HDTV: Everything You Need to Know

Although the technology is modern and will sell more this Christmas this year, digital terrestrial television, DVB-T, you can start preparing for the fashion next year, HDTV, HD-TV. Although we have many products available in compatible with HDTV, probably the next-generation consoles are what will surely be the starting of this technology in our country.

Technical specifications of the HDTV

HDTV

The most important feature is the greater attentionCourtesy of HDTV compared to existing systems. If the PAL system used in Spain has a resolution of 768 × 576 pixels, the HDTV using two different resolutions: 1920 × 1080 1280 × 720 pixels, always with the 16:9.
These are high resolution from the compressed signal is achieved by an MPEG-2 or H.264. The sound is transmitted, and offers Dolby Digital 5.1 for popular speaker systems home theater use. The differences between 1080i and720p Many are found in the Xbox 360 that saw two different supported resolutions: 1080i and 720p. What is the difference between them and what does it mean that I and p? These decisions, which correspond to the two we have discussed it with HDTV and to see the number of lines. I indicates that the signal is interlaced, which means that each frame only half the lines on the screen (with a yes and no) is based, found that 540 linesTime switch. Repeating this process many times and very quickly our brain is able to decode it, and we can see the images properly. The P stands for but, in sequence, indicating that all the lines are drawn image, one by one. Which is better? The theme is a bit 'subjective, but 1080i is for images with little motion or slow motion to recommend, as fast movements can distort the image. In turn, this resolution provides more details and a betterImage. However, the 720p is more suitable for camera shake. For example, on ABC and ESPN use 720p because it offers better results in transmission of sporting events where the cameras often move at high speed. How to watch HDTV? As our colleague Javier commented on the special Freeview, this is not to see to HDTV DVB-T (at least in Spain) not to transmit the bandwidth required in HD. Therefore, the most common systemsto watch HDTV cable and satellite. In the case of Spain, Digital Plus has been doing test transmission in HD via satellite, while Jazztel plans to forward platform ADSL 2 +. Of course you need a TV that supports that resolution, although many new models are starting to wear, you should check if the TV you buy an HDMI (High Digital Multimedia Interface) features. HDTV: Everything You Need to Know

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