Has anyone attempted to confirm the input lag when connecting dreamcast via its vga connection to a newer model monitor?
Obviously the crt models were fine but, now that everything is lcd/led, has anyone tested? I ask because I am considering doing a legacy tournament and 3 of the 4 games I am having can all be played on DC.
If the anwser is no, is there a particular method suggested so that I can get reliable results? I would really love to just set up a bunch of asus monitors with DCs versus having to find! and haul! a bunch of crt tvs lol
Any advicd would be great, thanks!
Are you doing a direct DC VGA to a LCD HDTV or monitor?
Assuming your TV/Monitor has a good Analog to Digital converter there should be no lag and VGA bypasses some image post processing.
You still have Scaling as the output of the DC VGA is 480p. So the monitor will scale up the 480p image to the monitors natural resolution.
I don’t have hard figures to show you but there maybe 2ms of lag , much less than a frame . Scientifically there always going to be some lag but most of this is undetectable by human senses.
You will lag alot less that a HDMI connector from a PS3 or Xbox 360.
I say go for it, as you get the best image quality you can get from a Dreamcast, other wise you have to convert Composite Video (Yellow RCA video Connector) to a format that your monitor can take.
And the conversion from composite to VGA will cause some lag.
I know for Xbox 360 VGA is preferred over composite (3 RCA video connectors)
Thanks for the reply. Playing on the set up myself, it “feels” very comfortable. But for a tournament people are going to want more confirmation than feels lol
To try testing it, I considered getting an old crt monitor off craigslist and splicing the vga connection with a powered splitter. From there, what would i need to test?
there different test methodology, not all are mentioned here.
One method is
If you have something with a count down timer on your DC, set up the LCD and CRT side by side and bust out a video camera and start recording.
Something that does milliseconds is preferred.
method 2
something with timing is a key like street fighter, this works best with a high speed camera (records at a high frame rate) and play back that video at a slower speed.
according to these guys you get a frame of lag on a LCD screen vs a CRT screen due to how the image is drawn.
Alright, that is the anwser I needed, I appreciate the help. On to testing!