graphic equalizer


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graphic equalizer

[¦graf·ik ′ē·kwə‚lī·zər]
(engineering acoustics)
A device that allows the response of audio equipment to be modified independently in several frequency bands through the use of a bank of slide controls whose positions form a graph of the frequency response.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

equalization

(1) In communications, techniques used to reduce distortion and compensate for signal loss (attenuation) over long distances.

(2) In audio, equalization raises and lowers frequencies to yield a desired sound. A graphics equalizer is equipment with a sliding lever for each of several frequency bands (the more bands, the finer the tuning). The user adjusts each frequency according to the music requirements (speakers, environment, etc.), as well as personal taste. When adjusting audio in the computer, software-based equalizers perform the same functions as stand-alone hardware.
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The 50-watt NSX-V150M an electronic graphic equalizer, digital tuner, dual auto reverse cassette decks and a pair of three-way speakers carry a suggested price of $900.
According to the company, the Nokia 5800 XpressMusic offers a graphic equalizer, 8GB memory for up to 6000 tracks, support for all main digital music formats, a 3.5mm jack, as well as built-in surround sound stereo speakers.