I-M-Audio M-Track Duo - isixhumi esibonakalayo somsindo

I-M-Audio, enokuvumelana okuphawulekayo, iqamba imikhiqizo yayo elandelayo ngokuthi i-M-Track. Isizukulwane sakamuva salokhu kuxhumana siheha ngentengo ephansi kakhulu, ama-Crystal preamp kanye nesoftware ehlanganisiwe.

Kunzima ukukucabanga, kodwa isixhumi esibonakalayo esigcwele somsindo esingu-2x2 njenge-M-Track Duo manje seshibhile kunezinye izintambo zesiginci! Kungenzeka ukuthi umhlaba usufinyelele onqenqemeni, noma kunemfihlo ethile kulo mshini okunzima ukuyiqonda. Ngenhlanhla, noma kunjalo. Incazelo elula yentengo ephansi ukusetshenziswa kwekhodekhi ephinde isekele ukudluliswa kwe-USB. Ngakho-ke, sine-analog-to-digital converter, digital-to-analog converter kanye neprosesa elawula umsebenzi wabo ngendlela yesifunda esisodwa esihlanganisiwe, kulokhu okuyi-Burr Brown PCM2900. Kodwa-ke, ukuguquguquka, ngaphezu kokulula kanye nentengo ephansi yesisombululo sonke, kuhlotshaniswa nemikhawulo ethile.

Izingcezu 16

Eyokuqala ukusetshenziswa kwephrothokholi ye-USB 1.1, okuphuma kulesi simo ukuguqulwa kwe-16-bit ngesampula efinyelela ku-48 kHz. Lokhu kubangela ububanzi obuguquguqukayo obungeqi ku-89 dB kumodi ye-analog-to-digital, kanye no-93 dB kumodi yedijithali-kuya-analog. Lokhu okungenani kungaphansi kwe-10 dB kunezixazululo ezisetshenziswa kakhulu ezingama-24-bit namuhla.

Kodwa-ke, uma sicabanga ukuthi idivayisi izosetshenziselwa ukurekhoda kuphela ku-studio sasekhaya, khona-ke ukurekhoda kwe-16-bit ngeke kube umkhawulo onzima kithi. Phela, izinga elimaphakathi lomsindo, ukuphazamiseka kanye nezinhlobo ezahlukene zemisindo ezungezile, ngisho nasekhabetheni elithule, lilinganiselwa ku-40 dB SPL. Kububanzi obungu-120 dB obuguquguqukayo bomsindo womuntu, kuphela u-80 dB otholakala kithi. Umbhobho kanye ne-preamplifier kuzongeza okungenani u-30 dB womsindo wazo, ukuze uhla lwangempela oluguquguqukayo lwesiginali ewusizo erekhodiwe lube ngokwesilinganiso esingu-50-60 dB.

Pho kungani kusetshenziswa i-computing ye-24-bit? Ukuze uthole i-headroom eyengeziwe nokusebenza endaweni ethule kakhulu yesitudiyo sochwepheshe esinamamakrofoni ekhwalithi ephezulu enomsindo omncane kanye namapreampu okwakheka komsindo aphezulu. Kodwa-ke, kunezizathu ezimbalwa zokuthi kungani ukuqoshwa kwe-16-bit ku-studio sasekhaya kungeke kube isithiyo ekutholeni ukuqoshwa okuzwakalayo okwanelisayo.

design

Ama-preamp ama-microphone ayimiklamo eklanywe ngokucophelela enokufakwa kwe-transistor kanye nokuzuza kwe-voltage okwenziwa yi-op amp. Ngakolunye uhlangothi, okokufaka komugqa kunendlela ehlukile yokukhulisa, futhi okokufaka kwesiginci kunebhafa ye-FET. Imiphumela yolayini ibhalansiswa nge-elekthronikhi futhi ifakwe kubhafa, kuyilapho okokukhiphayo kwe-headphone kune-amplifier ehlukile. Konke lokhu kudala isithombe sesixhumi esibonakalayo esilula kodwa esicatshangelwayo esinokufakwayo okubili kwendawo yonke, ukuphuma kwemigqa emibili kanye nokuphuma kwe-headphone. Kumodi yokuqapha izingxenyekazi zekhompuyutha, singashintsha kuphela phakathi kwezikhathi zokulalela kusuka ngaphakathi kwesofthiwe ye-DAW; kusuka kuma-mono inputs (kokubili azwakalayo kuzo zombili iziteshi) kanye ne-DAW; kanye nesitiriyo (esinye kwesokunxele, esisodwa kwesokudla) kanye ne-DAW. Nokho, awukwazi ukuhlanganisa izilinganiso zesignali yokufaka nesignali yangemuva.

Ngaphandle kokunaka izilungiselelo zokuqapha, okokufaka kuthunyelwa ku-USB futhi kubonakala ezinhlelweni ze-DAW njengembobo ye-USB Audio Codec eneziteshi ezimbili. Okokufaka kwe-combo okuzenzakalelayo kumodi yemakrofoni lapho ipulaki ye-XLR ixhunyiwe, kuyilapho ivula ipulaki engu-6,3mm TS noma ye-TRS yenza kusebenze ulayini noma imodi yensimbi, kuye ngokulungiselelwa kweswishi.

Umzimba wonke we-interface wenziwe ngepulasitiki, futhi ama-potentiometers atholakala ezindaweni ezipholile. Izembozo zabo ezenziwe ngenjoloba zenza ukuphatha kube lula kakhulu. Amajekhi okokufaka anamathiselwe ngokuqinile kuphaneli, futhi ojeke bokuphuma abavami ukugegetheka ngokweqile. Wonke amaswishi asebenza ngokushelela nangokuthembekile. Ama-LED asephaneli yangaphambili abonisa ubukhona nokuhlanekezelwa kwesignali yokokufaka kanye nokusebenza kwe-voltage ye-phantom evamile kukho kokubili okokufaka.

Idivayisi inikwa amandla yimbobo ye-USB. Siwaxhuma kumakhompyutha we-Mac ngaphandle kwesidingo sokufaka abashayeli, futhi esimweni seWindows, abashayeli be-ASIO bangalandwa kuwebhusayithi yomkhiqizi.

Ekuzijwayeza

Asikho inkomba yokuvula amandla kusixhumi esibonakalayo, kodwa lokhu kungabhekwa ngokuvula i-phantom voltage okwesikhashana okokufaka. Ibanga lokulungisa lokuzwela okokufaka kwemakrofoni licishe libe ngu-55 dB. Ukulawulwa okuphelele kwethrekhi ye-DAW ngesignali yemakrofoni ye-condenser evamile yezwi ingatholwa ngokusetha inzuzo ibe cishe ku-75% webanga lokulungiswa. Endabeni yama-guitar kagesi, kuzoba, kuye ngokuthi insimbi, kusuka ku-10 kuya ku-50%. Okokufaka komugqa kunokuzwela okungu-10 dB okungaphansi kwalokho kokokufaka kwemakrofoni. Izinga lokuhlanekezela nomsindo ekuphumeni kungu--16 dB ojwayelekile kuma-interface angu-93-bit, ngakho yonke into injengoba kufanele ibe maqondana nalokhu.

Inkinga ethile ingase iphakame lapho ulalela isignali evela kokufakwayo kwemakrofoni - kuma-headphone, kungakhathaliseki ukuthi yiziphi izilungiselelo, izohlale iphuthelwa. Lena inkinga evamile enezindawo eziningi zokulalelwayo ezishibhile, ngakho-ke ngeke ngiphikise ngakho, nakuba ngokuqinisekile kungeke kwenze umsebenzi wakho ube lula.

Ama-preamp ama-Mic anokweqa okubukhali ekuzweleni ngasekugcineni kwebanga lokulawula, futhi ama-Hain knobs ashwibeka kakhulu - lobu obunye ubuhle bezixazululo ezishibhile. Okukhipha i-headphone kuyisignali efanayo nemiphumela yomugqa, kuphela esingalungisa amazinga azo ngokuzimela.

Inqwaba yesofthiwe etholakalayo ihlanganisa ama-plug-ins angu-20 Avid, imojuli yomsindo ebonakalayo ye-Xpand!2 kanye ne-plug-in ye-Eleven Lite guitar amp emulation.

Isifinyezo

I-M-Track Duo iyisixhumi esibonakalayo esisebenzayo, esisebenza kahle futhi esingabizi kakhulu esikuvumela ukuthi urekhode imibhobho nezinsimbi zikagesi neze-elekthronikhi kusitudiyo sakho sasekhaya. Azikho iziqhumane noma izixazululo zobuchwepheshe ezihlukile, kodwa konke okukuvumela ukuthi uqedele umsebenzi ngomzamo omncane kakhulu. Okokuqala, singasebenzisa izixhumi ze-XLR, TRS kanye ne-TS, okungabonakali kangako kulolu hlu lwamanani. Kukhona ama-preamplifiers anele akhiqizayo, isikhulisi samakhanda esikhiqiza kahle kanye nekhono lokuxhuma iziqapha ezisebenzayo ngaphandle kwanoma yimaphi ama-adaptha nama-vias.

Umkhawulo ezinhlelweni ezithuthuke kakhulu kuzoba ukulungiswa kokuguqulwa kwe-16-bit kanye nokulawulwa kwekhwalithi okumaphakathi kwesiginali evela kokokufaka kwemakrofoni. Ungase ube nokungabaza mayelana nokuzinza kwezilawuli zenzuzo, futhi kufanele nakanjani ugweme ukuzibeka phezulu ngesikhathi sokulalela okusebenzayo. Kodwa-ke, lezi akuzona ezimbi ukuthi eminye imikhiqizo, ngisho ebiza kakhulu, ngeke ikhululeke ngokuphelele.

Akungabazeki ukuthi ngendlela ye-M-Track Duo sinendawo eyodwa eshibhe kakhulu yomsindo engu-2x2 emakethe, ukusebenza kwayo okungeke nakancane kukhawulele ukuthuthukiswa kwethalente labasebenzisi bayo noma ikhono lokukhiqiza umculo. esitudiyo sasekhaya.