VU meter

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English

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English Wikipedia has an article on:
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Etymology

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Abbreviation of volume unit + meter.

Noun

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VU meter (plural VU meters)

  1. A display in audio equipment that represents the loudness of the signal.
    • 1978, Craig Anderton, Home recording for musicians:
      VU (volume unit) meters are wonderful to look at as their pointers swing merrily back and forth across their brightly-lit faces.
    • 2006, David E Reese, Lynne S Gross, Brian Gross, Radio production worktext: studio and equipment:
      The accuracy of VU meters is sometimes questioned in two areas.
  2. (computing, chiefly demoscene) Any animated graphical representation of the volume of sound or music (often subdivided across channels).
    • 1991, Kenrick J. Mock, “demos on tybalt?”, in comp.sys.apple2 (Usenet):
      The ECC Syncro Demo is a demonstration of text scrolling in the GS border area, as well as having VU meters in the border area. Similar to FTA's X-mas demo.
    • 1991, Cybernetworx, “VU meters”, in comp.sys.amiga.programmer (Usenet):
      Hi, I was wondering if anyone had any source code that showed how to read the values to construct a VU meter from a tracker replay routine.