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Digital Media for Work and Leisure

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

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Digital Media for Work and Leisure

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

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

  3. Key Terms • Digital audio • Digital music • Synthesizer • Sampler • Sequencer • MIDI • Podcast • Media player software • Satellite Radio 6.1 Digital Music and Audio

  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. 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,…) Digitizing Sound 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. • A sound wave is sampled at predefined time intervals (sampling rate) the amplitude for each sample is stored as a binary number. Digital Music File10010100010010010001001001001011000101010101010010010010 1001010001001001000100100100101100010101010101001001001010010100010010010001001001001011000101010101010010010010

  6. Digital Sound For Professionals • 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. http://www.ntnu.no/gemini/2003-06e/19.htm

  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 • 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. http://www.yamaha.com/musicproduction/

  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 • 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. 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/

  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. 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 Digital Music Media • CDs, CD-Rs, CD-RWs, Mini-disks • Flash Memory • Hard Drive

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

  17. Digital Music Services Click to Compare

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

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

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

  21. Digitizing Graphics • 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. How many bits does your PC use for color? Check your display properties. Demo tool: http://lit.cs.fsu.edu/colormap.exe

  22. 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.

  23. 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.

  24. 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.

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

  26. 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.

  27. 3-D Modeling Software 3D Modeling is sometimes referred to as Ray Tracing. http://www.irtc.org/

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

  29. http://www.this-wonderful-life.com/index.htm Real or computer generated?

  30. 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/index.html

  31. Defines avar for blinking eyelid.

  32. Digital Animation Software • Softimage/XSI v3.0 $13,000 http://www.softimage.com/products/face_robot/video_gallery • 3ds + Reactor = $1,795 http://www4.discreet.com/showandtell/showandtell.php?id=465# • Lightwave 3D, $1,595 http://www.newtek.com/products/lightwave/lw-gallery/videos/index.html • Renderman $ 5,500 https://renderman.pixar.com/ Check links for cool demos.

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

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

  35. 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.

  36. 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

  37. Valuable Viewing, Sharing, and Printing Services • http://photos.yahoo.com • http://picasa.google.com • www.kodakgallery.com • http://mobile.yahoo.com/photos • http://target.photos.yahoo.com

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

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

  40. Portable Digital Video Hardware • Portable Media Player (PMP)

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

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

  43. Interactive Media in Education • Authorware provides a toolkit for creating interactive 2-D tutorials and training for delivery on computer. • Software from companies like Mind Avenue provide tools for creating 3-D tutorials and training. http://www.mindavenue.com

  44. Interactive Media in E-commerce http://www.toyota.com/prius

  45. Game Consoles • Video game consoles, such as the Nintendo GameCube, the Sony Playstation 2 (PS2), and Microsoft’s Xbox,are high-powered multiprocessor computers designed to support 3D interactive multimedia.

  46. Portable Gaming Hardware • PlayStation Portable • Nintendo DS

  47. Interactive TV • Interactive TV is a digital television service that includes one or more of the following: • Video on demand • Personal video recorder • T-Commerce • Internet access on TV • Video games over TV

  48. The Media Center PC • Windows XP Media Center Edition runs on media PCs to provide the following services: • Television Receiver • Electronic program guide • Web browser • Personal video recorder • DVD Player • Digital Music Player • Digital Personal Photo and Video Library

  49. Don’t forget to turn your phone on!! Chapter 6 Questions?

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