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Multimedia Hardware. Display Devices, Scanners, Digital Cameras, Digital Camcorders, Web Cameras . Display Devices. Computer Monitor CRT Monitor LCD Monitor Touch Screen Plasma Projector Ceiling Mounted LCD Projector Presentation Cart Document Camera. Scanners.

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PowerPoint Slideshow about 'Multimedia Hardware' - Sharon_Dale


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Multimedia hardware l.jpg

Multimedia Hardware

Display Devices, Scanners, Digital Cameras, Digital Camcorders, Web Cameras


Display devices l.jpg
Display Devices

  • Computer Monitor

    • CRT Monitor

    • LCD Monitor

    • Touch Screen

    • Plasma

  • Projector

    • Ceiling Mounted LCD Projector

    • Presentation Cart

    • Document Camera


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Scanners

  • A scanner captures images from photographic prints, posters, magazine pages etc.

  • There are two types of scanner

Film Scanner

Flatbed Scanner


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Digital Camera

  • A digital camera records and stores photographic images in digital format

  • Once a picture is taken, it is stored in the digital camera’s buffer and is compressed into JPEG format

  • The compressed image is transferred to the memory card

  • The images can be fed to a computer for further processing


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DV Camcorders

  • A DV Camcorder, or called a digital video camera, captures full-motion images and sound into digital data

  • The CCD (Charged Coupling Device) in a DV camcorder is used to capture video

    • The quality of video a digital video camera (resolution) can produce depends on the amount of detail the CCD can detect

    • Measured in pixels (in terms of Mega pixels (e.g. 1488 times 1728)

  • The captured video is exported to the video editing software for further processing


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Hard Drive Camcorders

  • No tapes, no discs, it stores video and images (photos) on an internal hard disk drive

  • The video file can be transferred to a PC

  • 30GB can store up to 7 hours of DVD quality video


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Web Cameras

  • A Web camera is a device that allows you to send real time video over the Internet. You can also use a Web camera to record videos that you can save on your computer

  • The quality of the images produced by a Web camera is determined by its resolution and speed

    • Web cameras can commonly transfer video a speed of 15 frames per second and a resolution of 640 x 480 pixels or a speed of 30 frames per second at a resolution of 352 x 288 pixels

  • Web camera are often used for videoconferencing

    • Videoconferencing allows you to have face-to-face conversations with people on the Internet or other networks


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DVD Recorder

  • transfer video from TV or camcorder to DVD discs

  • DVD formats:

    • DVD+RW, DVD+R supported by PHILIPS & SONYDVD+R

    • DVD-RW,DVD-R supported by PIONEER

    • DVD RAM supported by PANASONIC


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MPEG4 Player (Pocket TV, PMA)

  • MPEG4 is a digital compressed format in coding audio-visual information


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Digital Audio Recorders

  • MD Recorder

    • Sound is recorded digitally on a small magneto optical disc contained in a protective shell (called a Mini-Disc)

    • Record sound in high quality (at audio CD quality)

    • The audio data can be loaded to a computer

  • MP3 Recorder

    • Suitable for low-quality voice-only materials

    • The audio data can be loaded to a computer very efficiently


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MP3 Player

  • recent evolution of music format

  • fit into a device about the size of a deck of cards

  • create personalized music lists and carry thousands of songs and recordings wherever we go.


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Capturing Multimedia Contents(Demonstration)

Capturing Audio (Audacity)

Editing Sound: http://www.fed.cuhk.edu.hk/etu/howto/sound/sound.htm

Capturing Video (Pinnacle Studio)

http://www.fed.cuhk.edu.hk/etu/howto/capture/capture_eng.htm

On-line help for MMPC:

http://www.fed.cuhk.edu.hk/~etu/mmpc.html


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