View Full Version : Software to calibrate HDTV from laptop connected to HDTV via HDMI??


LukeS.
09-14-09, 04:01 AM
Hi,

I read the stickies and I see there is a lot of DVD calibration and probe\meter options but I do not see any software that you can run on a computer connected to a HDTV to display test patterns (without using a calibration meter\probes etc). Does software for this exist?

I don't own a DVD player with HDMI out and I would like to stick to the digital inputs when calibrating the HDTV, I figured using analog inputs would add another variable consider it is converted internally with a ADC and color, brightness, etc will be different form the HDMI inputs that I use for Verizon FIOS digital TV.

Thanks ahead of time for any advice

glaufman
09-15-09, 09:12 AM
Hi,

I read the stickies and I see there is a lot of DVD calibration and probe\meter options but I do not see any software that you can run on a computer connected to a HDTV to display test patterns (without using a calibration meter\probes etc). Does software for this exist?

I don't own a DVD player with HDMI out and I would like to stick to the digital inputs when calibrating the HDTV, I figured using analog inputs would add another variable consider it is converted internally with a ADC and color, brightness, etc will be different form the HDMI inputs that I use for Verizon FIOS digital TV.

Thanks ahead of time for any advice

Well, if you read the stickies you probably know this already, but here goes:
Nothing wrong with what you want to do really, but some things you should be aware of:
Trying to calibrate for any TV service (cable, FIOS, SAT etc) is a worthy goal but not completely practical, as the networks they're delivering to you cna and will be all over the map with their own calibrations... that being said, you're on the right track wanting to calibrate using a digital input, using the computer, except... I have yet to hear of a computer where one could be guaranteed the video card wasn't doing anything to alter the picture before outputting it to HDMI... makes it difficult to use computers as signal generators, unless your content is going to be generated by the computer as well...
At any rate, if you're not using sensors/probes, you can't do a full calibration (which would include grayscale, gamma, color points)... all you can really do is basic user settings (brightness, contrast, color, tint, sharpness...) in which case, you can use any of the commercially available disks (DVE, Avia, etc...) or try downloading AVSHD709 (run a search for it)... these will all give you some sort of instructions to get you started...

sotti
09-15-09, 11:48 AM
This depends alot on your video chipset.

SpectraCal has a really good software pattern generator.

If you can figure out if your video chipset can output good levels then you're in business.