Term
| What is multimedia? Interactive multimedia? Hypermedia? Hypertext? |
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Definition
Multimedia: A woven combination of digitally manipulated text, photographs, graphic art, sound, animation, and video.
- Interactive multimedia - When the viewer/user can control what & when the elements are delivered
- Hypermedia - When you provide a structure of linked elements through which the user can navigate
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Term
Know the various delivery systems for multimedia.
Be able to compare them.
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Definition
The primary delivery methods:
- internet
wireless
-cdrom/dvd
With fiber optic cables and internet, multimedia such as books, movies, maps, etc is available just about anywhere.
CD Roms and DVDs being replaced with flash drives.
They all hold large amounts of digital memory. |
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Term
| Know how to create readable text. |
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Definition
- Present the user with only a few paragraphs of text per page.
- Use a font that is easy to read; sans serif instead of decorative ones.
- In a web browser, put a large amount of text into a scrolling field.
- Contrast is important.
- Line spacing & height.
- Emphasize headers and important text with bold and italics
- Have plenty white space.
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Term
| Be able to discuss the problems using text across different platforms/different languages. |
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Definition
Trying to play a multimedia project made on Windows on a Mac platform will have some issues.
Specifically with fonts.
Font and character mapping is used to substitute certain fonts and characters that may not work on both platforms.
Translating multimedia into a language other than the one it was written in is called localization. |
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Term
Explain how virtual reality works.
Give an example of when you would use it. |
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Definition
Interactive multimedia at the fullest.
With VR, goggles, helmets, special gloves, and realistic interfaces attempt to place you inside a lifelike experience.
In a VR screen everything is 3D from the space to the objects and as you explore, the computer has to recalculate the position, angle, size, and shape of all the objects in your view.
Examples: Flight simulator, video game |
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Term
Name the 3 types of graphics as discussed in your book.
Know the advantages and disadvantages of each. |
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Definition
Bitmap
Vector
3D
Bitmap is for finely detailed photos and images. However the file sizes are very large and the quality is diminished when scaling the image bigger.
Vector images are simple shapes, lines, boxes, etc.
It can be customized and selected as a single object.
Small file size.
3d images have shape, color, texture, shading, and perspective.
Takes longer to create. |
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Term
How do computers generate color?
How can you get more possible choices? |
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Definition
Additive color: combining colored light sources in the colors RGB.
Used in LCD & Plasma screens
Subtractive color: combining colored media ie. paints/inks that absorb some of the color spectrum of light and reflect the rest back.
Used in printing. CMYK
Palettes range from 1 bit to 24 bit in computer monitors. |
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Term
Compare and contrast the use of
digital audio vs. MIDI in a multimedia project. |
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Definition
Digital audio: Actual representation of a sounds from any source, spoken dialog, device independent.
MIDI: NOT digitized sound; shorthand music stored in numeric form, significantly smaller, embed/play in webpages easier. Needs familiarity with composing music, device dependent. |
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Term
1 What must you consider when recording and editing digital audio? |
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Definition
- CD's record at a sampling rate of 44.1 kHz
- The file size is: sampling rate * duration of recording in seconds * bit resolution / 8 * number of tracks(1 for mono 2 for stereo.)
- Remove blank space from start and finish.
- Windows: WAV file
- Mac: SND and AIF files
- Familiarize yourself with editing tools such as fade-ins/fade-outs, re-sampling, equalization, reversing sounds.
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Term
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Definition
| Animation is a visual change of an object over time due to persistance of vision. Many frames are put together to make one solid animation. More frames=more realistic looking animation/movement. |
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Term
| What is Flash? How does it create movement? |
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Definition
Flash is a program by Adobe used to create animations.
Creates movement through images on keyframes. |
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Term
What factors should you consider for shooting and editing video? |
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Definition
Have a good camcorder and enough space on your computer for the video file.
Have a steady shooting platform (tripod).
Storyboarding to get scenes organized.
Lighting.
Titles & Text |
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Term
How does the computer monitor image differ from a television image. |
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Definition
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Term
| Define codec. What does it do? |
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Definition
A codec is the algorithm used to compress a video for delivery and then decode it in real time for fast playback.
Different codecs for hard drives, dvd, web.
Some store the image data that changes from frame to frame and others predict what will change.
Ex. mpeg-4 |
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Term
| Six Thinking Hats of Creativity |
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Definition
vWhite - facts, figures and info
vRed - intuition & feelings
vBlack - judgment & caution
vYellow - positive elements
vGreen - creative possibilities
Blue - overview & processing |
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