Therage surutucoefficient (wanda aka fi sani da NRC) kewayon lamba ɗaya ne na 0.0-1.0, wanda ke bayyana matsakaicin aikin ɗaukar sauti na kayan.Therage surutuMatsakaicin madaidaicin madaidaicin ƙarar sauti na Sabine wanda aka auna a 250, 500, 1000, da 2000 Hz.

Ƙimar 0.0 tana nufin cewa abu ba ya rage sautin tsaka-tsaki, amma yana nuna ƙarfin sauti.Wannan ya fi ra'ayi fiye da yadda ake iya cimmawa ta jiki: ko da ganuwar kankare mai kauri sosai zai rage sautin, kumarage surutucoefficient na iya zama 0.05.

Akasin haka, ƙimar rage yawan amo na 1.0 yana nufin cewa sararin saman murya (a cikin sabin a matsayin naúrar) da kayan ke bayarwa daidai yake da yanayin samansa na zahiri biyu.Wannan darajojin abu ne na gama gari don kayan shayar da sauti mai kauri (kamar ɓangarorin fiberglass mai kauri mai inci 2 na nannade).Wannan abu zai iya cimma ƙimar rage yawan amo fiye da 1.00.Wannan aibi ne a cikin tsarin gwajin, kuma iyakancewa ne na ma'anar ma'anar ma'anar murabba'i maimakon halayyar kayan kanta.

Mafi yawan abubuwan rage amo ana amfani da su don kimanta aikin sauti na gabaɗaya na rufin murya, ɓangarori, banners, allon ofis, da fatunan bangon murya.Wani lokaci ana amfani dashi don kimanta ɗaukar hoto na bene.Duk da haka,rage surutukawairage surutu, wanda zai iya rage tasirin hayaniya a kan mutane yadda ya kamata, amma ba zai iya kashe sauti gaba ɗaya ba.Har yanzu yana da mahimmanci don nemo ƙwararrun kayan ɗaukar sauti.

Don haka menene babban kayan ɗaukar sauti na NRC?Ma'adinai fiber silin jirgin da fiberglass jirgin ne mafi alhẽri kayan for sauti sha darage surutu.Nrc na katako na fiber ma'adinai gabaɗaya kusan 0.5 ne, kuma nrc na allon fiberglass na iya kaiwa 0.9-1.0.Za mu iya shigar da kayan rufin da suka dace daidai da yanayi daban-daban.