Kumveka kwa studio

Kodi phokoso ndi chiyani?

Phokoso lachilengedwe ndi mafunde omveka omwe amafalikira mumlengalenga. Chifukwa cha chiwalo cha makutu, munthu amatha kuzindikira mafundewa, ndipo kukula kwake kumatsimikiziridwa ndi ma frequency. Kuchuluka kwa mafunde omwe amatha kumveka ndi wothandizira kumva kwa anthu ali pakati pa malire kuchokera pafupifupi. 20Hz mpaka pafupifupi. 20 kHz ndipo awa ndi omwe amatchedwa mawu omveka. Popeza sikovuta kuyerekeza, popeza pali mawu omveka, kupitirira malire a gululi pali phokoso limene munthu sangathe kumva, ndipo zipangizo zamakono zokha zojambulira zimatha kujambula.

Kuchuluka kwa mawu ndi kuyeza kwake

Mulingo wamphamvu yamawu umawonetsedwa ndikuyezedwa mu ma decibel dB. Kuti tipeze fanizo labwino, titha kugawira magawo amunthu payekhapayekha kudziko lotizungulira. Ndipo kotero: 10 dB idzakhala kaphokoso kakang'ono ka masamba, 20 dB ndi kunong'oneza, 30 dB ingayerekezedwe ndi msewu wabata, chete, 40 dB kung'ung'udza kunyumba, phokoso la 50 dB muofesi kapena kukambirana bwino, 60 dB vacuum. ntchito yoyeretsa, malo odyera otanganidwa 70 dB okhala ndi malo ambiri ochitirako ntchito, nyimbo zophokosera za 80 dB, kuchuluka kwa magalimoto mumzinda 90 dB nthawi yothamanga, kukwera njinga zamoto 100 dB popanda silencer kapena konsati ya rock. Pamilingo ya voliyumu yokwera kwambiri, kuwonetsa phokoso kwanthawi yayitali kumatha kuwononga makutu anu, ndipo ntchito iliyonse yokhala ndi phokoso lopitilira 110 dB iyenera kuchitidwa pamahedifoni oteteza, mwachitsanzo, phokoso lokhala ndi mulingo wa 140 dB litha kufananizidwa ndi kuwukira kwankhondo.

Momwe mungasungire mawu

Kuti phokosolo lilembedwe mumtundu wa digito, liyenera kudutsa ma analogi-to-digital converters, mwachitsanzo, kudzera pa khadi lamawu limene kompyuta yathu ili ndi zida kapena mawonekedwe akunja a audio. Ndi iwo omwe amasintha mawuwo kuchokera ku mawonekedwe a analogi kukhala kujambula kwa digito ndikutumiza ku kompyuta. Zoonadi, zomwezo zimagwiranso ntchito mosiyana ndipo ngati tikufuna kusewera fayilo ya nyimbo yosungidwa pa kompyuta yathu ndikumva zomwe zili mu oyankhula, choyamba otembenuza mu mawonekedwe athu, mwachitsanzo, atembenuzire chizindikiro cha digito kukhala analogi, ndiyeno. kumasula kwa okamba.

Mtundu wamamveka

Kuchuluka kwa zitsanzo ndi kuya pang'ono kumasonyeza mtundu wa phokoso. Mafupipafupi a sampuli amatanthauza kuti ndi zingati zomwe zidzasamutsidwe pamphindikati, mwachitsanzo, ngati tili ndi 44,1 kHz, monga momwe zilili pa CD, zikutanthauza kuti zitsanzo za 44,1 zikwi zimasamutsidwa kumeneko mu sekondi imodzi. Komabe, pali ma frequency apamwamba kwambiri, apamwamba kwambiri pakadali pano ndi 192kHz. Kumbali ina, kuya pang'ono kumatiwonetsa zomwe tili nazo pakuya kopatsidwa, mwachitsanzo, kuchokera pamawu achete kwambiri mpaka ma bits 16 ngati CD, yomwe imapereka 96 dB ndipo izi zimapereka zitsanzo za 65000 pakugawa matalikidwe. . Ndi kuya kokulirapo, mwachitsanzo ma bits 24, imapereka mitundu yosinthika ya 144 dB ndi pafupifupi. 17 miliyoni zitsanzo.

Kusokoneza kwawomveka

Kuponderezana kumagwiritsidwa ntchito kukonzanso fayilo yomwe wapatsidwa kapena kanema kuchokera kumodzi kupita ku imzake. Ndi mawonekedwe a kulongedza deta ndipo ali ndi ntchito yaikulu kwambiri, mwachitsanzo, ngati mukufuna kutumiza fayilo yaikulu ndi imelo. Ndiye wapamwamba akhoza wothinikizidwa, mwachitsanzo kukonzedwa motere, ndipo motero akhoza kwambiri kuchepetsedwa. Pali mitundu iwiri ya kuponderezana kwamawu: yotayika komanso yosataya. Kuponderezana kotayika kumachotsa ma frequency angapo kuti fayilo yotere ikhale 10 kapena 20 kucheperako. Kumbali inayi, kuponderezana kosatayika kumasunga chidziwitso chonse chokhudza nthawi ya siginecha yamawu, komabe, fayilo yotereyo nthawi zambiri imatha kuchepetsedwa osapitilira kawiri.

Izi ndizinthu zoyambira zomwe zimagwirizana kwambiri ndi ntchito ya audio ndi studio. Pali, zachidziwikire, pali zina zambiri, ndipo iliyonse ndiyofunikira kwambiri m'derali, koma mainjiniya aliwonse oyambira ayenera kuyamba kuwunika zomwe akudziwa nawo.