Digital Media for Work and Leisure

1. Digital Media for Work and Leisure Digital Music and Audio Digital Graphics Digital Photography and Video Interactive Media Please discontinue use of cell phone and turn off ringer Chapter 6

2. Digital Media Digital Media encompasses digital technologies of all kinds that serve and support digital music, video, and graphics.

3. 6.1 Digital Music and Audio Key Terms • Digital audio • Digital music • MIDI • Podcast • MP3 • DRM • Media player software • Satellite Radio

4. Digital Audio and Music Digital audio is any type of sound, including voice, music, and sound effects, recorded and stored digitally as a series of 1s and 0s. Digital musicis a subcategory of digital audio that involves recording and storing music.

5. Digitizing Sound A sound wave is sampled at predefined time intervals (sampling rate) the amplitude for each sample is stored as a binary number. 30 20 30 30 30 10 20 20 20 20 amplitude 0 12 10 10 10 4 2 2 -10 0 0 0 0 -1 -3 -4 -4 -20 -10 -10 -10 -10 -10 -30 10 20 -18 -18 -20 -20 Milliseconds (ms) -28 -30 10 20 -30 1. An analog sound wave is… 2. “sampled” at regular time slice, and 3. stored as a sequence of numeric values… (30,-10,-28,-4,20,…) The sampling rate for audio CDs is 44,100 samples per second, whereas the sampling rate of your voice on a digital cell phone is 8000 times per second. Digital Music File10010100010010010001001001001011000101010101010010010010 1001010001001001000100100100101100010101010101001001001010010100010010010001001001001011000101010101010010010010

6. Digital Sound For Professionals http://www.ntnu.no/gemini/2003-06e/19.htm Digital Voice Recorders are used in many professions to capture dialogue for future reference. Digital audio is used in Science, Law Enforcement, Entertainment and Communications Digital audio techniques are used in speech and voice recognition.

7. Digital Sound For Professionals Forensic audio uses digital processing to denoise, enhance, edit, and detect sounds to assist in criminal investigations.

8. Digital Music & Sound Sound Production Studio Westlake Audio Studio in Hollywood, CA uses millions of dollars worth of digital audio equipment to produce music CDs, sound tracks for motion pictures, and many other audio services.

9. Digital Music Production Tools http://www.yamaha.com/musicproduction/ A synthesizer electronically produces sounds designed to be similar to the sounds of real instruments; they can also produce new sounds unlike any that a traditional instrument could produce. A sampler digitally records real musical instrument sounds and allows them to be played back at various pitches using an electronic keyboard. A sequencer allows musicians to create multitrack recordings with a minimal investment in equipment.

10. MIDI The musical instrument digital interface (MIDI) protocol provides a standard language for digital music devices to use in communicating with each other.

11. Podcasting http://www.podcastalley.com/ http://www.ipodder.org/ Record your own podcasts: http://www.jakeludington.com/podcasting/20050222_recording_a_podcast.html Windows: http://audacity.sourceforge.net/ Mac: http://www.apple.com/ilife/garageband/ A podcast is an MP3 audio file that contains a recorded broadcast distributed over the Internet. A podcast aggregator is software that allows you to subscribe to podcasts.

12. Discussion: Mainstream Media vs. Consumer Generated Media PROS & CONS Dan Rather on http://www.cbsnews.com A blogger interview also see http://www.current.tv

13. Digital Audio File Formats Town.mid

14. Digital Music Media CDs, CD-Rs, CD-RWs, Mini-disks Flash Memory Hard Drive Creative's Sound Blaster Wireless Music (listed at $250) is the first digital media receiver to offer music-file navigation via a remote control with a large LCD. The idea is that once you've configured the small, modem-size base unit to work with your Wi-Fi network, you'll be able to stream music over the system to any stereo or even a set of powered speakers. http://reviews.cnet.com/4521-6531_7-5021436-2.html?tag=dir.top

15. Players and Software Media player software such as iTunes, Windows Media Player, and RealPlayer, allows users to organize and play digital music, audio, and video files on PCs and media devices.

16. Digital Music Distribution Channels Purchase new on CD Internet music services Per-song Monthly Subsciption Satellite Radio Illegal methods File sharing networks Copying CDs 99 cents $14.95 pmor 99 cents $12.95 pm $9.99 pm

17. Digital Rights Management (DRM) • DRM provides a way to control if and how many times a digital music file can be copied. • Fairplay: Apple’s DRM technology used in m4p files. • Janus: Microsoft’s DRM technology used in wma files (wma-drm 9.0). • Zune wma-drm 9.1: Microsofts new DRM for Zune not compatible with Janus. http://en.wikipedia.org/wiki/Digital_rights_management

18. Wma drm 9.0 Online Stores AOL Music Now Yahoo! Music Unlimited Musicmatch Napster Rhapsody To Go Ruckus Sony Music Store URGE Virgin Digital Tesco Downloads M4P Stores iTunes Online Music Distribution • Wma drm 9.1Stores • Zune • No DRM Stores • Amazon • eMusic.com • iTunes Plus The public’s reaction to DRM…

20. Audio File Formats & Players http://en.wikipedia.org/wiki/Audio_file_format

21. 6.2 Digital Graphics Key Terms • Digital graphics • Pixels • Bit-mapped graphics • Vector graphics • Scientific visualization • CAD • 3D Modeling Software

22. Digital Graphics Digital graphicsrefers to computer-based media applications that support creating, editing, and viewing 2D and 3D images and animation.

23. Digitizing Graphics Digitalimages are made up of a grid of small points called pixels (short for picture element).

24. Digitizing Graphics How many bits does your PC use for color? Check your display properties. Demo tool: http://pic.fsu.edu/colormap.exe Colors for pixels are expressed using numbers that represent combinations of intensities of red, blue, and green, with one byte (256 levels of intensity) for each. Using three bytes provides 16,777,216 (224) possible colors.

25. Graphics File Formats Vectorgraphics filesstore geometric descriptions that define all the shapes in the image. Bit-mapped graphics files store the color of each pixel in the image.

26. Uses of Digital Graphics Electrons in a nanotube • Creative Expression • Presenting Information • Communicating Ideas • Exploring New Ideas • Scientific visualization uses computer graphics to provide visual representations that improve our understanding of some phenomenon.

27. Uses of Digital Graphics • Entertainment • Documenting Life • Designing Real-World Objects • Computer-assisted design (CAD) software assists designers, engineers, and architects in designing three-dimensional objects.

28. Vector Graphics Software Vector Graphics Software, or drawing software, provides tools to create, arrange, and layer graphical objects on the screen to create pictures.

29. 3D Modeling Software 3D Modeling Software provides graphics tools that allow artists to create pictures of realistic 3D models. Objects are created using a wire framework. Surface textures are applied to the objects. Light source is defined. The scene is rendered – lighting, shapes, and surfaces are calculated to create a 3D appearance on a 2D display.

30. 3-D Modeling Software 3D Modeling is sometimes referred to as Ray Tracing. http://www.irtc.org/

31. Real or computer generated? http://www.strata.com/showcase.asp

32. www.liamkemp.com Real or computer generated?

33. Computer Animation 2D Animation Animated GIFs Macromedia Flash 3D Animation Involves rendering 24 3D images per second. Expensive Software Avars are used to provide hinges for movements of characters. http://www.pixar.com/howwedoit

34. Defines avar for blinking eyelid.

35. Digital Animation Software Softimage/XSI v3.0 $13,000http://www.softimage.com 3ds + Reactor = $1,795http://www.discreet.com Lightwave 3D, $1,595 http://www.newtek.com Renderman $ 5,500 http://renderman.pixar.com/ Check links for cool demos.

36. 6.3 Digital Photography and Video Key Terms • Photo-editing Software • Video-editing Software

37. Digital Photography Digital photos are created, or acquired, using a digital camera or scanner and are saved as bit-mapped images.

38. Photo Editing Photo-editing software, such as Adobe Photoshop Elements and Microsoft Picture It!, includes special tools and effects that you can use to improve or manipulate bit-mapped photograph images.

39. Today’s technology makes it easy to create realistic looking faked photos – thus photos are no longer trusted as evidence in court. http://www.worth1000.com

40. Valuable Viewing, Sharing, and Printing Services http://picasa.google.com www.kodakgallery.com www.flickr.com www.smugmug.com

41. Digital Video Camcorder Buying Guide Digital video cameras, called digital camcorders, are available in a wide range of prices with wide-ranging capabilities.

42. Video Editing Video editing storyline Video-editing softwareallows professional and amateur videographers to edit bad footage out and rearrange the good footage to produce a professional-style video production.

43. Portable Digital Video Hardware Portable Media Player (PMP)

44. 6.4 Interactive Media Key Terms • Interactive media • Video game consoles • Interactive TV

45. Interactive Media Interactive mediarefers to digital media presentations that involve user interaction for education, training, or entertainment.

46. Interactive Media in Education Authorware provides a toolkit for creating interactive 2-D tutorials and training for delivery on computer. Software like “Making History” is used to enhance education.

47. Interactive Media in E-commerce

48. Game Consoles Video game consoles, such as the Nintendo Wii, the Sony Playstation 3 (PS3), and Microsoft’s Xbox 360,are high-powered multiprocessor computers designed to support 3D interactive multimedia.

50. Portable Gaming Hardware PlayStation Portable Nintendo DS