Cishe uqaphele ukuthi kunezinhlobonhlobo eziningi zokukhwabanisa umsindo emakethe manje. Ngeshwa kumthengi, noma kunjalo, ukusebenza kwamasevisi okukhansela umsindo kuyahlukahluka kakhulu kusuka kumakhanda kuya kumakhalekhukhwini. Ezincane zazo ziphumelela kakhulu ungacabanga ukuthi kukhona okungalungile ngezindlebe zakho. Kodwa ezinye zazo zikhansela kuphela izitifiketi ezimbalwa zomsindo. Okubi nakakhulu, ezinye zazo zengeza umsindo ozwakalayo, ngakho-ke ngenkathi zinciphisa umsindo emazingeni aphansi, ziyakwandisa ngezikhathi eziphakeme.
Ngenhlanhla, umsebenzi wokulinganisa-ukukhansela umsebenzi kumakhanda ekhanda kunzima. Le nqubo ihilela ukukhiqiza umsindo we-pink ngokusebenzisa isethi yezikhulumi, bese ulinganisa ukuthi umsindo uthola kanjani umakhalekhukhwini ngezindlebe zakho.
01 ngo-04
Isinyathelo 1: Ukusetha i-Gear
Ingxenye yesilinganiso sayo idinga isofthiwe ye-spectrum analyzer eyisisekelo, njenge-True RTA; isikhombimsebenzisi se-microphone se-USB, njenge-Blue Microphones Icicle; kanye ne-simulator yezindlebe / isifuba njenge-GRAS 43AG engiyisebenzisayo, noma i-maniphone yesilinganiso sensimbi yekhanda njenge-GRAS KEMAR.
Ungabona isethaphu eyisisekelo esithombeni esingenhla. Lokho kungu-43AG ngakwesokunxele ngakwesokunxele, kufakwe uhlamvu lwama-raber olumele indlebe ejwayelekile yabantu abakhulu, okungukuthi, abesilisa baseMelika nabaseYurophu. Izinto zokuqala zitholakala ngezikhulu ezihlukahlukene nama-durometers ahlukene.
02 ka 04
Isinyathelo 2: Ukwenza Umsindo Omunye
Ukwenza izibonakaliso zokuhlola empeleni kunzima kakhulu uma uhamba yincwadi. IEC ye-IEC 60268-7 yokulinganisa ikhanda lokushaya ikhanda lichaza ukuthi umthombo ozwakalayo wokuhlolwa kufanele ube yizikhulumi eziyisishiyagalombili ezibekwe emagumbini egumbi, ngamunye edlala umthombo womsindo ongathandeki. Ukungahambisani kusho ukuthi isikhulumi ngasinye sithola isignali yaso yomsindo okungahleliwe, ngakho-ke awekho uphawu olufanayo.
Kulesi sibonelo, ukusetha kuhileleka izikhulumi ezimbili ze-Genelec HT205 eziphambene nendawo yehhovisi lami / ibhulogi, ngayinye idonsela ekhoneni ukuze ihlakaze kangcono umsindo wayo. Izikhulumi ezimbili zithola izimpawu zomsindo ezingahambisani. I-Sunfire TS-SJ8 subwoofer ekhoneni elilodwa kunezela ezinye izisekelo.
Ungabona ukusetha kumdwebo ongenhla. Izikwele ezincane ezigibela emagumbini yiGenelecs, isixuku esikhulu esingaphansi kwesokudla yi-sub-Sunfire, futhi isixuku esibomvu yiyona ibhenki yokuhlola lapho ngenza khona ukulinganisa.
03 ka 04
Isinyathelo 3: Ukugijima kokulinganisa
Ukuze uqale ukulinganisa, thola umsindo udlala, bese usetha izinga lomsindo ngakho lilinganisa i-75 dB eduze nomnyango we-canal yenkohliso ye-rubber yenkohlakalo engu-43AG, kulinganiswa usebenzisa imitha yezinga eliphansi le-sound pressure (SPL). Ukuthola isisekelo sokuthi umsindo ungaphandle kwendlebe yenkohliso ukuze ukwazi ukuyisebenzisa njengendlela yokubhekisela, chofoza ukhiye we-REF ku-TrueRTA. Lokhu kukunika umugqa wegrafu egrafini ngqo ku-75 dB. (Ungabona lokhu esithombeni esilandelayo.)
Okulandelayo, faka i-headphone kumsindisi / indlebe simulator. Ngaphansi kwesibhenki sami sokuhlola kufakwe izingodo zamatanda ukuze ibanga elivela epulini eliphakeme le-43AG kuze kube phansi kwezingodo zomuthi lifana nokulinganisa kwekhanda lami ezindlebeni zami. (Angikhumbuli kahle ukuthi ngangingubani, kodwa kungama-amayintshi angu-7.) Lokhu kugcina ingcindezi efanele yekhanda elibhekene ne-ear / cheek simulator.
Ngama-IEC 60268-7, ngabeka i-TrueRTA ye-1/3-octave i-smoothing futhi ngiyifaka phakathi kwamasampuli angu-12 ahlukile. Noma kunjalo, njenganoma yikuphi ukulinganisa okuhilela umsindo, akunakwenzeka ukuba uthole 100% eqondile ngoba umsindo ungakhethi.
04 ka 04
Isinyathelo 4: Ukuqinisekisa Umphumela
Leli shidi libonisa umphumela wesilinganiso sekhonophone ye-Phiaton Chord MC 530. Umzila we-cyan uyisisekelo, lokho okushiwo yindlebe / itekisi "ukuzwa" uma kungekho headphone lapho. Umzila oluhlaza kuwumphumela ngokukhishwa komsindo ukuguqulwa. Umshini obomvu ungumphumela wokukhishwa komsindo.
Qaphela ukuthi iziteshi zokukhansela umsindo unomthelela wazo oqinile phakathi kuka-70 no-500 Hz. Lokhu kuyinto evamile, futhi kuyinto enhle ngoba yilona ibhande lapho umsindo we-droning engaphakathi kwekhamera yezindiza ehlala khona. Qaphela futhi ukuthi iziteshi zokukhansela umsindo zingakwazi ukwandisa izinga lomsindo emazingeni aphezulu, njengoba sibona kuleli shidi lapho umsindo uphezulu phakathi kuka-1 no-2.5 kHz ngokukhansela komsindo.
Kodwa ukuhlolwa akuqediwe kuze kuqinisekiswe ngendlebe. Ukwenza lokhu, ngisebenzisa uhlelo lwami lwe-stereo ukuze ngidlale ukurekhoda engenziwe ngomsindo ngaphakathi kwekhamera yezindiza. Ngenza ukurekhoda kwami kwesinye sezihlalo zangemuva kwe-MD-80 jet, enye yezindala ezindala kakhulu futhi ezinomsindo kakhulu okwamanje enkonzweni yokuhweba e-US Ngabe ngibona-noma ngizwa-ukuthi kuhle kangakanani umsebenzi umakhalekhukhwini ongakwenza ukunciphisa hhayi kuphela umsindo we-jet, kodwa umsindo wezimemezelo nabanye abagibeli.
Ngikwenza lokhu isilinganiso iminyaka embalwa manje, futhi ukulungiswa phakathi kokulinganisa nokusebenza komsindo okwenziwe ngomsindo engiye ngaba nakho ezindizeni nasebhasini kuhle kakhulu ngezindlebe ze-ear-ear and ear-ear. Ukulinganisa akuyona into enhle nge-headphone yezindlebe ngoba kulabo ngokuvamile ngisusa isicathulo sesifuba kusukela kumfanisi bese ngisebenzisa ikhamera ye-GRAS RA0045 yokulinganisa. Ngakho-ke, omunye umphumela wokubonakala (ukuvinjelwa) wezinhlobonhlobo ezinkulu ezisezindlebeni zilahlekile. Kodwa kuseyisibonakaliso esihle kakhulu sokuthi uhlelo lokukhansela umsindo lusebenza kanjani.
Qaphela ukuthi njengalezo zonke izilinganiso zomsindo, lona akaphelele. Nakuba i- subwoofer ibeka kude kakhulu ngangokunokwenzeka ebhentshini lokuhlola, ibhentshini lokuhlola lifakwa ezinyaweni ezizizwayo, futhi isimanga / isifuba simulator inezinyawo zamabhola ezinqabile, okungenani ukuduma kwesibhakabhaka okungena ngqo kumakrofoni ngokuqhutshwa komzimba. Ngizame ukuthuthukisa lokhu ngokungeza ukufaka ngaphezulu kwezinto ngaphansi kwe-simulator, kodwa akusizi ngalutho, mhlawumbe ngenxa yokuthi ukudlidliza emoyeni kubuye kube nomsindo emzimbeni we-simulator.