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Equalization
{{Merge from |Blind equalization |discuss=Talk:Equalization#Merge parametric and blind equalization into equalization article|date=September 2010}}

{{About|frequency-dependent processing of signals}}

(contracted; show full)n the voice frequency range as only the local line to the subscriber now remains in analog format, but [[Digital Subscriber Line|DSL]] circuits operating in the [[MegaHertz|MHz]] range on those same wires may suffer severe [[attenuation distortion]], which is dealt with by automatic equalization or by abandoning the worst frequencies.  [[Videophone|Picturephone]] circuits also had equalizers.

==See also==
*[[Blind equalization]]
*[[Electronic filter]]
*[[Adaptive equalizer]]
*[[Loudness compensation]]
*[[
Smiley face curve]]
*[[Weighting filter]]
*[[British EQWeighting filter]]

==References==
{{Reflist}}
<div class="references-small">
:*Glen Ballou, "Filters and equalizers", ''Handbook for Sound Engineers'', Fourth edition, Focal Press, 2008 ISBN    0240809696.
</div>

==External links==
{{Wiktionary|equalisation|equalization}}
*[http://www.audiocheck.net/engineertraining_bands_difficult.php Discriminating EQ frequencies by ear]
*[http://www.sengpielaudio.com/calculator-bandwidth.htm Calculator: bandwidth per octave ''<math>N</math>'' to quality factor ''<math>Q</math>'' and back]
*[http://www.idc.ul.ie/idcwiki/index.php/Equalisation EQ Condensed Overview]
*[http://www.wikirecording.org/EQ WikiRecording's Guide to Equalization]
*[http://www.musicdsp.org/files/Audio-EQ-Cookbook.txt Audio EQ Cookbook]

{{Music technology}}

[[Category:Audio effects]]
[[Category:Linear filters]]
[[Category:Tone, EQ and filter]]

[[bg:Еквалайзер]]
[[ca:Equalitzador]]
[[cs:Ekvalizér]]
[[da:Equalizer]]
[[de:Equalizer]]
[[es:Ecualizador]]
[[fr:Égaliseur]]
[[gl:Ecualizador]]
[[it:Equalizzazione]]
[[he:אקולייזר]]
[[kk:Эквалайзер]]
[[nl:Equalizer]]
[[ja:イコライザー (音響機器)]]
[[no:Equalizer]]
[[pl:Korektor (akustyka)]]
[[pt:Equalizador]]
[[ru:Эквалайзер]]
[[fi:Ekvalisaattori]]
[[sv:Equalizer]]
[[tr:Eşitleme (ses)]]
[[uk:Еквалайзер]]
[[zh:等化器]]