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Multimedia Hardware

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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Multimedia Hardware

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  1. Multimedia Hardware Display Devices, Scanners, Digital Cameras, Digital Camcorders, Web Cameras

  2. Display Devices • Computer Monitor • CRT Monitor • LCD Monitor • Touch Screen • Plasma • Projector • Ceiling Mounted LCD Projector • Presentation Cart • Document Camera

  3. Scanners • A scanner captures images from photographic prints, posters, magazine pages etc. • There are two types of scanner Film Scanner Flatbed Scanner

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. MPEG4 Player (Pocket TV, PMA) • MPEG4 is a digital compressed format in coding audio-visual information

  10. 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

  11. 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.

  12. 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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