Chapter 7 : Multimedia system Flashcards
What are the types of media used within a multimedia product?
- Text - Number
- Hypertext - Audio
- Image - Animation
- Videos
What are 2 display mode in multimedia?
- Screen and speaker
How to calculate image storage?
File size = ( Horizontal ×Vertical × Bit depth ) / (8 × 1024 bits )(= 1 Kb)
What is bit depth and relationship between bit depth and number of colour/ tone ?
- Bit depth is number of bits in a pixel
- 1 bit depth have 2 colours (2^1)
What is sample rate ?
- Sampling rate is the number of times a sample is taken from the sound wave. (kHz)
- More rate better audio
What is sample size?
- Sample size (or bit resolution) is the number of bits per sample
How to calculate audio file size?
(Sample rate × Sample size × time in second) × 2
How is speed of image shown in video determined by?
- By frame per second (fps)
- Higher fps, smoother video
How to calculate number of frames?
= (Frame rate x time in seconds)
How to calculate file size for each frame ?
= ( Horizontal ×Vertical × Bit depth) / ( 8 × 1024)
How to calculate a total video size ?
= Number of frames x File size for each frames
What are some techniques to create animation?
By using cell - based animation or path - based animation
- (Morphing and Warping can be include)
What are some people involve in multimedia system?
- Content providers
- System designer
- Technical staff
What are some major areas of multimedia use in and given example for each?
- Education and training ( Eg: Computer - based training)
- Leisure and entertainment( Eg : game)
- Information ( Eg: Information kiosks, Wikipedia)
- Virtual reality and simulation ( Eg:VR, flight simulators)
What advance in technology has helped multimedia?
- World Wide Web (www)
- CD - ROM speed
- DVD
