AEC C-39 Dynamic Processor Umarnin Jagora

AEC C-39 Dynamic Processor

Me ya faru da Range Range da Yadda ake Mai da shi

A cikin kide-kide, matakin sautin babbar mawakan kade-kade na fortissimos na iya kai matakin matsa lamba 105 dB*, tare da kololuwa ko da sama da haka. Ƙungiyoyin dutse a cikin wasan kwaikwayon rayuwa sukan wuce 115 dB matakin matsa lamba. Sabanin haka, mahimman bayanai na kiɗa sun ƙunshi mafi girman jituwa da aka ji a ƙananan matakai. Bambanci tsakanin mafi ƙaranci da mafi natsuwa sassan kiɗan ana kiransa kewayo mai ƙarfi (an bayyana a dB). Da kyau, don yin rikodin sautin kiɗan raye-raye ba tare da ƙara hayaniya ko murdiya ba, matsakaicin rikodi ya kamata ya ɗauki matsakaicin kewayon aƙalla 100 dB tsakanin ainihin yanayin amo na kayan aiki da matakin siginar kololuwa wanda hargitsi zai zama abin ji. Abin takaici, hatta ƙwararrun masu rikodin kaset ɗin ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun 68 dB ce kawai. Don hana murdiya a ji, mafi girman matakin sigina da aka rubuta akan tef ɗin babban ɗakin studio ya kamata ya sami tazarar aminci na dB biyar zuwa goma ƙasa da matakin murdiya mai ji. Wannan yana rage kewayon ƙarfi mai amfani zuwa wasu 58 dB. Don haka ana buƙatar mai rikodin kaset don yin rikodin shirin kiɗa tare da kewayo mai ƙarfi a cikin dB kusan sau biyu ikonsa. Idan aka yi rikodin kiɗan da ke da kewayon 100 dB a kan na'urar na'urar rikodi mai kewayon dB 60, ko dai saman 40 dB na kiɗan zai kasance da muguwar ɓarna, za a binne ƙasan 40 dB na kiɗan a cikin karar tef ɗin kuma ta haka an rufe shi, ko kuma za a sami haɗin biyun. Maganin gargajiya na masana'antar rikodi don magance wannan matsala shine don rage abubuwan da ke cikin waƙar da gangan yayin yin rikodi. Wannan yana taƙaita kewayon kiɗan don faɗuwa cikin iyawar mai rikodin kaset, yana ba da izinin yin rikodin mafi yawan sautin sauti sama da matakin ƙarar tef, yayin da ake yin rikodin sauti mai ƙarfi a matakan kan tef ɗin waɗanda kaɗan ne kawai (ko da yake a ji) gurɓatacce. Za'a iya rage girman kewayon shirin da gangan ta hanyoyi daban-daban. Mai gudanarwa na iya umurtar ƙungiyar makaɗa da kada su yi wasa da ƙarfi ko kuma cikin nutsuwa kuma ta haka ne ke samar da iyakataccen iyaka mai ƙarfi don microphones na studio don ɗauka A aikace, kusan koyaushe ana yin hakan zuwa wani mataki, amma raguwar da ake buƙata na 40 zuwa 50 dB ba za a iya samu ba tare da iyakancewa mawaƙa ba, wanda hakan ya haifar da ƙarancin wasan kwaikwayo. Wata hanyar da ta fi dacewa don rage kewayo mai ƙarfi ita ce injiniyan rikodi don gyaggyara kewayo mai ƙarfi ta hanyar amfani da jagora da sarrafa riba ta atomatik.

A more common method of reducing the dynamic range is for the recording engineer to modify the dynamic range through the use of manual and automatic gain controls. studying the musical score that a quiet passage is coming, he slowly increases passan as the paste any increases an o prevent its being recorded below the level of the tape noise. If he knows that a loud passage is coming, he slowly reduces the gain as the passage approaches to prevent its overloading the tape and causing severe distortion. By “gain riding” in this manner, the engineer can make substantial changes in dynamics without the average listener perceiving them as such. As the dynamic range is reduced by this technique, how- ever, the recording will not have the excitement of the original live performance. Sensitive listeners can usually sense this deficiency, even though they may not be consciously aware of what is missing. The automatic gain controls consist of electronic signal processing systems called compressors and limiters that modify the signal level recorded on tape. A compressor reduces the dynamic range in a gradual manner by gently reducing the level of loud signals, and/or increasing the level of quieter signals. A limiter acts more drastic- ally to restrict any loud signal that exceeds some preset level. This prevents distortion due to the overloading of the tape on loud program peaks. Another dynamic range modifier is the magnetic tape itself. When tape is driven into saturation by high level signals, it tends to round off the peaks of the signals, and acts as its own limiter by restricting high level signals. This causes some distortion of the signal, but the gradual nature of tape saturation results in a type of distortion which is tolerable to the ear, so the record- ing engineer permits a certain amount of it to occur to keep the entire program as high above the tape noise level as possible and thus obtain a quieter recording. Tape satu- ration results in the loss of the sharp edge of percussive attacks, softening of the strong, biting overtones on instruments, and a loss of definition in loud passages when many instruments are playing together. The result of these various forms of dynamic range reduction through signal “tampering” shine cewa an raba sautunan daga dangantakarsu ta asali. Crescendos da bambance-bambancen ƙara masu ɗauke da mahimman bayanai na kiɗa an rage su cikin sikeli, suna yin illa ga kasancewar da jin daɗin wasan kwaikwayon.

Yaɗuwar amfani da rikodin tef ɗin waƙa 16 ko fiye kuma yana ba da gudummawa ga matsalolin kewayo masu ƙarfi. Lokacin da aka haɗu da waƙoƙin tef guda 16 tare, ƙarar ƙarar tef ɗin tana ƙaruwa da 12 dB, yana rage ƙarfin aiki mai ƙarfi na mai rikodin daga 60 dB zuwa 48 dB. Sakamakon haka, injiniyan rikodi yana ƙoƙarin yin rikodin kowace waƙa a matsayin babban matakin da zai yiwu don rage tasirin haɓakar amo.

Ko da madaidaicin tef ɗin da aka gama zai iya samar da cikakken kewayon ƙarfi, dole ne a ƙarshe kiɗa, a canza shi zuwa diski na al'ada wanda ke da, ko da yake, kewayon 65 dB mai ƙarfi. Don haka, har yanzu muna da matsalar kewayon kida da yawa da yawa da ba za a iya yanke su akan fayafai karbabbe na kasuwanci ba. Haɗe tare da wannan matsala shine sha'awar kamfanonin rikodin da masu yin rikodin don a yanke bayanan a matsayin babban matakin da zai yiwu, don yin sautin rikodin su fiye da na masu fafatawa. Idan duk sauran abubuwan ana riƙe su akai-akai, rikodin sauti gabaɗaya yana yin haske (kuma “mafi kyau”) gabaɗaya fiye da mai shuru. Tashoshin rediyo kuma suna son a yanke rikodin a manyan matakai ta yadda sautin fayafai, buɗaɗɗen fayafai da dannawa za su kasance da ƙarancin ji a iska.

Ana canja wurin shirin da aka yi rikodin daga babban tef zuwa babban faifan ta hanyar yankan stylus wanda ke motsawa daga gefe zuwa gefe da sama da ƙasa yayin da yake rubuta tsagi na babban diski. Mafi girman matakin sigina, mafi nisa da stylus yana motsawa. Idan tafiye-tafiyen stylus sun yi girma sosai, ramukan da ke kusa da su na iya yanke zuwa juna suna haifar da murdiya, tsagi da tsalle-tsalle kan sake kunnawa. Don guje wa wannan, dole ne a baje ramukan da nisa lokacin da aka yanke sigina masu girma, kuma wannan yana haifar da ɗan gajeren lokacin wasa don yanke rikodin a manyan matakan. Ko da a zahiri ramukan ba su taɓa juna ba, sigina masu girman gaske na iya haifar da murdiya da tsallakewa saboda gazawar stylus na sake kunnawa don bin manyan balaguron balaguro. Yayin da ingantattun makamai da harsashi za su bi manyan balaguron balaguro, masu rahusa "'yan wasan rikodin" ba za su yi ba, kuma masana'antar rikodin *) dB ko decibel yanki ne na ma'auni don ƙarar ƙarar sauti. Yawancin lokaci ana bayyana shi a matsayin mafi ƙanƙantar sauyi mai sauƙin ganewa a cikin ƙara. Maƙarƙashiyar ji (mafi ƙarancin sautin da za ku iya fahimta) kusan 0 dB ne, kuma bakin zafi (makon da kuka rufe kunnuwanku da gangan) ya kai kusan 130 dB matakin matsa lamba.

Fadadawa. Bukatar, Cika

An daɗe ana gane buƙatar faɗaɗawa a cikin ingantaccen tsarin sauti.

A cikin 1930's, lokacin da compressors ya fara samuwa ga masana'antar rikodin, karbuwarsu ya kasance makawa. Compressors sun ba da shirye-shiryen mafita ga babbar matsalar rikodin rikodi - yadda za a dace da fayafai, wanda zai iya karɓar matsakaicin iyakar 50 dB kawai, kayan shirye-shiryen inda ƙarfin ya tashi daga matakin taushi na 40 dB zuwa matakin ƙara na 120 dB Inda a baya matakan ƙarar ƙara ya haifar da ɓarna mai yawa (kuma matakan taushi sun ɓace a cikin amo na baya), injin latsawa mai laushi yanzu yana ba da damar injin latsawa da latsawa yanzu. ƙara ta atomatik. A taƙaice, an canza gaskiya mai ƙarfi don dacewa da iyakokin yanayin fasaha. Ba da daɗewa ba ya bayyana a fili cewa sauti na gaske daga waɗannan iyakantaccen rikodin rikodi yana buƙatar jujjuya tsarin matsawa - faɗaɗa - don dawo da daidaito mai ƙarfi. Wannan yanayin bai canza ba a yau. A cikin shekaru 40 da suka gabata, an yi ƙoƙari da yawa don haɓaka masu faɗaɗa. Waɗannan yunƙurin sun kasance ajizai, a mafi kyau. Kunnen mai ilimi, ga alama, yana ɗan jurewa kurakurai da ke faruwa a cikin matsawa; Laifin faɗaɗa, duk da haka, suna bayyana a fili. Sun haɗa da yin famfo, rashin kwanciyar hankali da kuma murdiya - duk waɗannan ba za a yarda da su ba. Don haka ƙirƙira ingantaccen faɗaɗa mai inganci wanda ke kawar da waɗannan illolin ya zama makasudin da ba a taɓa gani ba. Wannan burin, duk da haka, yanzu an cimma shi. Dalilin da ya sa muka yarda da asarar haɓakar shirye-shiryen ba tare da ƙin yarda ba saboda wani abu mai ban sha'awa na psychoacoustic. Ko da yake an matsa sautin ƙara da taushin sauti zuwa matakan kamanni, har yanzu kunne yana tunanin zai iya gano bambanci. Yana yi - amma, abin sha'awa, bambancin ba saboda canje-canjen matakin bane amma ga canji a cikin tsarin jituwa Sautuna masu ƙarfi ba kawai nau'ikan sauti masu laushi ba ne. Yayin da girma ya ƙaru, adadin da ƙarfin juzu'i na karuwa daidai gwargwado. A cikin kwarewar sauraro, kunne yana fassara waɗannan bambance-bambance yayin da ƙarar murya ta canza. Wannan tsari ne ke sa matsawa karbuwa. A gaskiya mun yarda da shi sosai cewa, bayan dogon abinci na matsa lamba, kiɗan raye-raye wani lokaci yana da ban tsoro a cikin tasirinsa. Mai sarrafa AEC Dynamic Processor na musamman ne a cikin wannan, kamar tsarin kwakwalwarmu na kunne, yana haɗa bayanan tsarin jituwa guda biyu tare da ampcanjin litude a matsayin sabuwar hanya mai inganci don sarrafa faɗaɗawa. Sakamakon shi ne zane wanda ya shawo kan abubuwan da ke da ban sha'awa a baya don cimma matakin aiki wanda ba zai yiwu ba. AEC C-39 yana jujjuya matsawa da ƙayyadaddun ƙayyadaddun ƙayyadaddun abubuwan da ke cikin kusan duk rikodi don dawo da ingantaccen ingantaccen ingantaccen shirin shirin. Bugu da ƙari, waɗannan haɓakawa suna tare da raguwar amo mai ganuwa - raguwar ƙararrawa a cikin kurma, rumble, hum da duk amo. Advantages na AEC C-39 na iya yin tasiri mai mahimmanci ga ƙwarewar sauraro. Bambance-bambancen da ke da ƙarfi sune ainihin abubuwan da ke da ban sha'awa da bayyanawa a cikin kiɗa. Don gane cikakken tasirin hare-hare da masu wucewa, don gano ɗimbin cikakkun bayanai da ba ku sani ba ko da akwai a cikin rikodinku shine haɓaka sabbin sha'awa da sabon ganowa a cikin duka.

Siffofin

• Ci gaba da canzawa mai canzawa yana mayar da har zuwa 16 dB na kuzari ga kowane tushen shirin; records, tef, ko audiocast.
• Yadda ya kamata yana rage duk ƙaramar hayaniyar bango - hushi, rumble, da huma. Gabaɗaya sigina don haɓaka amo har zuwa 16 dB.
• Na musamman ƙananan murdiya.
• Haɗa haɓakawa sama da ƙasa tare da kololuwa mara iyaka don dawo da masu wucewa da cikakkun bayanai da ƙarin bambance-bambance masu ƙarfi na gaske.
• A sauƙaƙe saita da amfani. Ikon faɗaɗa ba shi da mahimmanci kuma ba a buƙatar daidaitawa.
• Nuni na LED mai saurin amsawa daidai yana bin aikin sarrafawa.
• Yana haɓaka hoton sitiriyo da ikon mai sauraro don bambance kowane kayan aiki ko murya.
• Matsayi mai gangara biyu yana sarrafa faɗaɗa don dacewa daidai da matsakaita da matsi sosai.
• Ya sami nasarar maido da tsoffin rikodi.
• Yana rage gajiyar sauraro a manyan matakan sake kunnawa.

Ƙayyadaddun bayanai

AEC C-39 Dynamic Processor / Bayani dalla-dalla

Na gode don sha'awar ku ga AEC C-39 Dynamic Processor. Muna alfahari da samfurinmu. Muna tsammanin babu shakka shine mafi kyawun faɗaɗa a kasuwa a yau. Shekaru biyar na bincike mai zurfi ya shiga haɓaka shi - binciken da ba wai kawai ya samar da sabuwar fasaha a cikin ƙirar faɗaɗa ba amma ya haifar da ba da haƙƙin mallaka guda biyu, tare da na uku yana jiran. Muna roƙonku ku kwatanta AEC C-39 tare da kowane mai faɗaɗa a cikin filin. Za ka same shi ba shi da ma'ana daga fantsama da hargitsi wanda wasu raka'a ke fama da su. Madadin haka, zaku ji ingantaccen sabuntawa na musamman na ainihin kuzari da cikakkun bayanai wanda matsawa ya cire. Za mu yi farin cikin jin martanin ku game da samfuranmu kuma, idan kuna da ƙarin tambayoyi, rubuta mana a kowane lokaci.