ashtakam (electronics)

electronicslo, oka ashtakam (sanketamh aakt) anedi pounahpunyaala madhya nishpattulaku oka lagarithmic unit, oka ashtakam pounahpunyam rettimpu kaavadaaniki anugunamgaa untundi. udaaharanaku, 40 heartz kante ekkuva oka ashtakam pounahpunyam 80 heartz. eee padam paaschaatya sangeeta sthaayi nundi udbhavinchindi, ikkada oka ashtakam anedi rettimpu avutundi. anduvalla audeo electronicslo ashtapadaala paramgaa vivarana saadhaaranam. 
dasaabdamtoe paatu, idhi frequency byaandlu ledhaa frequency nishpattulanu vivarinchadaaniki upayoginche unit.
nishpattulu mariyu vaalulu.
ashtakaalamlo vyakteekarinchabadina pounahpunya nishpatti anedi nishpatti yokka bays-2 lagarithm (binary lagarithm):
oka amplifier ledhaa filter oka nirdishta frequency paridhiloo prati octave kii ± 6 db frequency pratispandananu kaligi untundani paerkonavacchu, idhi frequency 2 karakam dwara marinappudu power geyin ± 6 decibels (power loe 4 karakam) dwara maarutundani suuchistumdi. eee vaalu, ledhaa marinta khachitamgaa 10 logg 10 (4) ± 6 decibels prati octave, frequenseeki anulomaanupaatamlo amplitude geyinku anugunamgaa untundi, idhi dasaabdaaniki ± 20 db kii samanam (10 frequency maarpu karakam kosam 10 amplitude geyin maarpu karakam). idhi modati-arder filter avutundi.
udaaharana.
20 heartz mariyu 40 heartz pounahpunyaala madhya dhooram 1 ashtakam. 4 kz vadda 52 db yokka vyaapti −2 db/aakt vadda frequency perige koddi taggutundi. 13 kz vadda vaisaalyam entha?

