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Digital Cre8or Unit D Lesson 1

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Lesson 1 - Introduction to Digital Video

This first lesson of Unit D (Digital Video) covers the differences between digital and analogue video, the different ways of copying DV from one device to another, and things like frame rates, formats and aspect ratios.

This material is adapted from David Baugh's original course materials for Digital Cre8or.

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Digital Cre8or Unit D Lesson 1

  1. 1. Welcome to Digital Cre8or!
  2. 2. My Details • Julian Prior • F34a Wed and Thurs • AF07 Mon, Tues, Fri • julian.prior@newcollege.ac.uk
  3. 3. Course Overview Mondays 3.30-5.30 G46 Unit D - Digital Video (Julian Prior) Unit F - Sharing with Optical Media (Julian Prior) Tuesdays 10.30-12.30 G46 Unit C - Moving Image Language (Ron Morton) Unit A - Digital Audio (Julia Tucknott)
  4. 4. Expectations 1. 1 Assignment each week + blog entry (6 for each unit) which should be finished during the lesson. If not it must be finished before the next class. 2. No food or drink allowed in room. 3. 15 min break during lesson - opportunity for food, drink, Facebook, online game etc. but only during the break. 4. Be prepared to work independently but ask for help when needed. 5. Work together co-operatively - listen & learn from each other (but no copying!). 6. Treat each other with respect - zero tolerance to any racism, sexism, homophobia or other forms of discrimination.
  5. 5. Your Expectations In pairs write down your expectations of the course: • Your name • Why you have taken this course (be honest!) • What you would like to get out of the course (job skills? new friends? GCSE in digital creativity?) • Any experience you have with creating something digital (e.g photos, movies, songs/audio, DVD, blog etc. - describe this experience)
  6. 6. Digital Video Unit D Lesson 1 - Introduction
  7. 7. Unit Overview 1. Introduction to digital video technology 2. Plan a digital video project 3. Take effective digital video footage 4. Import footage, produce rough cut 5. Edit video using iMovie 6. Add audio and export project
  8. 8. Your Task • Using your list of expectations create a 1 minute video introducing yourself and talking about what you hope to get from the course; • Include a title and a piece of audio from the sound library in iMovie; • When you have finished export (‘share’) your movie as an mp4 that can be played on an iPod/iPhone.
  9. 9. Unit D - Digital Video Lesson 1 - Introducing Digital Video
  10. 10. Lesson Objectives By the end of today’s lesson you should be able to: 1. Understand what ‘digital’ video (DV) is; 2. Explain how it can be copied from one device to another; 3. Explain how it can be played on a computer; 4. Understand and outline how one digital video can vary from another one in quality and appearance; 5. Complete Assignment 1 and your weekly blog; 6. Start thinking about some ideas for your 1 min film.
  11. 11. 1. What is Digital Video?
  12. 12. Analogue video
  13. 13. Analogue video Digital video 011001110010101001001000110011100 101010010010001100111001010100100 100011001110010101001001000110011 100101010010010011001110010101001 00100 binary code
  14. 14. Digital Video differs from Analogue Video in 3 main ways:
  15. 15. Digital Video differs from Analogue Video in 3 main ways: Quality
  16. 16. Digital Video differs from Analogue Video in 3 main ways: Quality Longevity
  17. 17. Digital Video differs from Analogue Video in 3 main ways: Quality Longevity Editing
  18. 18. (a) Quality Tape Format Analogue or Digital? Max Lines of Resolution VHS Analogue 240 8mm Analogue 280 TV (pre-digital) Analogue 300 S-Video/SVHS Analogue 400 Digital Satellite TV Digital 400 MiniDV Digital 500 High-Definition Digital 720 or 1080 David Pogue and Aaron Miller iMovie ’09 & iDVD: The Missing Manual (2009)
  19. 19. (a) Quality Analogue video degrades in quality when copied
  20. 20. (a) Quality Image degradation e.g video ‘noise’ Analogue video degrades in quality when copied
  21. 21. (a) Quality Image degradation e.g video ‘noise’ Analogue video degrades in quality when copied
  22. 22. (a) Quality ‘Perfect’ copies each time Image degradation e.g video ‘noise’ Analogue video degrades in quality when copied
  23. 23. (a) Quality ‘Perfect’ copies each time Image degradation e.g video ‘noise’ Analogue video degrades in quality when copied
  24. 24. (b) Longevity 10-12 years? 30+ years? signal degrades no signal degradation
  25. 25. (c) Editing Linear Editing (Analogue) Non-Linear Editing (Digital) http://en.wikipedia.org/wiki/Non-linear_editing_system
  26. 26. 2. How can we copy DV from one device to another?
  27. 27. Different types of Camcorder Type Storage Issues cheap, excellent quality, must MiniDV mini cassette tape rewind & FF to access material & imports in real time. only 20 mins of video per DVD mini DVD disc, don’t work in Macs holds several hours, must be Hard Drive Hard Drive imported to computer when full Compact SD Memory Card cheap, good quality, poor audio Digital Camera SD or Compact Flash cheap, good quality, poor audio always available, quality not Mobile Phone SD or onboard memory great, poor audio
  28. 28. A DV camera can capture video to: You can copy DV from one device to another using: • Digital Video tape (miniDV tape). • (mini) DVD. • USB 2.0 • Hard Drive. • ‘Firewire’ 400 or 800 • Removable media such as an SD card. • Hard Drive (see above) • A built-in webcam e.g iSight on Macs. • Removable media such as an SD card. • Bluetooth?
  29. 29. 3. How can DV be played on a computer?
  30. 30. Computer based video players VLC Player
  31. 31. 4. How does DV vary according to quality and appearance?
  32. 32. File format File Extension How it is used MPEG1 .mpg For web downloads and Video CDs MPEG2 .m2v DVDs MPEG4 (AVCHD .mp4 Web downloads, mobile phones and iPods, newer or H.264) hard drive camcorders QT Movie .mov Web downloads, web streaming and CD ROM AVI .avi Computer use and some digital cameras Windows Media .wmv Computer use, web streaming and download, CD ROM RealNetworks .rmp Web streaming and download Media 3G video .3gp Mobile phone video format DV Stream .dv A very high quality form of digital video for editing
  33. 33. Frame rates 25 fps action 12 fps action
  34. 34. Frame rates
  35. 35. Window Size/Pixels
  36. 36. Aspect Ratio 4 X 3 Standard format 16 X 9 Widescreen format
  37. 37. Assignment One see your workbook for more information

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