multimedia 11

8/8/2019 Multimedia 11

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Multimedia is defined as a technique

that supports the physical and logicalcoexistence and interactive use of heterogenous media classes such as print,audio and video in specific applicationenvironments, together to influence the giveninformation.


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Multi =Plural, more

than 1, many Media = Medium

ofcommunication

The word multimedia is composed of twoparts : the prefix multi and media .


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Building Block s of Multimedia

TEXT

Graphics

AUDIO

Animation

Video


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Normal Text:Normal is the style onwhich almost all other styles are based. If youchange the font or

paragraph formattingof Normal styleHyper Text:An object in the text

that allows the user to jump from one

web page to another at a click of themouse button .

TEXT


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Graphic is a generic term used to describethe pictorial representation of data.Images are still pictures that are representedas a bit map (Grid of Pixels)

Integration of the graphics element intothe application makes it more elegant andunderstandable

GRAPHICS


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M odes of GraphicsB ackground

2-DimensionalGraphics

3-Dimensional

Graphics

Charts AndGraphs

Flow Charts


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AUDIOAudio means the sensation resulting fromstimulation of the auditory mechanism byairwaves or vibrations

Sound Editing Operations

TrimmingSplicing and Assembly

Volume AdjustmentFormat conversion

Equalization

Time stretchingReversing Sound


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VIDEO

The term video refers to the movingpicture, accompanied by sound suchas a picture in television.

Types of video files Quick Time

A VI

MP EG


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ANI M ATION A nimation is the process of sequencing still

images in rapid succession to give the effectof live motion.

A nimations can be done in two ways : 2-D

3-D


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F E ATUR ES O F MULT I MEDI A SYS TE M

H ighProcessing

Power

Storage andMemory

OperatingSystem

SoftwareTools

Sound andDisplay Cards

Efficient Inputor OutputDevices

NetworkSupport


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D ATA C O MPR ESSION

Compressing of a file refers to thecutting down the size of the file byusing special compression algorithms

Types of compression techniques

Lossy

Lossless


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MULTIMEDIA APPLICATIONS

Multimedia andEducation

Multimediaand

Entertainment

Multimediaand Training

Multimedia andB usiness

MultimediaInteractive

Kiosks


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VI RTUAL R E AL I TY

V irtual reality can be described as anartificial environment created from thecomputer hardware and software, presentedto the user in a such a manner that it appearsand feels like a real environment

To enter in a virtual world, a user wears

specialG

loves,E

arphones andG

oggles all ofwhich receive their input from the computersystem


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DEVI CES IN VI RTUAL R E AL I TY

HeadMounted

Display

DataGlovesSoftware


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