Ukuqonda enye yeyona nto ibaluleke kakhulu kwiNkquthela yokuCoca
Ukuba kukho enye inkcazo yesithethi eselungele ukukhangela, kukulinganisa ukuqonda. Ubuzwe buxelela indlela oza kuvakala ngayo kwisithethi ngesibonelelo samandla. Akunakukuchaphazela kuphela ukhetho lwakho lwesithethi, kodwa ukhethe ukwamkeli we-stereo / amplifier . Ubuninzi bobuchule kwiintetho zeBluetooth , ii-soundbars, kunye ne-subwoofers, nangona ezo mveliso zingabhale uluhlu.
Yiyiphi intsingiselo yobuzwe
Uvakalelo lweSomlomo luzichaza xa uziqonda ukuba lilinganiswa njani. Qala ngokubeka imakrofoni okanye i-SPL (izinga leengcinezelo zomsindo) imitha enye imitha ukusuka ngaphambili kwisithethi. Emva koko, qhagamshela isikhulisi kwisithethi uze udlale uphawu; uya kufuna ukulungelelanisa kwinqanaba ukwenzela ukuba i-amplifier idibanise i- watt kuphela yamandla kwisithethi . Ngoku gcina iziphumo, ulinganiswe kwi-decibels (dB), kwimakrofoni okanye kwi-SPL imitha. Nguwo uvelwano lwesithethi.
Ukuphakanyiswa kwesilinganisi sokuphakamisa ukuqonda kwesikhulumi, ngokugqithiseleyo kuya kudlala kunye nemali ethile. Ngokomzekelo, ezinye izithethi zinobuzwe obuninzi malunga no-81 dB okanye njalo. Oku kuthetha ngelinye lamanzi, baya kuhambisa intlawulo yokulinganisela. Ufuna 84 dB? Uya kufuna ezimbini iil watts - oku kungenxa yokuba yonke eyongezelelweyo ye-3 dB yomsindo idinga kabini amandla. Ufuna ukubetha kakuhle kunye nezwi eliphezulu 102 dB ephakamileyo kwinkqubo yakho yaseshashalazini? Uzakufuna ama-watts angu-128.
Imilinganiselo yobuzwe obuyi-88 dB malunga nomyinge. Into engaphantsi kwe-84 dB ithathwa njengengqondo. Ukuqonda u-92 dB okanye ngaphezulu kulungile kwaye kufuneka kufuneke.
Ngaba Ukuphumelela Nokuziqonda Ngokufanayo?
Ewe kunye no. Uyakubona ngokuthe rhoqo imigaqo "uzwela" kunye "nokusebenza kakuhle" esetyenziswa ngokungafaniyo kwi-audio, okulungile. Uninzi lwabantu lufanele lukwazi ukuba uthini xa uthe isithethi sinokuthi "u-89 dB usebenza kakuhle." Ngokwenene, ubuchule kunye novelwano ziyahluka, nangona zichaza into efanayo. Ukucaciswa kwezinto zobungqina kungaguqukela kwiinkcukacha zokusebenza kunye nokuchaneka.
Usebenze yilezi zikhulu zamandla eziya kwisithethi eguqulwa ngokutsha. Eli xabiso lisoloko lingaphantsi kwepesenti enye, ekwaxelela ukuba uninzi lwamandla athunyelwe kwisithethi luphela njengotshani kwaye aluzwanga.
Indlela Imilinganiselo Yokwenza Ubungakanani Ubunzima
Akunqabile ukuba umenzi wesithethi achaze ngokucacileyo ukuba babala njani ububele. Uninzi lukhetha ukukuxelela oko usuyazi ngaphambili; umlinganiselo wenziwa ngenye iritha kumgama wamitha omnye. Ngelishwa, imilinganiselo yentswelo ingenziwa ngeendlela ezahlukeneyo.
Unokulinganisa ubuzwe kunye nentsimbi yepinki. Nangona kunjalo, isandi se-pinki sitshintsha kwinqanaba, oku kuthetha ukuba akuyona into echanekileyo ngaphandle kokuba unomitha owenza umyinge ngaphezu kwemizuzwana embalwa. Ingxolo ye-pink ayivumeli kakhulu indlela yokunciphisa umlinganiselo othile kwiqela elithile lomsindo. Ngokomzekelo, isithethi esineziseko zayo eziphakanyiswe ngu-+10 dB iya kubonisa ukulinganisa okuphezulu, kodwa "ngokukopela" ngenxa yazo zonke izitya ezingabonakaliyo. Omnye unokufaka izicelo zokulinganisa ii-curves - ezifana no-A-weighing, ejolise kwizandi eziphakathi kwe-500 Hz kunye ne-10 kHz-ukuya kwi-SPL imitha ukucoca ukugqithisa kwamaxesha. Kodwa le yongeza umsebenzi.
Abaninzi banqwenela ukuvavanya uvelwano ngokuthatha imilinganiselo yeempendulo zempendulo zee- frequency zezivakalisi kwiqondo elisezantsi. Emva koko uya kuthi umyinge wonke amanqaku edatha okuphendula phakathi kuka-300 Hz no-3,000 iHz. Le ndlela ilungile kakhulu ekuhambiseni iziphumo eziphindayo ngokuchaneka ukuya kwi-0.1 dB.
Kodwa ke kukho umbuzo wokuba ubungakanani bemvelo buyenziwa ngokwenza okanye kwindawo. Umlinganiselo we-anechoic ucinga kuphela isandi esivela sisithethi kwaye siyayigcina imiqondiso evela kwezinye izinto. Le ndlela yintando, kuba iyaphindaphinda kwaye ichanekile. Nangona kunjalo, ukulinganisa kwamagumbi kukunikezela "umfanekiso wehlabathi wangempela" wamanqanaba omsindo aphuma kwisithethi. Kodwa ukulinganisa kwamagumbi ngokuqhelekileyo kukunika i-3 dB eyongezelelweyo okanye kunjalo. Ngokudabukisayo, abaninzi abakhiqizi abanakukuxelela ukuba iimpawu zabo zentlupheko yi-anechoic okanye kwi-gumbi-imeko efanelekileyo kakhulu xa bakunika zombini ukuze ukwazi ukuzibona.
Yintoni oku kufuneka iyenze nge-Soundbars kunye neBluetooth Speakers?
Ngaba uqaphele ukuba izivakalisi eziphambili ngaphakathi, ezi-subwoofers, ii-soundbars kunye neBluetooth speakers , phantse zingabonakali uvelwano lwabo? Ezi zithethi zibhekwa njenge "inkqubo ezivaliweyo," oko kuthetha ukuba uveliseko (okanye ukulinganiswa kwamandla) alunancedo nangomthamo opheleleyo onokwenziwa yunithi.
Kuya kuba mnandi ukubona ukulinganiswa kobuzwe besikhombisi kubaqhubi besithethi asetyenziswa kule mveliso. Abakhiqizi banqabile ukuba bayacacise ukucacisa amandla abaphuculisi bangaphakathi, behlala befaka amanani anamandla afana ne-300 W kwi- barbar engabibizi okanye i-1,000 W ye-home-in-box-system system.
Kodwa izilinganiso zamandla ezi mveliso ziphantse zichaze ngezizathu ezintathu:
- Umenzi akakuze akuxelele ukuba amandla alinganiswayo (inqanaba lokuphambukisa, impepha yokulayisha, njl njl.) Okanye ukuba ukunikezelwa kwamandla kwunithi kungenako ukuhambisa loo juice eninzi.
- Isilinganisi samandla okukhulisa asikuxeleli ukuba iinqununu ziza kudlala kangakanani ngaphandle kokuba uyazi ubuchule besiphathi besithethi.
- Nangona i-amp amp ibeka amandla amakhulu, awuyazi ukuba abaqhubi besithethi bangakwazi ukuphatha amandla. I-Soundbar kunye nabaqhubi besithethi seBluetooth badla ukuba bangabibizi.
Masithi ibha yomgca, elinganiswe kwi-250 W, ikhupha i-watts ezingama-30 ngomzila. Ukuba ibar yesixhobo isebenzisa abaqhubi abancinci - masihambe kunye no-82 dB ukuzwela-ke umphumo wezobugcisa uphathelene ne-97 dB. Leyo yayiza kuba yinto eyanelisayo kakhulu yokudlala imidlalo yamabhayisikobho! Kodwa kukho enye ingxaki; abo baqhubi banokukwazi ukusingatha iil watts ezili-10, eziza kunciphisa ibharari ye-soundbar malunga ne-92 dB. Kwaye akunjalo ngokukhawuleza kunene nantoni na ngaphezu kokubukela kweTV.
Ukuba ibar yesixhobo inabashayeli abavakalwe kwi-90 dB ukuzwela, ngoko kufuneka iilut ezisibhozo kuphela ukuze uzikhonze kwi-99 dB. Amatye ayisibhozo samandla akhulu kakhulu ukunyusa abaqhubi abadlulileyo.
Isigqibo esivakalayo sokufikelela apha kukuba iimveliso eziphuculiweyo ngaphakathi, ezifana nezandi zee-soundbars, izithethi zeBluetooth, kunye ne-subwoofers, kufuneka zilinganiswe ngumthamo opheleleyo onokuzihlangula kwaye kungekhona ngamanzi ahlanzekileyo. Isilinganiselo se-SPL kwibar ye-soundbar, isithethi seBluetooth, okanye i-subwoofer inentsingiselo kuba ikunika ingcamango yehlabathi yangempela yeyiphi imilinganiselo yamanani kwimveliso anokufezekisa. Ukulinganiswa kwamanzi akunjalo.
Nasi omnye umzekelo. I-Hsu Research ye-VTF-15H ye-subwoofer ine-350-watt amp kwaye ibeka i-123.2 dB SPL phakathi kwama-40 no-63 Hz. I-submoofer ye-Atmos yoMlilo we-Sunfire-into encinci kakhulu eyenziwa kakuhle-inama-1,400-watt amp, kodwa i-108.4 dB SPL phakathi kwe-40 no-63 iHz. Ngokucacileyo, ukutywala akuxeleli ibali apha. Akusondeli.
Ukususela ngo-2017, akukho mgangatho woshishino lwe-SPL izilinganiso zemveliso esebenzayo, nangona kukho izinto ezinengqiqo. Enye indlela yokwenza ngayo ukuguqula umkhiqizo ukuya kumgangatho ophezulu onokuwufeza ngaphambi kokuba ukuphazamiseka kube yinto engathandekiyo (ezininzi, ukuba akuninzi, izandi zee-soundb and izikhulumi zeBluetooth zingasebenzisa umthamo opheleleyo ngaphandle kokuphazamiseka okungaqondakaliyo), ngoko ulinganise umphumo kwimitha enye usebenzisa isalathisi somsindo we-pink d -10. Kakade, ukugqiba ukuba yeyiphi inqanaba lokuphazamiseka okuchasayo kukuthobela; umenzi angasebenzisa imilinganiselo yokuphambukisa yangempela , ethathwe kwisiphathi sesithethi, endaweni yoko.
Kucacile ukuba kukho imfuneko yepaneli yecandelo lokwenza imigaqo kunye nemilinganiselo yokulinganisa umkhiqizo osebenzayo weemveliso zomsindo. Oku kwenzekayo kunye nomgangatho we-CEA-2010 we-subwoofers. Ngenxa yaloo mgangatho, ngoku sinokufumana ingcamango enhle kakhulu yokuba i-subwoofer enkulu iya kudlala njani.
Ngaba Ububele Buhlala Bulungile?
Unokuzibuza ukuba kutheni abavelisi bengenzi izithethi ezinokuthi zithandeke kangako. Ngokuqhelekileyo ngenxa yokuba ukunciphisa kufuneka kwenziwe ukwenzela ukufezekisa amanqanaba athile ovakalelo. Ngokomzekelo, i-cone kwi-woofer / umqhubi unokuphuculwa ukuze kuphuculwe uvakalelo. Kodwa oku kubangela ukuba kubekho i-cone cone, eyayiza kubangela ukuphazamiseka ngokubanzi. Kwaye xa iinjineli zithethi zihamba malunga nokuphelisa iintlobo ezingafunekiyo kwimpendulo yesithethi, ngokuqhelekileyo kufuneka zinciphise ubuzwe. Ngoko yimiba enjengaleyo abavelisi kufuneka balinganise.
Kodwa kuzo zonke izinto ezicatshangelwayo, ukhetha isithethi kunye nesilinganiselo esiphakamileyo senqondo ngokuqhelekileyo kuyona khetho olungcono.Ungagqiba ukuhlawula ixesha elincinci, kodwa liya kufikelela ekupheleni.