Zosefera zomvera zimatengera pafupipafupi amplifier Kuzungulira, kugwira ntchito pamawu pafupipafupi osiyanasiyana, 0 Hz mpaka 20 kHz.
Mitundu yambiri ya zosefera ilipo pazogwiritsa ntchito kuphatikiza zofananira, opanga, zomveka, osewera ma CD ndi machitidwe enieni enieni.
Pokhala amplifier yodalira pafupipafupi, mwanjira yake yoyambira, fyuluta yomvera idapangidwa kuti ikweze, kudutsa kapena kuchepetsa (kukweza koyipa) ma frequency ena.
Mitundu yodziwika bwino imaphatikizapo zosefera zotsika pang'ono, zomwe zimadutsa ma frequency pansi pa ma frequency awo, ndikuchepetsa pang'onopang'ono ma frequency pamwamba pa cutoff frequency.
Sefa yodutsa kwambiri imachita mosiyana, imadutsa ma frequency apamwamba kuposa ma frequency odulira, ndikuchepetsa pang'onopang'ono ma frequency ocheperako.
Sefa ya bandpass imadutsa ma frequency pakati pa ma frequency ake awiri oduka, kwinaku akuchepetsa omwe ali kunja kwa mulingo.
Sefa yokana band, imachepetsa ma frequency pakati pa ma frequency ake awiri oduka, ndikudutsa omwe ali kunja kwa gulu la 'kukana'.
Sefa yodutsa zonse, imadutsa ma frequency onse, koma imakhudza gawo la gawo lililonse la sinusoidal malinga ndi kuchuluka kwake.
M'mapulogalamu ena, monga pakupanga ma graphic equalizers kapena ma CD player, zosefera zimapangidwa molingana ndi milingo monga pass band, pass band attenuation, stop band, ndi stop band attenuation, pomwe ma pass band ndi ma frequency omwe ma audio amachepetsedwa pang'ono kuposa kuchuluka kwatchulidwe, ndipo mabandi oyimitsa ndi ma frequency omwe mawuwo ayenera kuchepetsedwa pang'onopang'ono.
Muzochitika zovuta kwambiri, zosefera zomvera zimatha kupereka malingaliro, omwe amayambitsa resonance (kulira) limodzi ndi kutsitsa.
Zosefera zomvera zitha kupangidwanso kuti zizipereka phindu (boost) komanso attenuation. Muzinthu zina, monga ma synthesizer kapena zomveka, kukongola kwa fyuluta kuyenera kuwunikiridwa mwachidwi.
Zosefera zomvera zitha kukhazikitsidwa mumayendedwe a analogi ngati zosefera za analogi kapena mu code ya DSP kapena mapulogalamu apakompyuta ngati zosefera za digito.
Nthawi zambiri, mawu oti 'audio fyuluta' atha kugwiritsidwa ntchito kutanthauza chilichonse chomwe chimasintha ma timbre, chizindikiro cha audio.
Ndine Joost Nusselder, woyambitsa Neaera komanso wotsatsa malonda, abambo, ndipo ndimakonda kuyesa zida zatsopano ndi gitala pamtima pa zomwe ndimakonda, ndipo pamodzi ndi gulu langa, ndakhala ndikupanga zolemba zakuya zamabulogu kuyambira 2020. kuthandiza owerenga okhulupirika ndi maupangiri ojambulira ndi gitala.
