Difference between revisions 451152766 and 451158783 on enwiki

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

(contracted; show full)modifies a signal only by eliminating lower frequencies. Thus a low-cut or [[Rumble (noise)#Rumble filters|rumble filter]] is used to remove [[infrasonic]] energy from a program which may consume undue amplifier power and cause excessive excursions in (or even damage to) speakers. A [[low-pass filter]] only modifies the audio signal by removing high frequencies. Thus a high-cut or [[Tape hiss|hiss filter]] may be used to remove annoying white noise at the expense of the crispness of the program material.


 dhaval :_A first-order low or high pass filter has a standard response curve which reduces the unwanted frequencies well above or below the corner frequency with a slope of 6&nbsp;dB per octave. A fancier second-order filter will reduce those frequencies with a slope of 12&nbsp;dB per octave and moreover may be designed with a higher Q or finite [[Pole–zero plot|zeros]] in order to effect an even steeper response around the [[cutoff frequency]]. For instance, a second-order ''low-pass notch'&#(contracted; show full)[[pl:Korektor (akustyka)]]
[[pt:Equalizador]]
[[ru:Эквалайзер]]
[[fi:Ekvalisaattori]]
[[sv:Equalizer]]
[[tr:Eşitleme (ses)]]
[[uk:Еквалайзер]]
[[zh:等化器]]