I-Decibel: Iyini Futhi Isetshenziswa Kanjani Ekukhiqizeni Umsindo

ngo kim Kubuyekezwe: June 29, 2022

I-Decibel iyunithi yokulinganisa esetshenziselwa ukukala ukushuba kwe kuzwakale. Isetshenziswa kakhulu ekukhiqizeni umsindo kanye nobunjiniyela bomsindo.

I-Decibel ifushanisiwe njenge-(dB), futhi ingenye yezinto ezibaluleke kakhulu uma kuziwa kukho kokubili ukurekhoda nokudlalwa komsindo.

Kulesi sihloko, sizoxoxa ngezisekelo ze-decibel, ukuthi isebenza kanjani nokuthi ungayisebenzisa kanjani ukuze uzuze lapho wenza umsindo.

Incazelo ye-decibel

I-decibel (dB) iyiyunithi ye-logarithmic esetshenziselwa ukukala izinga lokucindezela komsindo (ukuphakama komsindo). Isikali se-decibel asijwayelekile ngoba indlebe yomuntu izwela ngendlela emangalisayo. Izindlebe zakho zingakwazi ukuzwa yonke into kusukela komunwe wakho ixubha kancane esikhunjeni sakho kuya enjinini yejethi ephezulu. Mayelana namandla, umsindo wenjini yejethi unamandla ngokuphindwe izikhathi ezingu-1,000,000,000 kunomsindo omncane ozwakalayo. Lowo umehluko ophambene futhi ukuze sikwazi ukuhlukanisa kangcono umehluko omkhulu kangaka emandleni sidinga isikali se-decibel.

Isikali se-decibel sisebenzisa inani le-logarithmic eliyisisekelo-10 lesilinganiso phakathi kwezilinganiso ezimbili ezihlukene ze-acoustic: Izinga Lokucindezela Komsindo (SPL) kanye Nokucindezela Komsindo (SP). I-SPL yilokho ojwayele ukucabanga ngakho uma ucabangela ukuphakama - ikala ukuthi angakanani amandla omsindo endaweni ethile. Ngakolunye uhlangothi, i-SP ikala ukushintsha komfutho womoya obangelwa igagasi lomsindo endaweni eyodwa emkhathini. Zombili izilinganiso zibaluleke ngendlela emangalisayo futhi zisetshenziselwa ukukala imisindo ezinhlelweni zomhlaba wangempela njengezitudiyo zokuqopha noma amahholo.

I-Decibel iyingxenye yeshumi (1/10th) ye-Bel eyaqanjwa ngo-Alexander Graham Bell - umsunguli u-Anthony Gray uchaza ukuthi "insimbi eyodwa ihambisana kanjani nokuzwela kwe-acoustic izikhathi eziyishumi ezingaphezu kwalokho ezingabonwa abantu" - Ngokuhlukanisa leyunithi ibe Izingxenye ezincane ezingu-10 singakwazi ukulinganisa kangcono umehluko omncane ekukhishweni kwe-sonic futhi sinike amandla ukuqhathanisa okulula phakathi kwamathoni nokuthungwa ngokunemba kakhudlwana. Ngokujwayelekile izinga lereferensi elingu-10 dB lizosho ukuthi awukho umsindo ozwakalayo, kuyilapho u-0 dB uzosho umsindo omncane kodwa ozwakalayo; I-20 dB kufanele ibe phezulu ngokuphawulekayo kodwa ingakhululeki ezikhathini ezinwetshiwe zokulalela; I-40-70 dB izofaka ubunzima obuningi ezindlebeni zakho ngamafrikhwensi aphezulu ebhendi aqala ukuhlanekezela ngenxa yokukhathala; ngaphezu kuka-80-90dB ungaqala ukubeka engcupheni yokulimala unomphela ezindlebeni zakho uma uvezwa isikhathi eside ngaphandle kwegiya elifanele lokuvikela.

Izinyathelo zokulinganisa

Ekukhiqizeni umsindo, izilinganiso zisetshenziselwa ukulinganisa ubukhulu noma ukuqina kwamagagasi omsindo. Ama-decibel (dB) ayiyunithi yokulinganisa esetshenziswa kakhulu uma kuxoxwa ngokuphakama komsindo futhi asebenza njengesikali sereferensi sokuqhathanisa imisindo ehlukene. Yileli khono elisivumela ukuthi sinqume ukuthi umsindo othile unomsindo kangakanani uma uqhathaniswa nomunye.

I-Decibel isuselwa emagameni amabili esiLatini: deci, okusho ingxenye eyodwa kweshumi, kanye ne-belum, eyaqanjwa ngo-Alexander Graham Bell ukuhlonipha amagalelo akhe kuma-acoustics. Incazelo yayo inikezwa ngokuthi “ingxenye yeshumi ye-bel” yona engachazwa ngokuthi “iyunithi yokuqina komsindo”.

Ibanga lamazinga okucindezela komsindo aqashelwa izindlebe zomuntu lehla lisuka ngaphezu kuka-0 dB ekugcineni eliphansi (akuzwakali kahle) lifike cishe ku-160 dB ekugcineni elingaphezulu (umkhawulo obuhlungu). Izinga le-decibel lengxoxo ethule phakathi kwabantu ababili abaqhelelene ngemitha elilodwa kuphela licishe libe ngu-60 dB. Ukuhlebeza okuzolile kungaba ngu-30 dB kuphela kanti umsiki wotshani ojwayelekile uzobhalisa cishe ku-90–95 dB kuye ngokuthi ukalwa kude kangakanani.

Lapho usebenza ngemisindo, kubalulekile ukuthi onjiniyela bomsindo nabakhiqizi baqaphele ukuthi imithelela efana ne-EQ noma ukuminyanisa ingase ishintshe ileveli ye-decibel iyonke ngaphambi kokuthunyelwa kwamanye amazwe noma ukukhishwa ukuze kufundwe kahle. Ukwengeza, izigaba ezinomsindo owedlulele kufanele zenziwe zibe ngokwejwayelekile noma zehliswe ngaphansi kuka-0 dB ngaphambi kokuthekelisa iphrojekthi yakho ngaphandle kwalokho ungase uhlangabezane nezinkinga zokunqamula lapho uzama ukudlala futhi impahla yakho ngokuhamba kwesikhathi.

Ukuqonda i-Decibel

I-Decibel iyisistimu yokulinganisa esetshenziselwa ukukala ukushuba kwamagagasi omsindo. Ivame ukusetshenziselwa ukuhlaziya ikhwalithi yomsindo, thola ukuphakama komsindo, bese ubala izinga lesignali. Ekukhiqizweni komsindo kubalulekile ukuqonda izisekelo ze-decibel njengoba isetshenziselwa ukukala ukushuba kwamagagasi omsindo ukuze kuthuthukiswe ukuqoshwa, ukuxutshwa, kanye nokwenza kahle. Kulesi sihloko, sizohlola umqondo we-decibel nokuthi ingasetshenziswa kanjani ekukhiqizeni umsindo.

Isetshenziswa kanjani i-decibel ekukhiqizeni umsindo

I-Decibel (dB) iyunithi yokulinganisa yezinga lomsindo futhi isetshenziswa kustudiyo sokuqopha nangaphandle kwabaculi. Isiza ochwepheshe bomsindo bazi ukuthi bawalungise nini amazinga omsindo noma bavule imakrofoni ngaphandle kokwesaba ukuhlanekezela noma ukunqanyulwa. Ama-decibel nawo angukhiye wokuthuthukisa ukubekwa kwesipikha sakho nokwenza ngcono umsindo nokuqonda ama-decibel kungasiza ukuqinisekisa ukuthi sonke isikhala sakho singezwa ikhwalithi yomsindo ehamba phambili.

Ezilungiselelweni eziningi, ileveli yedecibel phakathi kuka-45 no-55 dB ilungile. Leli zinga lizonikeza ukucaca okwanele kuyilapho futhi igcina umsindo ongemuva ube ubuncane obamukelekayo. Uma ufuna ukuphakamisa ububanzi bephimbo, yinyuse kancane kancane phakathi kokunyuka okungu-5 no-3 dB ize ifike ezingeni elingazwakala ngokucacile kuyo yonke indawo kodwa ngempendulo encane noma ukuhlanekezela.

Uma wehlisa amaleveli e-decibel, ikakhulukazi ekudlalweni okubukhoma, qala ngokunciphisa insimbi ngayinye kancane kancane ngokunyuka okungu-4 dB kuze kube yilapho uthola leyo ndawo emnandi ebhalansisa insimbi ngayinye ngendlela efanele; Nokho, khumbula njalo ukuthi ezinye izinsimbi zidinga ukuhlala ziqinile ngesikhathi sokuguquguquka kwebanga eligcwele njengabashayi besigubhu abadlala amaphethini agcwele noma abacula ngabodwana abadlala ngabodwana abanwetshiwe. Uma ukusebenza kwebhendi egcwele kwenzeka ngaphandle kokulungiswa okufanele bese wehlisa zonke izinsimbi ngo-6 kuya ku-8 dB ngokunyuka kuye ngokuthi insimbi ngayinye idlala phezulu kangakanani phakathi kwebanga elifanele.

Uma amaleveli e-decibel afanelekile esethelwe amathuluzi ahlukahlukene egumbini elithile kulula ukuphindaphinda lezo zilungiselelo kwamanye amagumbi anemiklamo efanayo uma kusetshenziswa imibhobho eminingi exhunywe ngokuphuma komugqa ophuma ebhodini elilodwa esikhundleni sokuthepha kwemakrofoni ngakunye ebhodini elilodwa ekamelweni ngalinye. Kubalulekile hhayi ukwazi kuphela ukuthi mangaki ama-decibel afanelekile kodwa nokuthi kufanele alungiswe kuphi ukuze ukhethe ukubekwa kwamakrofoni okulungile ngokosayizi wegumbi, izinhlobo zezinto ezisetshenziswa endaweni ephansi, izinhlobo zamafasitela njll. Zonke lezi zici zidlala phakathi. udala amazinga omsindo angaguquguquki acacile kunoma iyiphi indawo eqinisekisa ukuthi umkhiqizo wakho uzwakala kahle kungakhathaliseki ukuthi uzwakala kuphi!

Isetshenziswa kanjani i-decibel ukukala ukushuba komsindo

I-Decibel (dB) iyunithi esetshenziselwa ukukala ukushuba komsindo. Ikalwa kakhulu ngemitha ye-dB, eyaziwa nangokuthi imitha ye-decibel noma imitha yezinga lomsindo, futhi ivezwa njengesilinganiso se-logarithmic phakathi kwamanani amabili aphathekayo — ngokuvamile i-voltage noma ingcindezi yomsindo. Ama-decibel asetshenziswa kubunjiniyela be-acoustic nasekukhiqizweni komsindo ngenxa yokuthi asivumela ukuthi sicabange ngokuya ngokuzwakalayo okuhlobene esikhundleni sobukhulu obuphelele, futhi asivumela ukuthi sihlobanise izici ezihlukile zesignali ye-acoustic.

Ama-decibel angasetshenziswa ukukala ukushuba komsindo okhiqizwa izinsimbi zomculo, kokubili esiteji nasestudiyo. Zibalulekile ekunqumeni ukuthi sifuna izixube zethu nezikhulisa-msindo zibe phezulu kangakanani; sidinga i-headroom engakanani phakathi kwemibhobho yethu; ingakanani ingoma okumelwe yengezwe ukuze ilethe ukuphila emculweni; kanye nezici ezifana nama-studio acoustics. Ekuxubeni, amamitha e-decibel asisiza ukuthi silungise izilungiselelo ze-compressor ngayinye ngokusekelwe kumazinga amaphakathi omhlaba, kuyilapho ukwazi ukuba khona kwawo kungasiza ukugcina okukhiphayo okuphezulu ngaphandle kokusikwa okungadingekile noma ukuhlanekezela.

Ngokungeziwe ezinhlelweni zayo eziphathelene nezinsimbi, ama-decibel awusizo kakhulu ekukaleni umsindo kuma amaleveli afana ne-office hum noma umsindo webhasi ngaphandle kwefasitela lakho - noma yikuphi lapho ongathanda ukwazi khona ukushuba komthombo womsindo. Amaleveli e-Decibel aphinde anikeze imihlahlandlela ebalulekile yokuphepha okungafanele ishaywe indiva lapho ukhiqiza umculo ngamavolumu aphezulu: ukuchayeka isikhathi eside kumsindo onamandla angaphezu kuka-85 dB kungabangela ukulahlekelwa ukuzwa, i-tinnitus kanye nomunye umthelela omubi empilweni yakho. Ngakho-ke kubalulekile ngaso sonke isikhathi ukusebenzisa amahedfoni ekhwalithi noma iziqapha noma nini lapho kungenzeka - hhayi nje kuphela ngemiphumela emihle yokuhlanganisa kodwa futhi nokuvikela emonakalweni wesikhathi eside obangelwa ukuchayeka ngokweqile emisindweni ephezulu.

I-Decibel ekukhiqizweni komsindo

I-Decibel (dB) isilinganiso esibalulekile samazinga omsindo ahlobene futhi isetshenziswa ekukhiqizeni umsindo. Futhi iyithuluzi eliwusizo lokulinganisa ukuphakama komsindo kanye nokulungisa amazinga ekurekhodweni komsindo. Kulesi sihloko, sizohlola ukuthi ama-decibel angasetshenziswa kanjani ekukhiqizeni umsindo nokuthi yini okufanele uyikhumbule lapho usebenzisa lesi silinganiso.

Izinga le-Decibel kanye nomthelela walo ekukhiqizweni komsindo

Ukuqonda nokusebenzisa amaleveli e-decibel kubalulekile kochwepheshe bokukhiqiza umsindo, njengoba kubavumela ukuthi balinganise ngokunembile futhi balawule ivolumu yokurekhodwa kwabo. I-Decibel (dB) iyunithi yokulinganisa esetshenziselwa ukukala ukushuba komsindo. Isetshenziswa kabanzi ezindaweni ezahlukahlukene ezihlanganisa amasistimu omsindo, ubunjiniyela, nokukhiqizwa komsindo.

Umsindo udinga ama-decibel ukuze uzwe indlebe yomuntu. Kodwa ngezinye izikhathi ivolumu enkulu ingabangela ukulimala kwezindlebe, ngakho-ke kubalulekile ukwazi ukuthi into izoba phezulu kangakanani ngaphambi kokukhuphula ama-decibel phezulu kakhulu. Ngokwesilinganiso, abantu bangezwa imisindo ukusuka ku-0 dB kuye ku-140 dB noma ngaphezulu. Noma yini engaphezu kuka-85 dB inamandla okulimala kwezindlebe kuye ngokuthi ubude besikhathi kanye nemvamisa yokuchayeka, ukuchayeka okuqhubekayo kubhekwa njengokuyingozi ikakhulukazi.

Mayelana nokukhiqizwa komsindo, izinhlobo ezithile zomculo ngokuvamile zidinga amazinga e-decibel ahlukene - isibonelo, umculo we-rock uvame ukudinga ama-decibel aphezulu kunomculo we-acoustic noma i-jazz - kodwa kungakhathaliseki ukuthi hlobo luni noma uhlobo lokurekhoda, kubalulekile ukuthi abakhiqizi bomsindo bahlale khumbula ukuthi ukukhala kwezwi kakhulu kungase kungaholeli nje ekuphathekeni kabi kwezilaleli kodwa futhi kungase kubangele ukungezwa. Lokhu kusho ukuthi onjiniyela abangompetha kufanele balinganisele amazinga aphezulu lapho bedala ukurekhodwa okuqondiswe ezimakethe zabathengi ngokusebenzisa ukucindezela okuguquguqukayo kanye nokukhawulela amazinga okuphuma kwezingxenyekazi zekhompuyutha ngenkathi uqopha ukuze kuvinjwe ukuhlanekezela futhi kuqinisekiswe ukuzizwisa okuphelele kokulalela ngaphandle kokweqa izinga eliphephile lomsindo omkhulu. Ukusiza ukunciphisa noma yikuphi ukungezwani kwe-sonic phakathi kokurekhodwa kufanele basebenzise ukulinganisa ngendlela efanele lapho behlanganisa amathrekhi ahlukene futhi baqinisekise ileveli yokufaka engaguquki kuyo yonke imithombo.

Ungawalungisa kanjani amaleveli e-decibel ukuze ukhiqize umsindo osezingeni eliphezulu

Igama elithi 'decibel' livame ukusetshenziswa ekukhiqizeni umsindo, kodwa lisho ukuthini ngempela? I-decibel (dB) iyunithi yokulinganisa esetshenziselwa ukunquma izinga lokuqina noma lomsindo. Ngakho-ke, uma ukhuluma ngokukhiqizwa komsindo namaleveli, i-dB ikhombisa ngokusobala inani lamandla kufomethi yegagasi ngayinye. Lapho inani le-dB liphakeme, kuba namandla noma ukushuba okwengeziwe kufomethi yegagasi enikeziwe.

Lapho ulungisa amaleveli e-decibel okukhiqiza umsindo, ukuqonda ukuthi kungani amaleveli e-decibel enza umehluko kubaluleke njengokuqonda ukuthi uwalungisa kanjani ngendlela efanele. Esikhaleni esikahle sokurekhoda, kufanele uhlose imisindo ethulile engadluli ku-40dB nemisindo ephezulu engekho ngaphezu kuka-100dB. Ukulungisa izilungiselelo zakho ngaphakathi kwalezi zincomo kuzosiza ukuqinisekisa ukuthi ngisho nemininingwane emincane iyazwakala nokuthi ukuhlanekezela okuvela kuma-SPL aphezulu (Izinga Lokucindezela Komsindo) kungancishiswa kakhulu.

Ukuze uqale ukulungisa izilungiselelo zakho ze-decibel qiniseka ukuthi uhlola i-acoustics yegumbi lakho kusengaphambili njengoba lokhu kuzoba nomthelela kulokho okuzwayo lapho udlala. Ungasebenzisa enye yezindlela ezimbili — ukulungisa mathupha noma ukwenza kahle okuqhutshwa yidatha — ukuze ulinganise kahle indawo yakho yokurekhoda.

Ukulungisa mathupha kudinga ukusetha ithoni yesiteshi ngasinye ngasodwa futhi kuncike ezindlebeni zakho ukuze unqume izilungiselelo ezingcono kakhulu zemiksi ngayinye yesiteshi. Le ndlela ikuvumela ukuba uguqule ubuciko obuphelele kodwa idinga isineke nekhono njengoba uhlola ukuthi amathoni ahlukene axhumana kanjani ukuze uzuze ikhwalithi yomsindo ephezulu ngokulinganisa phakathi kwazo zonke izici zokuhlanganisa phansi.

Kodwa-ke, ngokuthuthukiswa okuqhutshwa yidatha, ama-algorithms esofthiwe asebenza ngokushesha nangendlela enengqondo ukuze akhulise ngokuzenzakalelayo amazinga kuzo zonke iziteshi ngesikhathi esisodwa ngokusekelwe ekuhlaziyweni kwedatha ye-acoustic evela kuzo zonke izici zamagumbi - ukonga isikhathi ngaphandle kokudela ubuhlakani bokusungula: Uma isethwa ngamapharamitha afanelekile afakwa ngaphambili unjiniyela onjengamazinga osilingi omsindo akhethwayo wamaza athile njll., amasistimu athile wokuzenzakalela njenge-SMAATO angabeka ngokunembile amasiginali amaningi ngokufanelekile endaweni yawo ye-sonic ngaphandle kokulungiswa okumba eqolo okwenziwe ngesandla ngokunikeza onjiniyela bomsindo ukufinyelela okusheshayo ekulevelini okuzenzakalelayo okuthembekile ngaphandle kokufaka engcupheni ikhwalithi ukuze isebenze kahle. ukuphathwa kokuhamba komsebenzi ngezikhathi zobumpofu ngenxa yezikhathi eziqinile njll.
Kungakhathaliseki ukuthi iyiphi indlela oyisebenzisayo qinisekisa ukuthi ama-headphone afanele okuqapha axhunyiwe ngaphambi kokwenza noma yikuphi ukulungisa ukuze izinkinga ezihlobene nokushintshashintsha kwethoni noma ukufiphala kwamafrikhwensi athile kube lula ukubonakala ngokushesha ngesikhathi sokulungiswa bese uthuthukisa ukunemba ngokuvumela okuguquguqukayo okufana nanoma yimiphi imiphumela yokulinganisa bukhoma. njl. lapho wabelana ngomculo noma izinto ezidalwe nozakwethu ikakhulukazi uma wonke amarekhodi aqalwe ngaphakathi kwebanga elifanele imizamo yokubonga etshalwe ngaphambili yacatshangelwa !

Amathiphu Okusebenza nge-Decibel

Ama-decibel ayiyunithi yokulinganisa ebaluleke kakhulu lapho kukhiqizwa umsindo oqoshiwe. Ukufunda ukusebenzisa ama-decibel ngempumelelo lapho ukhiqiza umsindo orekhodiwe kuqinisekisa ukuthi okurekhodiwe kwakho kuzoba nekhwalithi yobuchwepheshe, nethembekile ephezulu. Lesi sigaba sizoxoxa ngezisekelo zama-decibel futhi sinikeze namathiphu okuthi angawasebenzisa kanjani lapho ukhiqiza umsindo oqoshiwe.

Ungawaqapha kanjani kahle amazinga e-decibel

Ukuqapha amazinga e-decibel ngendlela efanele kuyisici esibaluleke kakhulu sokukhiqizwa komsindo. Ngamazinga angalungile noma eqile, umsindo endaweni ethile ungaba yingozi futhi, ngokuhamba kwesikhathi, ulimaze unomphela ukuzwa kwakho. Ngakho-ke, kubalulekile ukunemba nokungaguquguquki lapho uqapha amazinga e-decibel.

Indlebe yomuntu ingakwazi ukucosha amazinga omsindo ukusuka ku-0 dB kuya ku-140 dB; kodwa-ke, izinga lokuphepha elinconyiwe ngamazinga Okuphepha Nokuphathwa Kwezempilo Emsebenzini (OSHA) lingu-85 dB esikhathini esingamahora ayisishiyagalombili. Njengoba i-amplitude yomsindo ishintsha kakhulu ngesakhiwo sezinto endleleni yayo, le mithetho yokuphepha izosebenza ngendlela ehlukile kuye ngendawo okuyo. Cabangela uma kukhona izindawo ezikhanyayo ezinama-engeli aqinile ezingahlehlisa amaza omsindo futhi zikhuphule amazinga omsindo ngaphezu kwalokho obuhlosile noma obukulindele.

Ukuze uqale ukuqapha ama-decibel ngendlela efanele futhi ngokuphepha kunoma yisiphi isimo, kufanele ube nonjiniyela we-acoustic ochwepheshile ukuthi eze futhi alinganisele ukufundwa kokusetha okuthile noma isimo sokusebenza ozama ukusikhiqizela noma ukurekhoda umsindo. Lokhu kuzokunikeza isilinganiso esinembile sokufundwa kwezinga lomsindo elibalulekile elingasebenza njengokulinganiswa kuso sonke isikhathi sokukhiqiza noma ubude besikhathi sokusebenza. Ukwengeza, ukusetha izilinganiso eziphezulu ezamukelekayo zomsindo lapho ukhiqiza umsindo ukuze ukhawulele imisindo enomsindo engazelelwe noma unwebe ukuchayeka emisindweni ephezulu kakhulu kungasiza futhi ukuqapha okukhiphayo ngokungaguquki ngaphandle kokufundwa ngokomzimba kwendawo ngayinye entsha lapho urekhoda okuhlangenwe nakho okubukhoma njengamakhonsathi noma ukukhiqizwa kobuciko obudlalwayo.

Ungawalungisa kanjani amazinga e-decibel ezimeni ezahlukahlukene

Kungakhathaliseki ukuthi urekhoda esitudiyo, uxuba endaweni ebukhoma, noma uvele uqiniseke ukuthi ama-headphone akho asezingeni elithokomele lokulalela, kunezimiso eziyisisekelo okufanele uzikhumbule lapho ulungisa amaleveli e-decibel.

Ama-decibel (dB) akala ukushuba komsindo kanye nomsindo ohlobene. Mayelana nokukhiqizwa komsindo, ama-decibel amelela ukuthi umsindo ophakeme ufika kaningi kangakanani ezindlebeni zakho. Umthetho ojwayelekile wesithupha ukuthi i-0 dB kufanele kube ivolumu yakho yokulalela ephezulu ngezizathu zokuphepha; Nokho leli zinga ngokusobala lingalungiswa kuye ngesimo.

Onjiniyela abaxuba ngokuvamile batusa amaleveli asebenzayo cishe ku- -6 dB phakathi ne-mixdown bese beletha yonke into ifike ku-0 dB lapho iba ngompetha. Lapho ufunda i-CD, ngokuvamile kungcono ukwenza iphutha ohlangothini lokuqapha futhi ungakhuphuli amazinga edlule - 1dB ngaphandle uma kunesidingo. Kuye ngokuthi ulalele kuphi—kungakhathaliseki ukuthi inkundla yangaphandle noma iklabhu encane—ungase udinge ukulungisa ububanzi be-decibel ngokufanele.

Lapho usebenza ngama-headphones, zama ukungeqi izinga eliphezulu lokuzwa okuphephile elinganqunywa ngokubonisana nabakha iziqondiso noma amazinga embonini njengemihlahlandlela ye-CALM Act ebeka umkhawulo kumazinga okudlala ku-85dB SPL noma ngaphansi -– okusho ukuthi angabi ngaphezu kwamahora angu-8 ukusetshenziswa okuqhubekayo ngakunye. usuku ngevolumu ephezulu ngaphansi kwalawa mazinga (ikhefu elinconyiwe kufanele lithathwe njalo ngehora). Uma uzithola usesimweni lapho umsindo omkhulu kunzima ukuwugwema njengama-nightclub namakhonsathi, cabanga ukusebenzisa izixhumi ezindlebeni njengesivikelo emonakalweni wesikhathi eside emisindweni ephezulu nephezulu.

Ukubona ububanzi obuhlukahlukene be-decibel ezimweni ezihlukene kungasiza ekuqinisekiseni ukuthi abalaleli banemizwa ejabulisayo nephephile ngaphandle kokuphazamisa umculo nokudala - ukubaqondisa kusukela ekulandeleleni kuya ekudlaleni ngokuqonda okuthuthukisiwe kwamaleveli okulinganisa ingxube yemisindo becabanga ngazo zombili izindlebe nezicaciso zemishini .

Isiphetho

Ama-decibel ayisilinganiso sokuqina komsindo, okuwenza abe isici esibalulekile ekukhiqizweni komsindo. Ngokuthola ukuqonda okungcono kwalolu hlelo lokulinganisa, abakhiqizi abakwazi nje ukudala izingxube zomsindo ezilinganiselwe kodwa futhi nemikhuba emihle yokuqapha impilo yesikhathi eside yezindlebe zabo. Kulesi sihloko, sihlole izinto eziyisisekelo zesikali se-decibel kanye nezinye zezinhlelo zokusebenza eziyinhloko ekukhiqizeni umsindo. Ngalolu lwazi, abakhiqizi bangaqinisekisa ukuthi umsindo wabo ulinganiselwe kahle futhi izindlebe zabo zihlala zivikelekile.

Isifinyezo se-decibel kanye nokusetshenziswa kwayo ekukhiqizeni umsindo

I-Decibel (dB) iyunithi yokulinganisa yokuqina komsindo, esetshenziselwa ukukala i-amplitude yegagasi lomsindo. I-decibel ikala isilinganiso esiphakathi kokucindezela komsindo okuhlobene nengcindezi yereferensi engaguquki. Isetshenziswa kakhulu kuma-acoustics nasekukhiqizweni komsindo, njengoba ilusizo ekukaleni nasekulinganiseni amazinga omsindo eduze nakude kumakrofoni nezinye izisetshenziswa zokuqopha.

Ama-decibel asetshenziselwa ukuchaza umthamo wemisindo ngoba ane-logarithmic esikhundleni somugqa; lokhu kusho ukuthi ukwenyuka kwamanani e-decibel kumelela ukukhuphuka okukhudlwana kokuqina komsindo. Umehluko wama-decibel angu-10 umele ukulinganiselwa okuphindwe kabili komsindo, kuyilapho ama-decibel angu-20 amelela ukwanda ngokuphindwe ka-10 kuleveli yokuqala. Ngakho-ke, lapho usebenza ngokukhiqizwa komsindo, kubalulekile ukujwayelana nokuthi ileveli ngayinye esikalini se-decibel imele ini.

Izinsimbi eziningi ze-acoustic ngeke zeqe ku-90 dB, kodwa izinsimbi eziningi ezikhulisiwe njengeziginci zikagesi zingadlula u-120 dB kuye ngamasethingi azo kanye nezinga lokukhulisa izwi. Ukusebenzisa lolu lwazi ukulungisa amaleveli ensimbi kungasiza ukugwema ukulimala kwezindlebe ngenxa yokuchayeka isikhathi eside kumazinga e-decibel aphezulu noma ngisho nokuhlanekezela okungaba khona okubangelwa ukusika izinga levolumu ephezulu kakhulu phakathi nokurekhoda noma ukuxuba.

Amathiphu okusebenza ngamaleveli e-decibel

Kungakhathaliseki ukuthi usebenza njengonjiniyela womsindo noma kustudiyo sokurekhoda komuntu siqu, kubalulekile ukuqonda ukubaluleka kwamaleveli e-decibel. Ama-decibel achaza ivolumu nokuqina, ngakho kufanele aphathwe ngokucophelela lapho kuxutshwa umsindo. Nawa amathiphu ambalwa angakusiza ukuthi uthole okuningi kumaleveli akho e-decibel:

1. Uma uqopha, gcina zonke izinsimbi ngevolumu elinganayo. Lokhu kuzosiza ukuvimbela ukungqubuzana futhi kuqinisekise ukuthi amafasitela awabambeki lapho eshintsha phakathi kwezigaba.

2. Naka izilungiselelo zokuminyanisa nezilinganiso, njengoba lokhu kungase kuthinte ivolumu iyonke kanye nobubanzi obuguqukayo lapho buchwepheshile.

3. Qaphela ukuthi amazinga e-dB aphezulu angabangela ukuhlanekezela okungajabulisi (ukuqoshwa) ukuthi kuzwakale kungxube nakumadivayisi adlalayo njengezipikha nama-headphone. Ukuze ugweme lo mphumela ongadingeki, khawula ileveli ye-dB ephezulu ibe -6dB ngazo zombili izinjongo zokuphatha kahle nezokusakaza.

4. I-mastering yithuba lakho lokugcina lokwenza izinguquko ngaphambi kokusabalalisa - kusebenzise ngokuhlakanipha! Thatha noma yikuphi ukunakekela okwengeziwe ngokulungisa amaza e-EQ ukuze usize ukudala ukuhlanganisa okulinganayo okungenakho ukungalingani kokubukeka phakathi kwamathuluzi/amazwi/imiphumela ehlukene kuthrekhi ngaphandle kokwehliswa kumkhawulo ophezulu we-dB (-6dB).

5. Qaphela ukuthi umsindo wakho uzosetshenziswa kuphi (isb. I-YouTube vs vinyl record) ukuze ulungise amazinga ngendlela efanele - ukwazi kahle kwe-YouTube ngokuvamile kudinga izinga eliphezulu eliphansi le-dB uma kuqhathaniswa nokuphusha umsindo kumarekhodi e-Vinyl!

Sawubona, nginguKim, umama kanye nomshisekeli we-stop-motion onesizinda ekudalweni kwemidiya nokuthuthukiswa kwewebhu. Nginothando olukhulu lokudweba nokugqwayiza, futhi manje sengingena ngekhanda emhlabeni onyakazayo. Ngebhulogi yami, ngabelana ngezifundo zami nani bafana.