About this blog

To disseminate some of the easiest digital video training resources that exist on the Internet for teachers. These sites are easy to use, fun and can be immediately applied in many different teaching contexts. Teachers will be shown the sites and get the chance to use the sites themselves. Also teachers will able to add more materials, make comments and evaluate the current materials.

Topics:
  1. Digital Video Introduction
  2. Glossary
  3. System requirements
  4. Files types
  5. The Use Of Digital Video And Media To Enhance Learning (You tube embedded video)
  6. Mac or PC - 15 short Ads Mac vs PC (You tube embedded video)
  7. Windows Movie Maker 2 (For Vista)
  8. Capturing Clips in Windows Movie Maker (You tube embedded video)
  9. Connecting Your DV Camera To Your Computer (You tube embedded video)
  10. Embed YouTube Video into PowerPoint (You tube embedded video)
  11. Windows Movie Maker
  12. How to save your movies to your computer
  13. How to download movies from your digital camera to your PC
  14. What you need to make movies
  15. How to do edit your videos (You tube embedded video)
  16. Digital Video Standards

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Digital Video Standards

The world of digital video standards is a complicated one, with many different standards groups actively producing sometimes overlapping specifications. Many aspects and applications of digital video are now being considered as eligible for standardization. Other aspects of the technology haven’t been standardized, yet common industry practices are emerging. It will be many years still until the specifications for digital video fully stabilize.

Standard Definition Video

With the evolution toward the superior nature of digital video, international standards were developed for digitizing analog standard definition video compatible with both 525 line video standards (NTSC) and 625 line standards (PAL).

NTSC and PAL at a glance:


PAL
(Phase Alternating Line). The current analog television system used in most of Europe and much of the world.

NTSC
(National Television Systems Committee). The current analog television system standard used in the U.S. and several other countries, mostly in the Americas and parts of Asia (including Japan), although variations are used in different countries.

High Definition Video

What Is High Definition Video?

The term high definition today refers to formats that have more resolution than standard definition (SD) video. In this context, when we discuss resolution its meant to describe how many scan lines (horizontal rows of picture information) make up the video image. As we looked at in an earlier section, the two main SD variations, NTSC and PAL, use 480 lines and 576 lines (respectively).

HD video today:

  • There are two resolutions: 1080 or 720 scan lines.
  • All HD video is widescreen using an aspect ratio of 16x9, also expressed as 1.78:1.
  • Video is scanned either progressively or interlaced.
  • There are multiple possible frame rates: 23.98, 24, 25, 29.97, 30, 59.94 and 60.



Source: http://www.moviola.com/sd_analog_standards
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