 14 ms and for video I have a delay of 11 ms. This is on a CRT TV, and I’ve been thinking about going HDTV. If I can find an HDTV with a lower lag than 11 ms or even close to that I’ll be satisfied.

Rock band 1,2 and Guitar Hero tests are as accurate as this guys post. Nobody should take those tests seriously.

Could not get hold of the:
EVO ASUS VH236H
BenQ E2400HD

So after talking to Shinshoryuken and reading the whole freakn thread, I’m going for the Samsung SyncMaster XL2370. Thank you very much! :pray:

Don’t listen to the guy above. The automatic test IS worth doing, if thats what you used (hold up to the screen). I have to say though, personally my RB2 tests went BERSERK when I did them on CRT, and when I say berserk I mean that the value would be completely random from anywhere between 0 and 20ms. I don’t think the sensor reads flashing lights from CRT very well.

That said, if that’s what you get consistantly, then thats basically what I get from monitors like the Evo monitor. If you go for any of the common 24 inch TN monitors you’ll be fine, but I’ve yet to find anything bigger than your TV that performs close enough to that for me. Happy hunting though.

Whoa there Tex! It was not my intention to persuade or dissuade someone from running the RB2 calibration tests. I was just reporting on my results with a CRT. My results were consistent over th 5 times i ran the test. Returning 11ms/14ms four times and 12ms/15ms once. I just wrote to say that just because you play on a SDTV, doesn’t necessarily mean you are input lag free.

Also my gameplay noticeably improved in Rock Band after the recalibration. So it did have an effect. Placebo effect, maybe?

I’m curious as to what the model of this CRT is.

There ARE HD CRTs, and some are even 4:3.