An integration of text, graphics, still and moving images, animation, sounds, or any others.
Characteristics
Section titled “Characteristics”- Digital – key concept
- Integration of multiple media types, usually including video or/and audio
- Can be interactive or non-interactive
- Text
- Graphics
- Image
- Video and animation
- Sound
Captured media
Section titled “Captured media”Information captured from the real world. Example: still image, video, audio.
Synthesized media
Section titled “Synthesized media”Information synthesized by the computer.
Discrete media
Section titled “Discrete media”Has no time component.
Continuous media
Section titled “Continuous media”Time-based.
Classification
Section titled “Classification”Can either be plain text or rich text.
Graphics
Section titled “Graphics”Revisable document that retains structural information. Consists of objects such as lines, curves, circles, etc. Usually generated by software.
2D matrix consisting of pixels. Have no structural information. Two categories: scanned vs. synthesized.
The smallest element of resolution of the image. Represented by a number of bits aka pixel depth.
Video and Animation
Section titled “Video and Animation”Moving images or graphics. Captured or synthesized.
Consists of a series of bitmap images. Each image is called a frame. Speed of video is frame rate and measured in frames per second.
Animation is moving graphics. Generated by computer program. Consists of a set of objects. Object may move and change over time.
1D time-based signal. Can be either speech or non-speech. Can be either captured or synthesized.
Multimedia Networking
Section titled “Multimedia Networking”Audio and video can be streamed live or from storage.
Stored streaming can support pause, rewind, fast forward.
Live streaming can support pause and rewind but not fast forward. Must have lower latency.