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Questions and Answers
What is the primary function of a Minidisc recorder?
What is the primary function of a Minidisc recorder?
Digital recording and playback of stereo audio
Which format allows streaming of audio with low bandwidths?
Which format allows streaming of audio with low bandwidths?
The AIFF format is supported by all web browsers.
The AIFF format is supported by all web browsers.
False
The __ format is developed by Apple.
The __ format is developed by Apple.
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What are the benefits of multimedia?
What are the benefits of multimedia?
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Text is a multimedia data element.
Text is a multimedia data element.
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What is the primary difference between raster/bitmap images and vector images?
What is the primary difference between raster/bitmap images and vector images?
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Hypertext includes links to other ____.
Hypertext includes links to other ____.
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Match the following multimedia formats with their primary usage:
Match the following multimedia formats with their primary usage:
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What is the main purpose of puppet animation?
What is the main purpose of puppet animation?
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Silhouette animation involves characters visible as colored figures.
Silhouette animation involves characters visible as colored figures.
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What are the two primary sound formats mentioned in the lectures?
What are the two primary sound formats mentioned in the lectures?
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Study Notes
Multimedia Characteristics
- Multimedia is the integration of multiple forms of media, such as text, images, audio, and video, to create interactive and engaging experiences.
- Four key characteristics of multimedia:
- Computer-controlled
- Integrated
- Presented digitally
- Interactive
Advantages of Multimedia
- Enhances text-only messages
- Improves traditional audio and video presentations
- Gains and holds attention
- Good for computer-phobics
- Entertaining as well as educational
Multimedia Data Elements
- Text: display of words
- Images: picture of an object
- Movies: outside the scope of traditional multimedia
- Animation: more accurate than movies
- Hyper text: link to other text
- Sounds: include speech, audio effects, ambient sound, and music
Images
- An artifact that reproduces the likeness of some subjects (object or person)
- Composed of pixels
- Two types of computer graphics:
- Raster/bitmap images: composed of pixels, used for photo-realistic images and complex drawings
- Vector images: composed of paths, used for lines and shapes
Graphic File Formats
- Graphic Interchange Format (GIF): supports transparency, limited to 256 colors, used for images with transparent areas, black and white images, and small-size images
- Joint Photographic Experts Group (JPEG): most common file format for images on the web, used for photographs, natural-looking images, and images with a great deal of detail
- Portable Network Graphics (PNG): can display millions of colors, used for images with transparent areas, and images with a great deal of detail
Video
- Capturing, recording, processing, storing, transmitting, and reconstructing a sequence of still images that represents scenes in motion
- Streaming media: media that is continuously received and displayed to the end user while it is being delivered by the provider
- File formats:
- Windows Media
- RealMedia
- QuickTime
- MPEG (MPEG-4)
Animation
- A rapid display of a sequence of images or 2D artwork or model positions to create an illusion of movement
- Techniques:
- 2D animation: figures are created and/or edited on the computer using 2D bitmap graphics or created and edited using 2D vector graphics
- 3D animation (cel-shading): creates computer graphics that appear to be hand-drawn
- Stop animation: general term for an animation technique that makes static objects appear to move
- Other techniques: puppet animation, computer animation, full animation, limited animation, rubber hose, drawn on film animation, paint-on-glass animation, clay animation (claymation), cutout animation, silhouette animation, model animation, and special effects and animation
Sounds
- A series of compression waves that moves through air or other materials
- Perception of sounds: perceived through the sense of hearing
- Creating and detecting sounds: creating and detecting sounds have similar effects, but opposite
- File formats:
- Wave format (.wav): supported by all computers running Windows and by all popular web browsers
- MP3 format (.mp3): one of the most popular sound formats for music recording
- MIDI format (.mid or .midi): Musical Instrument Digital Interface, sends music information between electronic music devices, developed in 1982
- Real-Audio format (.rm or .ram): allows streaming of audio with low bandwidths, developed by Real Media
- AU format (.au): supported by many different software systems over a large range of platforms, developed by Apple
- AIFF format (.aiff): not cross-platform and the format is not supported by all web browsers, developed by Apple
- SND format (.snd): not cross-platform and the format is not supported by all web browsers, developed by Apple
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Description
This quiz covers the basics of multimedia, including the different forms of data representation and the principles of effective visual design.
