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Audiovisual vocabulary

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    Practice with common audiovisual vocabulary
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  • All light in a viewing room produced by sources other than the display is called _____.
    ambient light
  •  20
  • Sound that is extraneous to the intentional audio (background noise) is called _____.
    ambient noise
  •  20
  • An electronic device for increasing the strength of electrical signals is called _____.
    an amplifier
  •  15
  • A measure of information carrying capacity without distortion is called _____.
    bandwidth
  •  20
  • What is closed circuit television (CCTV)?
    It's a system of transmitting video signals from the point of origin to single or multiple points equipped to receive signals.
  •  20
  • What is depth-of-field?
    The area in front of a camera lens that is in focus from the closest item to the camera to the furthest away.
  •  20
  • What do you call unwanted noise caused by the loop of an audio system’s output back to its input?
    feedback
  •  20
  • Which technology uses glass or plastic threads or wires to transmit information?
    fiber optic
  •  15
  • What is focal length?
    It is the distance, in millimeters, between the center of a lens and the point where the image comes into focus.
  •  15
  • What does HDTV stand for?
    high-definition television
  •  5
  • What type of light do remote controls and other wireless devices use?
    infrared light (IR)
  •  15
  • What does LCD stand for?
    liquid crystal display
  •  15
  • What does LED stand for?
    light emitting diode
  •  15
  • What do you call a device for blending multiple audio sources?
    a mixer
  •  15
  • A _____ converts composite or S-Video signals, along with corresponding audio signals, into modulated signals on a carrier channel.
    modulator
  •  20
  • What does MPEG-2 refer to?
    a compression scheme that reduces the number of bits needed to code the video image
  •  20