Kodi kulemera ndi chiyani?
Kodi kulemera ndi chiyani?
Anonim

A-kulemera ndi njira yokhotakhota pafupipafupi (kapena fyuluta) yomwe imagwiritsidwa ntchito poyezera mayendedwe a maikolofoni kuti atsanzire makutu a munthu. Chifukwa cha kukakamiza kwa mawu komweko, kujambula kwa maikolofoni kumatha kukhala kosiyana kwambiri ndi milingo yomwe khutu la munthu limazindikira (Chithunzi 1).

Kupatula apo, kulemera kwa A ndi C ndi chiyani?

The "A" kulemedwa mlingo wa phokoso umasankha mafupipafupi otsika, mofanana ndi kuyankha kwa khutu. The "C" kulemedwa Kuchuluka kwa mawu sikumasankha ma frequency otsika komanso kuyeza mofananira ma frequency a 30 mpaka 10,000 Hz.

Momwemonso, kulemera kumatanthauza chiyani? A kulemedwa ndi tanthauzo ndi mtundu wa pafupifupi. M'malo mwa mfundo iliyonse ya data yomwe ikuthandizira mofanana ndi yomaliza kutanthauza, mfundo zina zimathandizira kwambiri "kulemera” kuposa ena. Kulemera kumatanthauza ndizofala kwambiri pamawerengero, makamaka pophunzira kuchuluka kwa anthu.

Momwemonso, ma decibel olemera ndi chiyani?

A-zolemera decibels, chidule cha dBA, kapena dBa, kapena dB(a), ndi chisonyezero cha kufuula kofananako kwa mawu mumlengalenga monga momwe khutu la munthu limamvekera. Mu A-kulemedwa system, ndi decibel mamvekedwe a mawu otsika amachepetsedwa, poyerekeza ndi osalemera ma decibel, momwe palibe kuwongolera komwe kumapangidwira pafupipafupi.

Kodi mumawerengera bwanji kulemera kwake?

Njira yoyambira ya a kulemera kwapakati pamene zolemera zimawonjezera 1 ndi x1 (w1) + x2 (w2) + x3 (w3), ndi zina zotero, pamene x ndi nambala iliyonse mu seti yanu ndipo w ndi yofanana. kulemera chinthu. Kuti mupeze wanu kulemera kwapakati, ingochulukitsani nambala iliyonse potengera kulemera kwake ndiyeno onjezerani manambalawo mmwamba.

Yotchuka ndi mutu