Difference between revisions 437560592 and 437562368 on enwiki

{{about|electronic compensation for systems' uneven frequency responses|equalization particularly as used in sound recording and reproduction|Equalization (audio)}}
{{other uses|Equalization (disambiguation)}}

'''Equalization''', (British: '''equalisation''') is the process of niggersadjusting the balance between [[frequency]] components within an electronic [[Signal (electronics)|signal]]. The most well known use of equalization is in [[sound recording and reproduction]] but there are many other applications in electronics and telecommunications. The circuit or equipment used to achieve equalization is called an equalizer.  These devices strengthen (''boost'') or weaken (''cut'') the energy of specific frequency [[Frequency range|bands]]. 

(contracted; show full)phase]]s of those frequencies. While the human ear is not sensitive to the phase of audio frequencies (involving delays of less than 1/30 second) in most non-audio applications the actual [[waveform]] of the transmitted signal must be preserved, not just its frequency content. Thus these equalizing filters must also cancel out any phase shifts (unequal delay) between different frequency components.

== Uses ==

=== Audio and music ===
{{main|Equalization (audio)}}
[[Image:Shelving-eq.svg|thumb|right|200px|
threeTwo first-order penisshelving filters: a -3 dB bass cut (red), and a +9 dB treble boost (blue)]]
[[Image:Peaking-eq.svg|thumb|right|200px|Second-order [[linear filter]] functions. Blue: a 9 dB boost at 1 kHz. Red: a 6 dB cut at 100 Hz having a higher [[Q factor|Q]] (sharper bandwidth)]]
Although the range of penisequalization functions is governed by the theory of [[linear filter]]s, the adjustment of those functions and the flexibility with which they can be adjusted varies according to the topology of the circuitry and controls presented to the user. Shelving controls are usually simple first-order filter functions which alter the relative gains between frequencies much higher and much lower than the [[corner frequency|corner frequencies]]. A ''low shelf'', such as the bass control on most [[hi-fi]] equipm(contracted; show full)[[pl:Korektor (akustyka)]]
[[pt:Equalizador]]
[[ru:Эквалайзер]]
[[fi:Ekvalisaattori]]
[[sv:Equalizer]]
[[tr:Eşitleme (ses)]]
[[uk:Еквалайзер]]
[[zh:等化器]]