ACE Chapter 6 Quiz

True/False Indicate whether the sentence or statement is true or false.

____ 1. Digital phone networks digitize speech and send it as bits over cables or through the air. ____ 2. One way to quantify sound is by measuring the amount of air particle displacement and charting it over time to create a graph, called an analog sound wave. ____ 3. An analog sound wave can be transmitted electrically using varying voltages of electricity as is done over traditional telephone networks, or varying a radio signal as is done for AM/FM radio. ____ 4. Analog sound can be easily duplicated and transmitted without any degeneration. ____ 5. Digital phones and media recorders/players include analog-to-digital converters and digital-to-analog converters to translate sound and music back and forth between analog and digital representation. ____ 6. A sound production studio uses a wide variety of audio hardware and software to record and manipulate music and sound recordings. ____ 7. A small band can use sequencers and synthesizers to sound like an entire orchestra. ____ 8. Using podcasts a musician can connect and control many devices all from a single synthesizer keyboard or computer. ____ 9. Most personal computers come equipped with on-board synthesizers on the computer’s sound card that include all the standard synthesizer keyboard sounds. ____ 10. Sequencers can contain professional voice interviews with celebrities or experts, recordings made available by the producers of regular radio programs or talk shows, music demos, instructional training, self-guided walking tours, personal discussions and commentaries, and more. ____ 11. Podcasts are distributed using DSS technology. ____ 12. A 32-MB music file on a music CD can be compressed down to a 3-MB MP3 file. ____ 13. There are three primary forms of audio storage media: CDs, hard drives, and bits. ____ 14. Media player software has been designed for desktop and notebook PCs, and handheld PCs, but not cell phones. ____ 15. Sonos provides a handheld remote that is used to program music selections on your PC from any location on your wireless network. ____ 16. Streaming audio protects copyrights because users who listen to streaming audio do not actually possess the file they listen to and cannot copy it or burn it to CD. ____ 17. Representing an image using bytes is simply a matter of storing the color of each pixel used in the image. ____ 18. Vector graphics are more difficult to edit and manipulate than bit-mapped graphics and use far more bytes to store an image. ____ 19. The main disadvantage of the object-oriented approach of vector graphics is that objects in the picture can’t be manipulated independently. ____ 20. Samplers allow you to adjust the color of an object by altering the levels of brightness, contrast, hue, and saturation. ____ 21. The process of changing two-dimensional objects such as those created with vector graphics applications into 3D models involves adding shadows and light. ____ 22. Surface textures are an important element in the interaction between light and a model. ____ 23. Vector graphics experts study photos and videotaped evidence in an effort to solve crimes. ____ 24. Digital video can be transferred to a computer directly from a camcorder or read from a DVD or VCR tape. ____ 25. Although vector graphics are impractical for representing photo-quality images, they are preferred for creating and storing drawings.

Modified True/False Indicate whether the sentence or statement is true or false. If false, change the identified word or phrase to make the sentence or statement true.

____ 26. Forensic audio uses digital processing to denoise (remove nonessential sounds and audio interference), enhance, edit, and detect sounds to assist in criminal investigations. ______27. A(n) synthesizer provides a visual fingerprint for various sounds in a recording. ______28. Multitrack recording allows the instruments to be recorded either all at once or separately. ______29. Integrated digital studios package many digital recording devices in one unit for convenient home recording. ______30. A(n) sampler can be downloaded from a Web site as an MP3 file and listened to using a PC media player, or transferred to a portable MP3 player. ______31. Bit-mapped graphics are ideal for representing photo-realistic images as they are able to capture minute details in an image. ______32. Vector graphics software, sometimes called drawing software, provides tools to create, arrange, and layer graphical objects on the screen. ______33. Digital photos are created, or acquired, using a digital camera or scanner and are saved as bit-mapped images. ______34. Digital cameras are ranked by the amount of digital imaging they can capture. ______35. Video-editing software uses a(n) video log on which to build a video production. ______36. Virtual media refers to digital media presentations that involve user interaction for education, training, or entertainment. ______37. Virtual reality produces a simulated environment in which the human participant can move and manipulate objects. ______38. Interactive TV is a digital television service that includes one or more of the following: video on demand, personal video recorder, local information on TV, purchase over TV, Internet access over TV, and video games over TV. ______39. Video on demand allows digital cable customers to select from hundreds of movies and programs to watch anytime they choose. ______40. 3D modeling software, such as Tivo and Replay TV, provide large hard drive storage to record dozens of movies and programs to be watched at your leisure. ______

Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.

____ 41. ____ encompass digital technologies of all kinds that serve and support digital music, video, and graphics. a. MP3 c. Interactive TV b. Digital media d. Podcast ____ 42. ____ refers to the ability to view or listen to programming or music at any time rather than at a time dictated by television and radio schedules. a. Interactive media c. On-demand media b. Rich media d. Multimedia ____ 43. ____ is any type of sound, including voice, music, and sound effects, recorded and stored digitally as a series of 1s and 0s. a. Podcast c. Digital audio b. Bluetooth d. Vector graphics ____ 44. ____ is a subcategory of digital audio that involves recording and storing music. a. Podcast c. Scientific visualization b. Digital music d. Bluetooth ____ 45. One way of quantifying sound is to represent sound waves with numbers, digitally, through a process called ____. a. digital to analog conversion c. MIDI b. sampling d. analog to digital conversion ____ 46. ADC uses a technology called ____ to encode a sound wave as binary numbers. a. digital to analog conversion c. MIDI b. sampling d. scientific visualization ____ 47. Digitized sound is transformed back into its analog form in a process called ____. a. digital to analog conversion c. MIDI b. sampling d. scientific visualization ____ 48. ____ devices treat each instrument or microphone as a separate input, or track. a. Media c. Multitrack recording b. MIDI d. Graphic ____ 49. A(n) ____ 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. podcast c. encoder b. synthesizer d. podcast ____ 50. A ____ digitally records real musical instrument sounds and allows them to be played back at various pitches using an electronic keyboard. a. mixing board c. sequencer b. synthesizer d. sampler ____ 51. A(n) ____ allows musicians to create multitrack recordings with a minimal investment in equipment. a. avar c. sequencer b. Windows bitmap d. CAD ____ 52. The ____ protocol was implemented in 1983 to provide a standard language for digital music devices to use in communicating with each other. a. MIDI c. CAD b. LAN d. analog signal ____ 53. ____ allow computers to be connected to digital music devices and are available for Windows PCs; they are included as standard equipment in most Apple computers. a. Bluetooth c. Vector graphics b. Broadband d. MIDI cards ____ 54. A ____ is an MP3 audio file that contains a recorded broadcast distributed over the Internet. a. podcast c. RFID b. synthesizer d. MIDI ____ 55. ____ removes those frequencies that are beyond the range of human hearing and in so doing reduce the size of the digital music file. a. Broadband c. Sound compression b. Editing software d. Satellite compression ____ 56. The ____ file format compresses CDA music files to less than 10 percent of their original size. a. vector graphics c. CAD b. podcast d. MP3 ____ 57. ____ software allows computer users to categorize and organize their digital music files for easy access. a. Analog c. Ripper b. Jukebox d. Encoder ____ 58. ____ software can be used to translate your favorite music CDs to MP3 files on your hard drive. a. Analog c. Ripper b. Jukebox d. Encoder ____ 59. Digital music files can be transferred from one format to another using ____ software. a. analog c. ripper b. jukebox d. encoder ____ 60. The technology invented to protect intellectual property in digital files is called ____. a. satellite radio c. digital rights management b. streaming audio d. MIDI ____ 61. ____ is a form of digital radio that receives broadcast signals via a communications satellite. a. A podcast c. Interactive radio b. Scientific visualization d. Satellite radio ____ 62. ____ refers to computer-based media applications that support creating, editing, and viewing 2D and 3D images and animation. a. Digital graphics c. Digital media b. Satellite radio d. MIDI ____ 63. Bitmapped graphics are also referred to as ____. a. vector graphics c. podcasts b. pixels d. raster graphics ____ 64. ____ or fuzziness, occurs when bit-mapped images are made larger than the size at which they are captured. a. Raster graphics c. Digital media b. Pixilation d. MIDI ____ 65. ____ use(s) bytes to store geometric descriptions that define all the shapes in the image. a. Raster graphics c. Vector graphics b. Pixilation d. MIDI ____ 66. ____ format is used by the Windows operating system and recognized by most graphics software. a. Graphics Interchange Format c. Portable Network Graphics b. Windows bitmap d. Tagged Image File Format ____ 67. Which of the following file formats is the standard for the Web? a. Graphics Interchange Format c. Portable Network Graphics b. Windows bitmap d. Tagged Image File Format ____ 68. Which of the following file formats is an industrial-strength format used by many professional photographers and graphic artists? a. Graphics Interchange Format c. Portable Network Graphics b. Windows bitmap d. Tagged Image File Format ____ 69. Three-dimensional modeling is often referred to as ____ because the software must trace beams of light as they would interact with the models in the real world. a. ray tracing c. synthesizing b. interactive media d. sequencing ____ 70. ____ is the process of calculating the light interaction with the virtual 3D models in the scene and presenting the final drawing in two dimensions to be viewed on the screen or printed. a. Photo-editing c. Rendering b. 3D modeling d. Scientific visualization ____ 71. ____ are points on the object that are designed to bend or pivot at specific angles. a. Avars c. Podcasts b. Pixels d. 3D animation ____ 72. ____ is used to create animations and exhibits to use in courts of law to explain theories and present evidence. a. MP3 c. Vector graphics b. Interactive TV d. Forensic graphics ____ 73. ____ is the video version of a blog. a. A podcast c. Digital audio b. A sampler d. Vlog ____ 74. When interactive media incorporates 3D graphic animation, the result is ____. a. virtual reality c. photo-editing b. MIDI d. 3D modeling ____ 75. ____ such as 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. a. Podcasts c. Video game consoles b. Samplers d. Synthesizers

Completion Complete each sentence or statement.

76. The term ______refers to signals that vary continuously. 77. Studios that specialize in recording music are known simply as ______. 78. Sound studios that work with motion pictures are typically referred to as ______. 79. ______technologies are applied to audio files to greatly reduce their size with little or no loss to sound quality. 80. The most recognized compressed digital audio file format is ______. 81. ______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. 82. The process of transferring music from CD to MP3 or other digital audio format is called ______a CD. 83. ______is an Internet technology that plays audio files as they are in the process of being delivered. 84. Digital images are made up of a grid of small points called ______. 85. Animation and video (moving pictures) are stored in the computer as a series of images called ______. 86. ______compression allows the original data to be reconstructed without loss. 87. ______compression accepts some loss of data to achieve higher rates of compression. 88. ______is a relatively new form of art that uses computer software as the brush and the computer display as the canvas. 89. ______uses computer graphics to provide visual representations that improve our understanding of some phenomenon. 90. ______assists designers, engineers, and architects in designing three dimensional objects, from the gear mechanism in a watch to suspension bridges. 91. ______involves displaying digital images in rapid succession to provide the illusion of motion. 92. ______animation includes all of the complexity of 3D graphic rendering, multiplied by the necessity to render 24 3D images per second to create the illusion of movement. 93. ______software includes special tools and effects that you can use to improve or manipulate bitmapped photograph images. 94. ______software allows professional and amateur videographers to edit. 95. A(n) ______allows the videographer to arrange video scenes sequentially and specify the transition effects between each scene.

Essay

96. Discuss the advantages of photo-editing software. 97. What is the difference between a synthesizer and a sampler? 98. Briefly describe the following file formats: Windows bitmap, Graphics Interchange Format, and Portable Network Graphics. 99. How is interactive media being used in education environments? 100. What is the difference between lossy compression and lossless compression?