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Multimedia Systems

by Nitin YadavNitin Yadav
Type: PracticalOffline Downloads: 1Views: 69Uploaded: 11 months ago

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Nitin Yadav
Nitin Yadav
INDEX Sr No. Practical Name Page No. 1. To study Multimedia Hardware System 2-6 2. To study the Multimedia Basic Software Tools 7-9 3. Write a program to make Wave audio file 10-22 4. Write a program to make Bitmap Image File 23-37 Date 5. To study about the HTML (Hypertext Markup Language) 38-40 6. To create Links in HTML (Hypertext Markup Language) 41-44 7. Write a program to create a File Splitter ~1~ 45-47 Date Of Submission Teacher’s Sign/Remarks
Practical No – 1 Aim - To study MULTIMEDIA HARDWARE system: a) INPUT DEVICES b) OUTPUT DEVICES c) COMMUNICATION DEVICES REQUIREMENTS: - Floppy Disc, Hard Disc, DVD, CD Rom, Input devices like Track Ball, Touch Screen, Mice, Flat Bed, Digital Camera, Output devices like Amplifier speaker, monitor, projector, Printer. THEORY: INPUT DEVICES: A great variety or input devices -from the familiar keyboard and handy mouse to touch screen and voice recognition setups can be used for development and delivery or a multimedia project. 1) KEYBOARD: A keyboard is the most common method of interaction with a Computer. Keyboards provide various tactile responses and have variously layout depending upon your Computer system and keyboard -model. Keyboard is typically rated at least 50 million cycles. The most common keyboard for PCs is the 1011 style, although many styles are available with one or more special keys LED’s. 2) MICE: A mouse is the standard tool for interacting with a graphical user interface (QUI). All Macintosh computers require a mouse; on PCs, mouse: are not required but recommended. The buttons on the mouse provide additional user input, such as pointing and double clicking to open a document. 3) TRACK BALL: Track ball are similar to mice except that the cursor is moved by using one or more fingers to roll across the top of the ball. The track ball ~2~
does not need the flat space required by a mouse. Track ball have at least two buttons;one for the user to click, and the other to provide the press and hold condition necessary for selecting & dragging operation. 4) TOUCHSCREEN: Touch screens are monitors that usually have a textured coating across the glass face. This coating is sensitive to pressure and register the location of the user’s finger when it touches the screen. The touch mate system, which has no coating, actually measures the pitch roll, and yaw rotation of the monitor when pressed by finger, and determine how much force exerted and the location where the force was applied. 5) MAGNETIC CARD ENCODERS AND READERS: Magnetic card setups are useful when you need an interface for a data- base application or multimedia project that tracks users. You need both card encoder and a card reader for this type of interface. The encoder connects to the computer at the serial port and transfer information to magnetic strip of tape on the back of the card. 6) FLAT-BED SCANNERS: A scanner may be the most useful piece of equipment you will use in the course of producing a multimedia project. There are flat bed scanner and handheld scanners. Most commonly available are gray -scale and color flat- bed scanners that provide a resolution of 300 or 600 dots per inch. Professional graphics houses may use even higher resolution unit. 7) OPTICAL CHARACTER RECOGNITION (OCR) DEVICES: OCR sofware, such as omni page from cacre or perceive from ocron, to convert printed matter to ASCII text files in our computer. We can also convert paper document into a word processing document on our computer without retyping or rekeying. An OCR terminal can be of use to multimedia developer because it recognizes not only printed characters but also handwriting. 8) INFRARED REMOTES: An infrared remote unit Iets a user interact with our project while we are freely moving about. Remotes work like mice and trackballs, except they use infrared light to direct the cursor and require no cables to communicate. Remote mice work well for a Iecture or other presentation in an auditorium or similar environment, when the speaker needs to move around the room. ~3~
9) VOICE RECOGNITION SYSTEM: Voice recognition system facilitates hands free interaction with your project. These system usually provide a unidirectional cardiod, noise canceling microphone that automatically filters out background noise. Most voice recognition system currently available can trigger common events such as Save, Quit, Open, Print etc.The Macintosh A V and Power Macintosh computer include voice recognition capability and add on sound board such as the Sound blaster or Diamond Sonic Sound and other provide this features for PCs. 10) DIGITAL CAMERA: Digital Camera use the same technology i.e. CCD as video camera uses. They capture the still images of a given no. of pixels and the images are stored in camera's memory to be uploaded later to a computer. The higher the mega pixel rating, the higher the resolution of camera.Images are uploaded from the camera's memory using a serial, parallel cable. b) OUTPUT HARDWARE: Presentation or the audio and the visual components or our multimedia project requires hardware that may or may not be included with the computer itself- speakers, amplifiers, monitor, motion video devices and capable storage devices. There is no greater test of benefit of good output hardware than to feed the audio output of your computer into an external amplifier. 1) AUDIO DEVICES: All Machintosh are equipped with an internal speaker and a dedicated sound chip and they are capable of audio output without additional hardware and /or software.To take advantage of built in stereo sound, external speakers are required. Digitizing sound on your Machintosh requires an external microphone and sound editing/recording software such as Sound edit 16 from Macromedia, Sound Forge. 2) AMPLIFIERS ANS SPEAKERS: Often the speakers we use during a project development will not be adequate for development of multimedia project.Speakers with built in amplifier are important when our project will be presented to a large audience. ~4~

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