AEC C-39 Dynamic Purosesa

Zomwe zidachitika ku Dynamic Range ndi Momwe Mungabwezeretsere

Pamsonkhanowu, phokoso la fortissimos lanyimbo zanyimbo zanyimbo zanyimbo zanyimbo zanyimbo zaphokoso kwambiri zimatha kufika pamlingo wa 105 dB*, wokwera kwambiri kuposa pamenepo. Magulu amiyala pamasewera amoyo nthawi zambiri amapitilira 115 dB kuthamanga kwa mawu. Mosiyana ndi izi, zambiri zofunika kwambiri zanyimbo zimakhala ndi ma harmonics apamwamba omwe amamveka pamlingo wotsika kwambiri. Kusiyana pakati pa nyimbo zaphokoso kwambiri ndi zabata kwambiri zimatchedwa dynamic range (yofotokozedwa mu dB). Moyenera, kuti mujambule phokoso la nyimbo zaposachedwa popanda kuwonjezera phokoso kapena kusokoneza, chojambuliracho chiyenera kukhala ndi mphamvu zosachepera 100 dB pakati pa phokoso lakumbuyo la chipangizocho ndi mlingo wapamwamba kwambiri wa chizindikiro chomwe kusokoneza kumamveka. Tsoka ilo, ngakhale akatswiri ojambulira matepi apamwamba kwambiri amangokwanitsa 68 dB zokha. Kuti mupewe kupotoza komveka, chizindikiro chapamwamba kwambiri chojambulidwa pa tepi yapamwamba ya studio chiyenera kukhala ndi malire a chitetezo cha 58 mpaka khumi dB pansi pa mlingo wosokoneza womveka. Izi zimachepetsa ma dynamic range mpaka 100 dB. Chojambuliracho chimafunika kujambula pulogalamu yanyimbo yokhala ndi mitundu yosiyanasiyana ya dB pafupifupi kuwirikiza kawiri kuthekera kwake. Ngati nyimbo yokhala ndi 60 dB dynamic range ijambulidwa pa tepi chojambulira ndi 40 dB osiyanasiyana, mwina pamwamba 40 dB ya nyimboyo idzasokonekera moyipa, 40 dB yapansi ya nyimboyo idzakwiriridwa muphokoso la tepi ndikubisa, kapena padzakhala kuphatikiza ziwirizi. Njira yanthawi zonse yamakampani opanga zojambulira kuthana ndi vutoli ndikuchepetsa dala nyimbo zomwe zimamveka panthawi yojambulira. Izi zimaletsa kusinthasintha kwa nyimbo kuti zigwirizane ndi luso la chojambulira, kulola kuti mawu achete ajambulidwe pamwamba pa mlingo wa phokoso la tepi, pamene akujambula mokweza kwambiri pa tepi yomwe imakhala pang'ono (ngakhale momveka) kupotozedwa. Mtundu wosinthika wa pulogalamu ukhoza kuchepetsedwa mwadala m'njira zingapo zosiyanasiyana. Woyendetsa amatha kulangiza oimba kuti asamasewere mokweza kwambiri kapena mwakachetechete kwambiri ndipo motero amatulutsa mawonekedwe ochepa oti ma maikolofoni a studio atengedwe Pochita, izi zimachitika nthawi zonse mpaka pamlingo wina, koma kuchepetsa kofunikira kwa 50 mpaka XNUMX dB sikungathe. zitheke popanda kuletsa oimba mopambanitsa, zomwe zimabweretsa kusachita bwino mwaluso. Njira yodziwika bwino yochepetsera ma dynamic range ndi yoti mainjiniya ojambulira asinthe mawonekedwe osinthika pogwiritsa ntchito zowongolera pamanja ndi zodziwikiratu.

Njira yodziwika bwino yochepetsera ma dynamic range ndi yoti mainjiniya ojambulira asinthe mawonekedwe osinthika pogwiritsa ntchito zowongolera pamanja ndi zodziwikiratu. pophunzira nyimbo zoimba kuti ndime yachete ikubwera, amawonjezera pang'onopang'ono passan pamene phala liri lonse limawonjezera o kuteteza kuti lilembedwe pansi pa mlingo wa phokoso la tepi. Ngati adziŵa kuti ndime yaphokoso ikubwera, iye amachepetsa kupindulako pang’onopang’ono pamene ndimeyo ikuyandikira kuletsa kuchulukitsitsa kwake tepiyo ndi kupangitsa kupotoza kwakukulu. Mwa "kukwera kukwera" motere, mainjiniya amatha kusintha kwambiri ma dynamics popanda omvera wamba kuwazindikira. Pamene kuchuluka kwamphamvu kumachepetsedwa ndi njira iyi, komabe, kujambula sikudzakhala ndi chisangalalo cha machitidwe oyambirira amoyo. Omvera atcheru kaŵirikaŵiri amazindikira kupereŵera kumeneku, ngakhale kuti sangazindikire chimene chikusoweka. Zowongolera zodziwikiratu zimakhala ndi makina opangira ma siginecha apakompyuta otchedwa compressor ndi malire omwe amasintha kuchuluka kwa siginecha yojambulidwa pa tepi. Compressor imachepetsa kusinthasintha pang'onopang'ono pochepetsa pang'onopang'ono kuchuluka kwa ma siginecha amphamvu, ndi/kapena kukulitsa kuchuluka kwa ma siginecha opanda phokoso. Chotsitsa chimachita mwamphamvu kwambiri kuletsa ma siginecha aliwonse okweza kwambiri omwe amapitilira mulingo wokhazikitsidwa kale. Izi zimalepheretsa kusokonekera chifukwa chakuchulukira kwa tepi pamapulogalamu okweza kwambiri. Chiwongola dzanja china chosinthira ndi maginito tepi yokha. Pamene tepi imayendetsedwa kuti ikhale yodzaza ndi zizindikiro zapamwamba, imakonda kuzungulira nsonga za zizindikiro, ndipo imakhala ngati malire ake poletsa zizindikiro zapamwamba. Izi zimayambitsa kupotoza kwa chizindikiro, koma kukhazikika kwapang'onopang'ono kwa matepi kumabweretsa kupotoza komwe kumaloledwa m'khutu, kotero wojambulira amalola kuti kuchuluka kwake kuchitike kuti pulogalamu yonse ikhale pamwamba pamwamba. mulingo waphokoso la tepi momwe mungathere ndipo potero mupeze chojambulira chabata. Kuchuluka kwa tepi kumabweretsa kuwonongeka kwa mbali yakuthwa kwa zida zomenyera, kufewetsa kwamphamvu, kuluma kwa zida, komanso kutayika kwa matanthauzidwe m'ndime zaphokoso pamene zida zambiri zikuyimba limodzi. Zotsatira zamitundu yosiyanasiyanayi yochepetsera mayendedwe kudzera pa chizindikiro "tampering” ndikuti mawuwo amachotsedwa pa ubale wawo wakale. Kusiyanasiyana kwa ma Crescendos ndi phokoso lokhala ndi chidziwitso chofunikira cha nyimbo zachepetsedwa, kusokoneza kupezeka ndi chisangalalo cha machitidwe amoyo.

Kugwiritsa ntchito kwambiri kwa matepi 16 kapena kupitilira apo kumathandiziranso pamavuto osiyanasiyana. Matepi 16 akasakanizidwa, phokoso la tepi yowonjezera limawonjezeka ndi 12 dB, kuchepetsa mphamvu yogwiritsira ntchito chojambulira kuchoka pa 60 dB kufika 48 dB. Zotsatira zake, injiniya wojambulira amayesetsa kulemba nyimbo iliyonse pamlingo wapamwamba momwe angathere kuti achepetse zotsatira za phokoso lomanga.

Ngakhale tepi yomalizidwayo ingakhale yosinthasintha, nyimbo ziyenera kusamutsidwa kupita ku disc wamba yomwe ili ndi 65 dB dynamic range. Chifukwa chake, tidakali ndi vuto la kuchuluka kwanyimbo kokulirapo kwambiri kuti silingathe kudulidwa pa disc yovomerezeka pamalonda. Kuphatikizidwa ndi vutoli ndikulakalaka kwa makampani ojambulira ndi opanga ma rekodi kuti ma rekodi adulidwe mokulira momwe angathere, kuti zolemba zawo zikhale zomveka kuposa za omwe akupikisana nawo. Ngati zinthu zina zonse sizichitika nthawi zonse, mawu okweza kwambiri nthawi zambiri amamveka bwino (komanso "zabwino") ponseponse kuposa achete. Mawayilesi amafunanso kuti marekodi adulidwe kwambiri kuti phokoso la disc pamwamba, pops ndi kudina zisamveke bwino pamlengalenga.

Pulogalamu yojambulidwa imasamutsidwa kuchokera pa tepi ya master kupita ku master disc kudzera pa cholembera chodulira chomwe chimayenda uku ndi uku ndi kumtunda ndi pansi pomwe imalemba mipope ya master disc. Kukwera kwa chizindikiro, m'pamenenso cholembera chimayenda patali. Ngati maulendo a stylus ali ochuluka kwambiri, mizere yoyandikana nayo imatha kudumphadumpha ndikupangitsa kusokoneza, kumveka bwino, ndikudumpha kusewera. Kuti izi zitheke, ma groove ayenera kufalikira motalikirana pamene ma siginecha apamwamba adulidwa, ndipo izi zimapangitsa kuti pakhale nthawi yayifupi yosewera yodula kwambiri. Ngakhale ma groove sagwirana kwenikweni, ma siginecha apamwamba kwambiri amatha kusokoneza ndikudumphadumpha chifukwa chakulephera kwa cholembera kutsata maulendo akulu akulu kwambiri. Ngakhale zida ndi makatiriji apamwamba amatsata maulendo akuluakulu, "osewera ma rekodi" otsika mtengo sadzatero, ndipo record manufac*) dB kapena decibel ndi gawo loyezera kumveka kwa phokoso. Nthawi zambiri amafotokozedwa ngati kusintha kakang'ono kwambiri kamvekedwe ka mawu. Mphuno yakumva (kumveka kocheperako komwe mungamve) ndi pafupifupi 0 dB, ndipo poyambira kupweteka (pamene mumatseka makutu anu) ndi pafupifupi 130 dB mulingo wa kuthamanga kwa mawu.

Kukula. Chosowa, Kukwaniritsidwa

Kufunika kokulitsa makina omvera abwino kwadziwika kale.

M’zaka za m’ma 1930, pamene makina osindikizira anayamba kupezeka m’makampani ojambulira, kuvomereza kwawo kunali kosapeŵeka. Ma compressor adapereka yankho lokonzeka ku vuto lalikulu lojambulira - momwe angakwaniritsire ma diski, omwe amatha kuvomereza kuchuluka kwa 50 dB okha, zida zamapulogalamu pomwe mphamvu zidayambira pamlingo wofewa wa 40 dB mpaka pamlingo wokweza wa 120 dB. Pomwe maphokoso am'mbuyomu adapangitsa kusokoneza kwachulukidwe (ndipo zofewa zidatayika chifukwa chaphokoso lakumbuyo), kompresa tsopano idathandizira injiniya kupanga ndime zokweza kwambiri komanso zofewa. ndime mokweza basi. M'malo mwake, zenizeni zenizeni zidasinthidwa kuti zigwirizane ndi malire aukadaulo. Posakhalitsa zidadziwika kuti mawu omveka kuchokera ku zojambulidwa zochepa izi zimafuna kusinthidwa kwa njira yophatikizira - kukulitsa - kuti abwezeretse kulondola kwamphamvu. Mkhalidwewo sunasinthebe lerolino. Pazaka 40 zapitazi, zoyesayesa zambiri zapangidwa kuti apange zowonjezera zowonjezera. Zoyesayesa izi zakhala zopanda ungwiro, ngakhale zili choncho. Khutu lophunzitsidwa, zikuwoneka, limalekerera zolakwa zomwe zimachitika popanikizana; Zolakwika za kukula, komabe, zikuwoneka bwino. Zaphatikizapo kupopera, kusakhazikika kwa mlingo ndi kusokoneza - zonsezi ndizosavomerezeka kwambiri. Chifukwa chake kupanga chowonjezera chabwino chomwe chimachotsa zotsatira zoyipazi kwakhala cholinga chosatheka. Komabe, cholinga chimenecho chakwaniritsidwa tsopano. Chifukwa chomwe timavomereza kutayika kwa machitidwe a pulogalamu popanda kutsutsa ndi chifukwa chochititsa chidwi cha psychoacoustic. Ngakhale kuti maphokoso amphamvu ndi mamvekedwe ofewa atsindikitsidwa kumlingo wofanana, khutu limaganizabe kuti limatha kuzindikira kusiyana. Zimatero - koma, chochititsa chidwi, kusiyana sikuli chifukwa cha kusintha kwa mlingo koma kusintha kwa kamangidwe ka ma harmonic Kumveka kokweza sikuli kokha kumasulira kwamphamvu kwa mawu ofewa. Pamene voliyumu ikuchulukirachulukira, kuchuluka ndi mphamvu za ma overtones zimawonjezeka molingana. Muzochitika zomvetsera, khutu limatanthauzira kusiyana kumeneku monga kusintha kwa phokoso. Ndi njira iyi yomwe imapangitsa kukanikiza kukhala kovomerezeka. M'malo mwake timavomereza bwino kwambiri kuti, mutatha kudya kwanthawi yayitali, nyimbo zamoyo nthawi zina zimakhala zowopsa. The AEC Dynamic Processor ndi yapadera chifukwa, monga dongosolo lathu la makutu-ubongo, limaphatikiza zonse zomwe zili ndi ma harmonic ampkusintha kwa litude ngati njira yatsopano komanso yothandiza kwambiri pakuwongolera kukula. Zotsatira zake ndi mapangidwe omwe amagonjetsa zotsatira zokhumudwitsa zam'mbuyo kuti akwaniritse ntchito zomwe sizinachitikepo. AEC C-39 imatembenuza kukakamiza ndi kuchepetsa kuchuluka komwe kumakhalapo pafupifupi muzojambula zonse kuti zibwezeretse modabwitsa machitidwe a pulogalamu yoyambirira. Kuphatikiza apo, kusinthaku kumatsagana ndi kuchepetsedwa kwaphokoso - kutsika kodziwika bwino kwa mkokomo, kulira, kung'ung'udza ndi phokoso lonse lakumbuyo. Advantages ya AEC C-39 ikhoza kupanga kusiyana kwakukulu pakumvetsera. Kusiyanitsa kwamphamvu ndiko maziko a zambiri zomwe zimakhala zosangalatsa komanso zomveka mu nyimbo. Kuti muzindikire kukhudzika konse kwa ziwonetsero ndi zodutsa, kupeza zambiri zabwino zomwe simumadziwa kuti zidalipo m'makaseti anu ndikudzutsa chidwi chatsopano komanso kutulukira kwatsopano mwa zonsezi.

Mawonekedwe

• Kukula kosalekeza kumabwezeretsa mpaka 16 dB yamphamvu kugwero lililonse la pulogalamu; zolemba, tepi, kapena oroadcast.
• Kuchepetsa bwino phokoso lonse lapansipansi - mluzu, kung'ung'udza, ndi kung'ung'udza. Chizindikiro chonse chakusintha kwaphokoso mpaka 16 dB.
• Kupotoza kochepa kwambiri.
• Kuphatikizira kukulira mmwamba ndi kutsika ndi nsonga zopanda malire kuti mubwezeretse zotsalira ndi zomveka bwino komanso kusiyanitsa kowoneka bwino.
• Zosavuta kukhazikitsa ndikugwiritsa ntchito. Kuwongolera kukulitsa sikofunikira ndipo kuwongolera sikofunikira.
• Chiwonetsero cha LED choyankha mwachangu chimayang'anira bwino zomwe zikuchitika.
• Imawongolera chithunzi cha stereo komanso kuthekera kwa omvera kusiyanitsa chida chilichonse kapena mawu.
• Masinthidwe otsetsereka amitundu iwiri amawongolera kukula kuti agwirizane ndendende ndi zojambulira zapakati komanso zopanikizidwa kwambiri.
• Imakwaniritsa kubwezeretsanso kodabwitsa kwa zojambulidwa zakale.
• Amachepetsa kutopa kwa kumvetsera pamasewera apamwamba.

Zofotokozera

AEC C-39 Dynamic Purosesa / Mafotokozedwe

Zikomo chifukwa cha chidwi ndi AEC C-39 Dynamic Processor. Timanyadira mankhwala athu. Tikuganiza kuti mosakayikira ndiwowonjezera bwino kwambiri pamsika lero. Zaka zisanu za kafukufuku wozama zidayamba kupanga - kafukufuku yemwe sanangopanga ukadaulo watsopano pamapangidwe owonjezera koma adatulutsa ma patent awiri omwe adaperekedwa, pomwe wachitatu akudikirira. Tikukulimbikitsani kuti mufananize AEC C-39 ndi chowonjezera china chilichonse m'munda. Mudzapeza kuti ilibe mphamvu yopopera ndi kupotoza komwe mayunitsi ena amavutika. M'malo mwake mudzamva kubwezeretsedwa kwapadera komanso kolondola kwamphamvu zoyambira ndi tsatanetsatane wabwino zomwe kuponderezana kwachotsa. Tingakhale okondwa kumva momwe mumachitira ndi mankhwala athu ndipo, ngati muli ndi mafunso ena, tilembeni nthawi iliyonse.

Zolemba / Zothandizira

AEC C-39 Dynamic Purosesa [pdf] Buku la Malangizo C-39 Dynamic Purosesa, C-39, Dynamic Purosesa, Purosesa

Maumboni

• Buku Logwiritsa Ntchito