Umsindo westudio

Uyini umsindo?

Umsindo wemvelo igagasi le-acoustic elisakazeka emkhathini. Ngenxa yesitho sokuzwa, umuntu uyakwazi ukubona la maza, futhi ubukhulu bawo bunqunywa ngamaza. Imvamisa yamagagasi angazwakala insiza yokuzwa yomuntu iphakathi kwemikhawulo esuka ku-approx. 20 Hz kuya ku-approx. 20 kHz futhi lena imisindo ebizwa ngokuthi ezwakalayo. Njengoba akunzima ukuqagela, njengoba kunemisindo ezwakalayo, ngale kobubanzi baleli bhendi kukhona imisindo izindlebe zomuntu ezingakwazi ukuyizwa, futhi imishini yokuqopha ekhethekile kuphela engayiqopha.

Ukushuba komsindo nesilinganiso

Izinga lokuqina komsindo livezwa futhi likalwa ngama-decibel dB. Ukuze uthole umzekeliso ongcono, singabela amaleveli ngamanye emhlabeni osizungezile. Futhi ngakho: 10 dB kuzoba ukuhwashaza okuthambile kwamaqabunga, 20 dB ukuhleba, 30 dB ingafaniswa nomgwaqo othule, othule, 40 dB ukububula ekhaya, 50 dB umsindo ehhovisi noma ingxoxo evamile, 60 dB vacuum ukusebenza okuhlanzekile, indawo yokudlela ematasa engu-70 dB eneziteshi eziningi zesevisi, umculo ophezulu ongu-80 dB, ithrafikhi yedolobha engu-90 dB ngezikhathi zejubane, ukugibela isithuthuthu esingu-100 dB ngaphandle kwesithulisi noma ikhonsathi ye-rock. Emazingeni evolumu aphezulu, ukuchayeka emsindweni isikhathi eside kungalimaza ukuzwa kwakho, futhi noma yimuphi umsebenzi ohilela umsindo ongaphezu kuka-110 dB kufanele wenziwe kuma-headphone avikelayo, futhi isibonelo umsindo onezinga elingu-140 dB ungaqhathaniswa nokwethulwa kwe-fighter.

Ungawugcina kanjani umsindo

Ukuze umsindo uqoshwe ngendlela yedijithali, kufanele udlule kuziguquli ze-analog-to-digital, okungukuthi, ekhadini lomsindo lapho ikhompuyutha yethu ifakwe khona noma isixhumi esibonakalayo sangaphandle somsindo. Yibo abaguqula umsindo usuke efomini le-analogue uwenze uqoshwe ngedijithali bese uwuthumela kukhompyutha. Kunjalo, okufanayo kusebenza ngenye indlela futhi uma sifuna ukudlala ifayela lomculo elilondolozwe kukhompyutha yethu futhi sizwe okuqukethwe kwalo kuzipikha, okokuqala iziguquli kusixhumi esibonakalayo sethu, ngokwesibonelo, siguqule isiginali yedijithali ku-analog, bese emva kwalokho. likhululele izikhulumi.

Ikhwalithi yomsindo

Izinga lesampula nokujula kancane kubonisa ikhwalithi yomsindo. Imvamisa yesampula isho ukuthi mangaki amasampula azodluliswa ngomzuzwana, okungukuthi uma sino-44,1 kHz, okungukuthi njengoba ikwi-CD, kusho ukuthi amasampula ayizinkulungwane ezingama-44,1 adluliselwa lapho ngomzuzwana owodwa. Kodwa-ke, kukhona amaza aphakeme nakakhulu, aphezulu njengamanje angu-192kHz. Ngakolunye uhlangothi, ukujula kancane kusikhombisa ukuthi iluphi uhla oluguqukayo esinalo ekujuleni okunikeziwe, okungukuthi ukusuka emsindweni othule kakhulu ukuya kumabhithi ayi-16 uma kuyi-CD, enikeza u-96 dB futhi lokhu kunikeza amasampula angaba ngu-65000 ku-amplitude yokusabalalisa. . Ngokujula okukhulu kakhulu, isb amabhithi angu-24, inikeza ububanzi obuguquguqukayo obungu-144 dB kanye ne-approx. 17 million amasampula.

Ukunciphisa komsindo

Ukucindezela kusetshenziselwa ukufometha kabusha ifayela elilalelwayo noma levidiyo elinikeziwe lisuka kwelinye liye kwelinye. Kuyindlela yokupakisha idatha futhi inokusetshenziswa okukhulu kakhulu, isibonelo, uma ufuna ukuthumela ifayela elikhulu nge-imeyili. Khona-ke ifayela elinjalo lingacindezelwa, okungukuthi licutshungulwe ngendlela enjalo, futhi ngaleyo ndlela lingancishiswa kakhulu. Kunezinhlobo ezimbili zokucindezelwa komsindo: okulahlekile nokungalahleki. Ukucindezela okulahlekile kususa amabhendi athile ukuze ifayela elinjalo libe lincane izikhathi ezingu-10 noma ezingu-20. Ngakolunye uhlangothi, ukucindezela okungenakulahlekelwa kugcina ulwazi olugcwele mayelana nenkambo yesiginali yomsindo, noma kunjalo, ifayela elinjalo ngokuvamile lingancishiswa kungabi ngaphezu kokuphindwe kabili.

Lezi yizici eziyisisekelo ezihlobene eduze nomsebenzi womsindo nesitudiyo. Kukhona, kunjalo, ezinye izindaba eziningi, futhi ngayinye yazo ibaluleke kakhulu kule ndawo, kodwa wonke unjiniyela wemisindo oqalayo kufanele aqale ukuhlola ulwazi lwakhe nabo.