Chapter 6 Digital Media for Work and Leisure

Chapter 6 Digital Media for Work and Leisure n n Digital Music and Audio Digital Graphics Digital Photography and Video Interactive Media song I Turn My Camera On from the album Gimme Fiction by Spoon. Please discontinue use of cell phone and turn off ringer Succeeding with Technology

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

6. 1 Digital Music and Audio Key Terms • Digital audio • Digital music • Synthesizer • Sampler • Sequencer Succeeding with Technology • MIDI • Podcast • Media player software • Satellite Radio

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

Digitizing Sound Example 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. amplitude n A sound wave is sampled at predefined time intervals (sampling rate) the amplitude for each sample is stored as a binary number. 30 30 30 20 20 20 10 10 10 0 30 20 12 -10 -20 -20 -30 10 20 Milliseconds (ms) 1. An analog sound wave is… Succeeding with Technology -30 10 2. “sampled” at regular time slice, and 20 -30 10 0 -4 -10 20 -10 -4 -10 2 4 2 0 -1 -3 -10 -18 -28 3. stored as a sequence of numeric values… (30, -10, -28, -4, 20, …) -18 Digital Music File 100101000100100100 10110001010101001001001010010 0100100100 10110001010010

Digitizing Sound Definitions you need to know n Analog to Digital Conversion (ADC) ¡A process where sound waves are represented with numbers or digitally converted ¡Also known as Sampling n Digital to Analog Conversion (DAC) ¡A process where digitized sound is transformed back into its analog form Succeeding with Technology

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

- b la ’s by Ab CIS N Digital Sound For Professionals n Forensic audio uses digital processing to de-noise, enhance, edit, and detect sounds to assist in criminal investigations. Succeeding with Technology

Digital Music & Sound n 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. Succeeding with Technology

Digital Music Production Tools n 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. n A sampler digitally records real musical instrument sounds and allows them to be played back at various pitches using an electronic keyboard. n A sequencer allows musicians to create multitrack recordings with a minimal investment in equipment. http: //www. yamaha. com/musicproduction/ Succeeding with Technology

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

Podcasting n A podcast is an MP 3 audio file that contains a recorded broadcast distributed over the Internet. n 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/20050 222_recording_a_podcast. html Windows: http: //audacity. sourceforge. net/ Mac: http: //www. apple. com/ilife/garageband/ Course Port – Podcast Flash Cards Succeeding with Technology

Digital Audio File Formats File Extension Format Description . aac. m 4 p Advanced Audio Coding Apple compressed audio file format. A new compressed file format that is more efficient than MP 3. Used with Apple’s i. Tunes music service. . au Audio file format used mostly on Unix and Apple operating systems. . cda Compact Disc Audio Used to store music on traditional music CDs using a storage technology different from typical computer files. . mid MIDI File format containing MIDI commands to control keyboard synthesizers and other electronic instruments. . mp 3 MP 3 A popular compressed audio file format used on file sharing networks and the Internet. Compresses. cda files by a factor of 10 - 14. http: //entertainment. howstuffworks. com/mp 31. htm . ra Real Audio Format designed for streaming audio over the Web. . wav Waveform Audio Windows PC audio file format. . wma Windows Media Audio Microsoft Windows compressed audio file format. A new compressed file format that is more efficient than MP 3 and provides the distributor with control over copying of the file. Used with most Internet music services other than Apple i. Tunes. Succeeding with Technology Town. mid

Digital Music Media n CDs, CD-RWs, Mini-disks n Flash Memory n 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 Succeeding with Technology

Players and Software Media player software such as i. Tunes, Windows Media Player, and Real. Player, and soon the latest ZUNE allows users to organize and play digital music, audio, and video files on PCs and media devices. Microsoft rolls out three new Zunes Succeeding with Technology

Digital Music Distribution Channels n Purchase new on CD n Internet music services ¡Per-song ¡Monthly Subscription 99 cents $14. 95 pm or 99 cents n Satellite Radio n Illegal methods ¡File sharing networks ¡Copying CDs Record companies win music sharing trial Succeeding with Technology New ZUNE $12. 95 pm $9. 99 pm

Digital Music Services Click to Compare Succeeding with Technology

6. 2 Digital Graphics Key Terms • Digital graphics • Pixels • Bit-mapped graphics • Vector graphics Succeeding with Technology • Scientific visualization • CAD • 3 D Modeling Software

Digital Graphics n Digital graphics refers to computer-based media applications that support creating, editing, and viewing 2 D and 3 D images and animation. Succeeding with Technology

Digitizing Graphics n Digital images are made up of a grid of small points called pixels (short for picture element). Succeeding with Technology

Graphics File Formats n Vector graphics files store geometric descriptions that define all the shapes in the image. n Bit-mapped graphics files store the color of each pixel in the image. Click for Resize Example Succeeding with Technology

Uses of Digital Graphics Electrons in a nanotube n n 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. Succeeding with Technology

Uses of Digital Graphics n Entertainment n Documenting Life n Designing Real-World Objects ¡ Computer-assisted design (CAD) software assists designers, engineers, and architects in designing threedimensional objects. Succeeding with Technology

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

3 D Modeling Software n 3 D Modeling Software provides graphics tools that allow artists to create pictures of realistic 3 D 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 3 D appearance on a 2 D display. Succeeding with Technology

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

Real or computer generated? http: //www. strata. com/showcase. asp Succeeding with Technology

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

Computer Animation n 2 D Animation ¡Animated GIFs ¡Macromedia Flash Anothe r. E D’Fusio xample: Tota n l Immers n 3 D Animation ¡Involves rendering 24 3 D images per second. ¡Expensive Software ¡Avars are used to provide hinges for movements of characters. ¡ http: //www. pixar. com/howwedoit/index. html COMING SOON: The Nightmare Before Christmas Digital 3 D Succeeding with Technology ion

Defines avar for blinking eyelid. Succeeding with Technology

Digital Animation Software n Softimage/XSI v 3. 0 $13, 000 http: //www. softimage. com/products/face_robot/video_gallery n 3 ds + Reactor = $1, 795 http: //www 4. discreet. com/showandtell. php? id=46 5# n Lightwave 3 D, $1, 595 http: //www. newtek. com/products/lightwave/lwgallery/videos/index. html n Renderman $ 5, 500 https: //renderman. pixar. com/ Check links for cool demos. Succeeding with Technology

6. 3 Digital Photography and Video Key Terms • Photo-editing Software • Video-editing Software Succeeding with Technology I’m Stopping Here, But read carefully on your own. You’ll see at least four questions from the next two sections on your exam.

Digital Photography n Digital photos are created, or acquired, using a digital camera or scanner and are saved as bitmapped images. Succeeding with Technology

Photo Editing n 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. Succeeding with Technology

Today’s technology makes it easy to create realistic looking faked photos – thus photos are no longer trusted as evidence in court. http: //www. worth 1000. com Succeeding with Technology

Valuable Viewing, Sharing, and Printing Services n http: //photos. yahoo. com n http: //picasa. google. com n www. kodakgallery. com n http: //mobile. yahoo. com/photos n http: //target. photos. yahoo. com Succeeding with Technology

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

Video Editing n Video-editing software allows professional and amateur videographers to edit bad footage out and rearrange the good footage to produce a professional-style video production. Video editing storyline Succeeding with Technology

Portable Digital Video Hardware n Portable Media Player (PMP) Succeeding with Technology

6. 4 Interactive Media Key Terms • Interactive media • Video game consoles • Interactive TV Succeeding with Technology

Interactive Media n Interactive media refers to digital media presentations that involve user interaction for education, training, or entertainment. Example: Digital Media for Work and Leisure, Army’s Virtual World Succeeding with Technology

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

Interactive Media in E-commerce http: //www. toyota. com/prius Succeeding with Technology

Game Consoles n Video game consoles, such as the Nintendo Game. Cube, the Sony Playstation 2 (PS 2), and Microsoft’s Xbox, are high-powered multiprocessor computers designed to support 3 D interactive multimedia. Succeeding with Technology

Portable Gaming Hardware n Play. Station Portable n Nintendo DS Succeeding with Technology

Interactive TV n 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 Succeeding with Technology

The Media Center PC n 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 Succeeding with Technology

Chapter 6 Questions? Don’t forget to turn your phone on!! Succeeding with Technology