Latency - menene kuma ta yaya kuke magance shi?

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Kowane ƙwararren - ko ƙwararren injiniyan sauti ya kamata ya tabbatar da cewa rikodi a cikin ɗakin karatunsa ya faru tare da jinkiri mafi ƙasƙanci - saboda wannan shine zai iya lalatawa sosai ba kawai sunansa na aikinsa ba, har ma - mafi mahimmanci, rikodin rikodin ƙarshe.

A farkon wannan labarin, zan so in ambaci ɗaya daga cikin kalmomin da za mu yi amfani da su daga baya a cikinsa. Latency

rashin laka - wannan shine lokacin da ake ɗaukar siginar sauti don tafiya daga shigarwar akan katin sauti zuwa shirin rikodi. Ana auna wannan lokacin a cikin millise seconds (ms).

Gabaɗaya, ra'ayin shine tabbatar da cewa matakin jinkirin siginar yana da ƙasa kaɗan gwargwadon yuwuwar lokacin rikodin.

Jinkirin siginar da ke ratsa katin sauti na madauki (a)> kwamfuta> katin sauti (fita) na iya zama daga da yawa zuwa dubun milliseconds. Ya danganta duka biyun akan ingancin mahaɗan da ake amfani da su, girman block (buffer) da ƙarfin kwamfuta da muke amfani da su don yin rikodin. A ƙarshe dole ne ta shawo kan jujjuya sau biyu na analog zuwa dijital (da akasin haka) ta hanyar ADC (Analog-To-Digital) da DAC (Digital-To-Analog). Hakanan ya kamata ku ƙara plug-ins da ake amfani da su a cikin shirin rikodi, yawancinsu suna ƙara ɗan jinkiri “bangare”.

Latency na 10ms ba zai zama matsala ga mafi yawan masu amfani da kayan aiki ba (guitarists, bassists, keyboardists), amma yana iya zama matsala musamman ga masu murya, masu gandun gandun daji - saboda suna buƙatar jinkiri kadan kamar yadda zai yiwu a lokacin rikodi. Ba ku yarda ba? Yi gwaji. Saita kwamfutar don cimma latency sama da 20ms (wataƙila ma ƙasa da ƙasa) kuma kuyi ƙoƙarin yin waƙa 🙂 Ƙarshe zai kasance mai sauƙi.

To yaya za ku yi da shi?

1) Mafi kyawun…

… (Idan muna da katin sauti mai dacewa) za mu iya amfani da aikin haɗin kai tsaye / USB. Yawancin mu'amalar sauti na zamani suna da ƙulli wanda ke ba ka damar daidaitawa tsakanin sauraron abin da ke shiga cikin mahallin da abin da muke aikawa daga kwamfutar. Ta wannan hanyar (lokacin yin rikodin sauti, alal misali) za mu iya sauraron muryar tare da latency ba tare da buƙatar sauraron shirye-shiryen rikodi ba kuma ƙarar bango za a iya "gauraye" tare da maɓallin Direct / USB da aka ambata.

Ƙarin manyan katunan sauti sau da yawa suna da ƙarin software wanda ke ba ku damar ƙirƙirar gaurayawan ɗaiɗaikun ga kowane kayan aiki. Ta wannan hanyar, lokacin yin rikodin manyan makada, za mu iya ƙirƙirar mahaɗin kayan aikin mutum ɗaya waɗanda kowane mawaƙi ke son ji "a cikin kunne".

2) Rage girman toshe / buffer.

Bincika girman buffer ɗin da kuke amfani da shi a cikin saitunan katin sautinku. A cikin mashahurin shirin rikodi na Reaper, masana'anta sun sanya wannan bayanin a kusurwar dama ta sama na babban taga, inda ake ƙididdige latency na I / O a ainihin lokacin.

Ana ba da shawarar saita ƙaramin buffer mafi ƙarancin (misali 64) yayin rikodin don tabbatar da mafi ƙarancin jinkiri da mafi girma yayin haɗuwa - don babban kwanciyar hankali. Wani lokaci, duk da haka, aikin kwamfutar ba ya ƙyale ka saita irin wannan ƙananan ƙima, don haka wannan filin don gwaji - gwada abin da dabi'u ke aiki da kyau kuma a tsaye a gare ku - yawanci (misali don rikodin guitar) masu girma kamar haka. 128 sun yi daidai.

3) Direbobin ASIO daidaitattun…

… kuma sau ɗaya sun zama software na juyin juya hali wanda ya ba ku damar yin rikodin kiɗa tare da ƙarancin latency. A yau ana amfani da su tare da mafi yawan (har ma da ci gaba sosai) katunan sauti - sau da yawa kawai a cikin sigogin da aka inganta don yin aiki tare da na'urar da aka bayar.

Idan kuna fara kasadar ku tare da yin rikodi kuma kuna amfani da, misali, katin sauti mai sauƙi da aka gina a cikin kwamfutarka, tabbas ya kamata ku kula da shi. free ASIO software. Zai ba ka damar canza girman buffer kuma inganta katin sauti don "matsi" daga cikinsa da ɗan jinkiri kamar yadda zai yiwu.

Wannan software kuma tana ba ku damar “haɗa” katunan sauti da yawa don ƙarin I / O – amma ba a ba da shawarar yin hakan ba. A cikin yanayin irin wannan buƙatar, yana da kyau a yi amfani da keɓaɓɓun hanyoyin sadarwa tare da zaɓuɓɓukan faɗaɗawa (misali ta ADAT).

Tabbas, akwai wasu hanyoyin da za a magance latency

Kamar yin amfani da mahaɗar waje, saitin da ke ba ka damar sarrafa sautin sauti, amma a mafi yawan lokuta waɗannan ba za su zama ingantaccen bayani ba kuma suna iya juya rikodin zuwa ainihin mafarki mai ban tsoro. Muna rayuwa ne a lokacin da kowa zai iya ƙirƙirar kayan sauti masu kyau a cikin gidansa tare da taimakon musaya, wanda farashin ya kasance a matakin da yawancinmu za su iya samun na ɗan lokaci.

Ka tuna…

… cewa lokacin da kuke tunani game da rikodin ƙwararru, kuna buƙatar kulawa ba kawai kayan aikin ƙwararrun ƙwararru ba, microphones, damping, da sauransu har zuwa rumbun kwamfutarka, ba za ku taɓa gamsuwa sosai ba (naku kuma - mafi mahimmanci) abokan cinikin ku. wanda, lokacin zuwa ɗakin studio, yana tsammanin kyakkyawan inganci da babban ta'aziyyar aiki.