Introduction to Multimedia I Multimedia Multi many multiple

Introduction to Multimedia I

Multimedia Multi = many, multiple Media = An intervening substance through which something is transmitted or carried on 2

Multimedia Definition Multimedia refers to technologies and applications that integrate different types of media, such as text, sound, video, computer graphic, animation Benefits: It makes things interesting and entertaining to the users, i. e. Enclocypedia Britannica, Encarta, VR (Virtual Reality) 3

Multimedia Component Picture Sound Text Multimedia Video Interaction 4

Text Content descriptions Graphical Text Common file format: . pdf (portable document format) . doc (MS-Word document) . rtf (rich text format) . htm or. html (hypertext markup language or web files) 5

Pictures Still Images (Still Pictures) or Graphics including charts, photos, drawings, buttons, etc. Common file formats: . gif (graphics interchange format) . jpg (jpeg – joint photographic experts group) . bmp (bitmat picture) . tif (tagged image file) 6

Pictures Animations are made up of a series of independent pictures put together in sequence to look like moving pictures Common file formats: . gif for animated gifts . swf (shockwave flash) for Flash files 7

Sound Digital Audio such as songs, movie soundtracks and speeches Synthesizer Audio (MIDI) Common file formats: . wav (Windows wave audio format) . ra (Real. Audio file) . mp 3 (MPEG-1, Audio layer 3) . mid (MIDI – Musical Instrument Digital Interface) 8

Video refers to recording, editing and displaying moving images Common file formats: . avi (audio video interleave) . mov (Quick. Time movie) . wmv (Windows media video) . mpg (MPEG – moving picture experts group) MPEG-1 (VCD), MPEG-2 (DVD), MPEG-4 9

Interaction Interactive see, hear 10

Multimedia System Digital Devices Analog Devices Input Devices Output Devices 11

Multimedia Input Devices Digital Devices Keyboard Mouse Scanner CD/DVD Digital Camera Digital Video Camera (DV) MIDI (Musical Instrument Digital Interface) Magnetic Storage Devices (Hard. Disk, Floppy. Disk) Touch-Screen Monitor 12

Multimedia Input Devices Analog Devices Microphone Video Camera Cassette Tape Video Tape (VHS) 13

Multimedia Output Devices Digital Monitor (CRT, LCD, LED) Printer Magnetic Storage Devices (Hard. Disk, Floppy Disk) CD-R, CD-RW (DVD-R, DVD-RW) CD Audio VCD (Video Disc), DVD, Blu-ray MIDI (Musical Instrument Digital Interface( 14

Multimedia Output Devices Analog Devices Speaker Analog Monitor (TV) Video Recorder (PAL, NTSC, SECAM) 15

Multimedia Computer Microcomputer Monitor Video Board CD-ROM (DVD-ROM) Sound Board Microphone External Speaker Application Software Mouse , Keyboard 16