Thekuchepetsa phokosocoefficient (yomwe nthawi zambiri imatchedwa NRC) ndi nambala imodzi yokha ya 0.0-1.0, yomwe imafotokoza kuchuluka kwa mayamwidwe azinthu.Thekuchepetsa phokosocoefficient ndi avareji ya Sabine sound mayamwidwe coefficient kuyezedwa 250, 500, 1000, ndi 2000 Hz.

Mtengo wa 0.0 umatanthawuza kuti chinthucho sichimatsitsa phokoso lapakati pafupipafupi, koma chimasonyeza mphamvu zomveka.Izi ndizowoneka bwino kuposa zomwe zingatheke mwakuthupi: ngakhale makoma okhuthala kwambiri a konkriti amatsitsa phokoso, komansokuchepetsa phokosocoefficient akhoza kukhala 0.05.

M'malo mwake, phokoso lochepetsera phokoso la 1.0 limatanthawuza kuti malo omvera (mu sabin monga gawo) operekedwa ndi zinthuzo ndi ofanana ndi malo ake ozungulira awiri.Gululi ndi zinthu zomwe zimagwiritsidwa ntchito pazida zokulirapo zoyamwitsa mawu (monga 2-inchi wokhuthala wokutidwa ndi fiberglass panel).Izi zitha kukwaniritsa mtengo wochepetsera phokoso wopitilira 1.00.Ichi ndi cholakwika pamayesero, ndipo ndikuchepetsa tanthauzo la acoustician la square unit m'malo motengera mawonekedwe ake.

Chinthu chochepetsera phokoso chimagwiritsidwa ntchito nthawi zambiri kuwunika momwe ma acoustic amagwirira ntchito padenga lamayimbidwe, magawo, zikwangwani, zowonera muofesi, ndi mapanelo apakhoma acoustic.Nthawi zina amagwiritsidwa ntchito kupenda kuphimba pansi.Komabe,kuchepetsa phokosondi chetekuchepetsa phokoso, zomwe zingachepetse kukhudzidwa kwa phokoso kwa anthu, koma sizingatsekeretu phokosolo.M'pofunikabe kupeza akatswiri zipangizo zoyamwa mawu.

Ndiye ndi zida zotani zoyamwa mawu za NRC?Mineral fiber ceiling board ndi fiberglass board ndi zida zabwinoko zamayamwidwe amawu komansokuchepetsa phokoso.Nrc ya mineral fiber board nthawi zambiri imakhala pafupifupi 0.5, ndipo nrc ya fiberglass board imatha kufika 0.9-1.0.Titha kuyika zida zoyenera zapadenga malinga ndi malo osiyanasiyana.