Digital TV for Beginners

Digital TV for Beginners Good news digital TV is here! What are the benefits of digital TV, you ask? Well, for one thing resolution is much improved. Currently, analog television provides up to 500 lines of resolution. The resolution of an analog TV is 720 x 486 with a total of 349,920 pixels. TV digital high definition, in particular TV resolution up to 1920 x 1080 pixels. Total 2073600 pixels. This means that the dissolution of high-definition TV is 6 times higher than that of analog television. In addition, the pixel in analog television resembles that of a high building, which is large and rectangular. HDTV pixels are 4 times smaller which means that 4 times more pixels in a given area and four times more resolution. This means that there are sharp and clear. High Definition TV has an aspect ratio of 16:9 while analog TV has an aspect ratio of 4: 3 On our field of vision is better than a broader point of view. We have a rectangular field of vision and not as a starting point. This means that our eyes can see from the left and right and not the top and bottom. A large screen is filled with our most visual field and a better image. Movies and films are also closer to 16:9, if these films will be shown on television should not be cut off your screen or the annoying black bars on the TV. High definition television, you can enjoy Dolby Digital surround sound. This means that you can choose to 5.1-channel audio to the left, center and right front speakers and two rear surround, and a subwoofer. It is not that wonderful? Conventional analog TV uses interlaced display which show images of 60 fields or 30 frames a second. Each frame is divided into two zones, consisting of only odd or even lines of 240 lines. The odd lines are displayed and the process of scanning from left to right, then from top to bottom. The whole process is repeated for the lines. The process creates artifacts such as visible scan lines and will become more apparent as the size of the TV screen is increased. The flickering of our tired eyes. Digital TV support progressive scan displays 60 frames per second, instead of only 60 half-frames in one second. It is easier to get a picture with less flicker and scan lines are hardly visible. Digital means that you have a wider choice of programs than ever. The transmitter can transmit standard definition television programming over. The transmission is limited bandwidth for the transmission of their programs. They use MPEG2 compression technology called unnecessary parts of an image. Take the example of a beach scene where someone saunters across the beach. The only object that is the person. As the data is used only for the movement of the person from left to right, while the old data will be used for the sky, the sea and the beach. Remember your disappointment on seeing a NSTC TV screen with snowy images / ghostly images? This is because the transmission of the signal is blocked or the transmitter is too far away. Now, do not have this problem if you have a digital TV. The images are both perfect and not do it at all. This is the kind of digital technology that is 1 or 0 in the course of time to come, digital television would be the use of interactive television. Instead of sitting in front of the TV there is a bed of potatoes, which gives you the option of online shopping, games and other activities to enjoy. About the Author The author is the webmaster of digiteevee.com for the use of technology in your everyday life.