CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Multimedia System: Enabling Technology References: S. McGloughlin, “Multimedia: Concepts and Practice”, Prentice Hall, 2001 T. Vaughan, “Multimedia: Making It Work 5 th Edition”, McGraw-Hill, 2001 F. Fluckiger, “Understanding Networked Multimedia: Applications and Technology”, Prentice Hall, 1995

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Lecture outline Multimedia Hardware Multimedia Software Enabling Technology

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Multimedia Hardware Fast processor –e.g. Pentium Large RAM (Random Access memory) –Memory space that the computer uses when performing work. –More RAMs means computer works quicker and more efficient.

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Multimedia Hardware Storage –Large Hard Disk Capable of supporting fast data transfer rate. –Removable large-capacity storage devices E.g. rewritable CD-Rom, Zip drive A good CD-ROM burner & good CD-R software to complement it –Easy CD Creature Deluxe

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Multimedia Hardware High resolution and a large monitor –Minimum 17 inch monitor –A dot-pitch value of.28 or smaller –Dot-pitch: distance in millimetres between each of the red, green and blue dots etched into the phosphor of the inside of the screen. –The smaller the dot-pitch value, the finer the image. –Multisync monitor: allow the change in screen resolutions without having to reset the system.

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Multimedia Hardware Quality speaker & sound card. –Stereo 16-bit sound capabilites with amplified speakers. –Compatibility : Sound Blaster sound card from Creative Laboratories has set the standard in the PC world. A good quality computer compatible microphone

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Multimedia hardware Good video display card –preferable capable of displaying 24 bit colours Good video capture cards –Allow you to capture video from a tape or camcorder A good quality digital camera –At least support 640 x 480 pixels images –Has display panel –Use disk or card to store the images before being uploaded to the computer.

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Multimedia Hardware Input devices –Keyboard, mouse, track ball, touch screen, graphic tablet, data glove A good flatbed scanner –24 bit colour depth and 300-dpi resolution Colour Printer Colour projector

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Multimedia Software Graphic design photo editing application – Adobe Photoshop, Corel’s Photo-Paint 3D modeling and animation application – Maya, 3D StudioMax Digital sound editing application – Sonic Foundry’s Sound Forge Digital video editing application – Adobe’s Premiere Multimedia authoring application – Micromedia Director Web page authoring/design tool – Micromedia Dreamweaver, Microsoft’s FrontPage

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Enabling Technologies Computing power Data networking Compression technology

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Computing Power Increase in CPU processing power Increase in storage capacity –Large capacity disk –Increase in storage bandwidth e.g. disk array technology Personal computer and workstation revolution Progress in user interfaces and software concepts –GUI, object-oriented concept and client-server paradigm.

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Data Networking Better transmission media –Fiber optic as compared to copper wire Better transmission technique –Fast packet switching Better services offered –ATM, ISDN, B-ISDN, Internet

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Compression Technology Better compression techniques. –GIF (Graphical Interchange Format) Mostly used with the internet –JPEG (Joint Photographic Experts Group) Still image compression

CMPD273 Multimedia System Prepared by Nazrita Ibrahim © UNITEN2002 Compression Technology –MPEG (Motion Picture Expert Group) Full motion video compression MPEG-1 : for video & audio compression on digital storage media at 1.5Mbits/sec e.g. CD-ROM MPEG-2 : video & audio compression for high quality digital storage media (4 to 60Mbits/sec) and video service over communication network. MPEG-4 : complete audio-visual compression for a scene