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Setting up a video projector isn't as easy as you first may think. Leaving the settings on the default values may not give you the best image possible. by using Test Patterns along with the colour/brightness/contrast and other settings on your... Read This Article 
If you'd like to know about Scan Converters (or Down Converters) then take a look at our scan converter page. This talks about converting a computer signal in to composite video and how it can be mixed with other composite signals Read This Article 
Many times you want to mix a computer signal (eg a presentation or song words) with a set of video cameras and/or dvd players. Video cameras etc, generally use Composite video (the little phono connector) and a computer will use higher resolution... Read This Article 
Throughout 2006 High Definition has grown, and it's set to grow even faster in 2007/8. at the begining of 2006 you could by a High Definition TV, but there was noone broadcasting High Definition programs, by the end of 2006, you could purcase High... Read This Article 
We have used the Martox DualHead2go device at a couple of youth event in Reading - What this provided was a cheap and simple way to have a 16 by 6 foot screen! -that’s pretty wide. The reason behind all this is to provide a far cheaper alternative... Read This Article This is a table of the popular video formats and their resolution Read This Article
What is Feedback? Feedback is the screeching/squealing/hooting sound heard when there is an accidental loop in the PA system. That is when the sound from a microphone is amplified and fed to the speakers and then picked up again by the microphone,... Read This Article | High Definition Church |
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| Written by Andrew | ||||||
| Friday, 10 November 2006 08:32 | ||||||
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Read on, and hopefully theses and other questions will be answered!
This article is still under construction!
{mospagebreak title=What is HD?}What is HD?
HD stands for High Definition; a higher resolution than the 'standard' TV pictures we've been used to. -This means more detail and clarity in the videos/presentations we watch. Resolution DifferencesWhen it comes to what this higher resolution is, things get a little complicated! HD covers a range of resolutions, at the moment an image can have 720 or 1080 vertical lines in 16:9 widescreen format, resulting in pixel resolutions of 1280x720 and 1920x1080. So, compare this to our standard video resolution (PAL) of 720x576 HD is much higher. The resolution of most current video projectors is 1024x768 (XGA), which is simular, but still not as high as the 720 format. All HD videos are widescreen 16:9 compared to Standard video of 4x3.
As you can see, HD1080 is huge compared to PAL - it has over 5 times as many pixels. Unlike standard definition, pixels aren't being stretched to fit the 16:9 image. You won't see letterboxing, except on extra-wide movies like, if you're watching HD content that's been produced in the older 4:3 aspect ratio you'll get black bars on the side instead. |
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| Last Updated ( Monday, 18 August 2008 12:33 ) |
I am using the Humax FoxSat HD set top box at home.
See www.freesat.co.uk and www.humaxdigital.com/freesat/
I have yet to see a HD projector in action but I imagine this will make church screens a lot more readable with far better quality pictures, graphics and videos etc.