Ukuqonda Omunye Wezinkinga Ezibaluleke Kakhulu Kodwa Isikhalazo Sokukhulumisana
Uma kunesicaciso esisodwa sesikhulumi esingafanele sibheke, kungukulinganisela kokuzwela. Ukuzwela kukutshela ukuthi uzothola ivolumu elingakanani kusuka kusikhulumi ngenani elinikeziwe lamandla. Akukona nje kuphela okungathinta ukukhetha kwakho kwesipikha, kodwa futhi ukhetha isamukeli / isilawuli se-stereo . Ukuzwela kuhambelana nezikhulumi ze-Bluetooth , amabhrabhisi, kanye nama-subwoofers, yize leyo mikhiqizo ingase ingabhale imininingwane.
Ukuthi ukuzwela kusho ukuthini
Ukuzwela komlomo kuyisichazamazwi uma uqonda ukuthi kulinganiswa kanjani. Qala ngokubeka imakrofoni yesilinganiso noma i-SPL (izinga lokucindezela komsindo) imitha elilodwa imitha elilodwa ukusuka ngaphambili kwesipikha. Bese uxhuma i-amplifier kwisipikha bese udlala isignali; uzofuna ukulungisa izinga ukuze i-amplifier inikeze i- watt eyodwa yamandla kuphela kusikhulumi . Manje gcina imiphumela, kulinganiswa ngama-decibels (dB), kumakrofoni noma ku-SPL imitha. Yilokho ukuzwela kwesipikha.
Ukuphakanyiswa kwesilinganiso sokuzwela kwesiphakamiso, kuzodlala ngokubanzi ngesilinganiso esithile samanzi. Isibonelo, ezinye izikhulumi zinokuzwela ezungeze 81 dB noma kunjalo. Lokhu kusho ngethamo elilodwa lamandla, bazoletha izinga elilalelayo lokulalela. Ufuna 84 dB? Uzodinga ama-watts amabili - lokhu kungenxa yokuthi zonke izidakamizwa ezingu-3 zeDB zedinga amandla kabili. Ufuna ukushaya amahle futhi uphakamise u-102 dB ohlelweni lwakho lwendawo yaseshashalazini? Uzodinga ama-watts angu-128.
Izinga lokuzwela kwe-88 dB liphathelene nesilinganiso. Noma yini engaphansi kuka-84 dB ibhekwa njengokungaboni kahle. Ukuzwela kwe-92 dB noma ngaphezulu kulungile kakhulu futhi kufanele kufuneke.
Ingabe Ukuphumelela Nokuzwela Okufanayo?
Yebo no cha. Ngokuvamile uzobona amagama athi "ukuzwela" kanye "nokusebenza kahle" asetshenziswe ngokungaxhunyiwe ku-alalelwayo, okulungile. Abantu abaningi kufanele bazi ukuthi usho ukuthini uma uthi isikhulumi sine "89 dB ukusebenza kahle." Ngokweqile, ukusebenza kahle nokuzwela kuhlukile, yize bechaza umqondo ofanayo. Ukucacisa ukuzwela kungaguqulelwa ekucaciseni ukusebenza kahle kanye nakancane.
Ukuphumelela yilapho inani lamandla lingena esikhulumi esiphenduka libe yinto ezwakalayo. Leli gama ngokuvamile lingaphansi kwephesenti elilodwa, elikutshela ukuthi amaningi wamandla athunyelwe kwisipikha aphela njengokushisa futhi angazwanga.
Ukuthi Izindlela Zokuzwela Kungazweleki Ziyakwazi Kanjani
Akuvamile ukuba umenzi wesiphakamisi achaze ngokuningiliziwe ukuthi balinganisa kanjani ukuzwela. Abaningi bathanda ukukutshela ukuthi usuvele wazi; ukulinganisa kwenziwa kwinye i-Watt emkhatsini wamamitha-nanye. Ngeshwa, izilinganiso zokuzwela zingenziwa ngezindlela ezihlukahlukene.
Ungakwazi ukukala ukuzwela ngomsindo we-pink. Noma kunjalo, umsindo we-pink uphenduka ezingeni, okusho ukuthi akuyona into eqondile ngaphandle kokuthi ube nemitha eyenza isilinganiso semikhakha eminingana. Umsindo we-pink awuvumeli kakhulu indlela yokunciphisa ukulinganisa eqenjini elithile lomsindo. Isibonelo, isikhulumi esinezinsizakalo zayo eziphakanyisiwe ngu-+10 dB sizobonisa isilinganiso sokuphakamisa ukuzwela, kodwa ngokuyisisekelo "ukukopela" ngenxa yazo zonke izinsika ezingadingeki. Omunye angasebenzisa i-curves yokulinganisa - njenge-A-ukulinganisa, okugxila emisindeni ephakathi kuka-500 Hz no-10 kHz - kumitha ye-SPL ukuhlunga ukugqithisa kwemvamisa. Kodwa lokho kwanezela umsebenzi.
Abaningi bakhetha ukuhlola ukuzwela ngokuthatha izilinganiso zokuphendula imvamisa ye -axis yezikhulumi ku-voltage esethi. Khona-ke uzobe ulinganisa yonke amaphuzu e-data ephendulayo phakathi kuka-300 Hz no-3,000 Hz. Le ndlela inhle kakhulu ekuhambiseni imiphumela ephindaphindiwe ngokunemba kuze kube ngu-0.1 dB.
Kodwa-ke kukhona umbuzo wokuthi ngabe ukulinganisa izilinganiso kwenziwa ngephutha noma ku-ekamelweni. Isilinganiso se-anechoic sibheka kuphela umsindo okhishwe yisiphakamiso futhi unganaki ukuboniswa kwezinye izinto. Lena inqubo ethandekayo, ngoba iyaphinda futhi inembile. Noma kunjalo, ukulinganisa kwamakamelo kukunika isithombe "somhlaba wangempela" samanothi womsindo avezwe yisikhulumi. Kodwa ukulinganisa kwamakamelo ngokuvamile kukunika i-3 dB eyengeziwe noma kunjalo. Ngokudabukisayo, iningi labakhiqizi abakutsheli ukuthi ukulinganisa kwabo kuyi-anechoic noma ku-ekamelweni-kungcono kakhulu uma kukunika kokubili ukuze uzibonele.
Yini Lokhu Okufanele Kuyenze Nge-Soundbars Nezikhulumi ze-Bluetooth?
Uke wazi ukuthi izikhulumi zangaphakathi eziphethwe ngaphakathi ngaphakathi, ama-subwoofers, ama-soundbars nezikhulumi ze-Bluetooth , cishe azilokothi zihlule ukuzwela kwabo? Lezi zikhulumi zibhekwa njenge "izinhlelo ezivaliwe," okusho ukuthi ukuzwela (noma ngisho nokukala kwamandla) akukhathaleki kangako umthamo ophelele okwaziwa yiyunithi.
Kungaba kuhle ukubona ukulinganisa izilinganiso zamashayeli wesipikha asetshenziswe kule mikhiqizo. Abakhiqizi abavame ukungabaza ukucacisa amandla okukhulisa kwangaphakathi, njalo befaka izinamba ezihlaba umxhwele ezinjenge-300 W ze- soundbar engabizi noma i- 1,000W ye-home-in-a-box system system.
Kodwa izilinganiso zamandla kule mikhiqizo cishe azibonakali ngezizathu ezintathu:
- Umkhiqizi cishe akazitsheli ukuthi amandla akho alinganiswa kanjani (izinga lokuphambene okuphezulu, impedance yokulayisha, njll) noma uma ukunikezwa kwamandla kagesi kungakhipha ngempela ijusi elinjalo.
- Isilinganiso samandla wokukhulisa asikutsheli ukuthi i-unit izodlala kanjani ngaphandle uma wazi nokwezwela kwabashayeli besipikha.
- Ngisho noma i-amp ikubeka amandla amaningi, awukwazi ukuthi abashayeli besiphakamitha bangakwazi ukuphatha amandla. I-Soundbar ne-Bluetooth isikhulumi abashayeli bavame ukuba okungabizi kakhulu.
Ake sithi ibha yamabhasi, elinganiswe ku-250 W, ibeka ama-watts angu-30 ngomzila ngamunye ukusetshenziswa kwangempela. Uma ibha yamathuluzi isebenzisa abashayeli abancinci kakhulu - ake sihambe no-82 dB ukuzwela - khona-ke ukukhishwa kwemfundiso kungu-97 dB. Lokho kungaba izinga elihle kakhulu lokudlala ne-movie action! Kodwa kunenkinga eyodwa kuphela; labo abashayeli bangase bakwazi ukusingatha ama-watts angu-10, okuyobekelwa umkhawulo wesigqoko somsindo cishe ngo-92 dB. Futhi lokho akukwakhulumi kakhulu kunoma yini engaphezu kokubuka kwe-TV evamile.
Uma ibha yomshini inezinshayeli ezilinganiselwe ukuzwela kwe-90 dB, bese udinga ama-watts ayisishiyagalombili kuphela ukuze uwadonsele ku-99 dB. Futhi amandla angamatshumi ayisishiyagalolunye amandla angeke akwazi ukuphoqa abashayeli ukuthi bangadluli.
Isiphetho esinengqondo sokufinyelela lapha ukuthi imikhiqizo yangaphakathi-okwenziwe ngcono, njengezandi zezingqimba, izikhulumi ze-Bluetooth, nama-subwoofers, kufanele zilinganiselwe ivolumu yenani elizokwazi ukulikhiphela hhayi nge-wattage ehlanzekile. Isilinganiso se-SPL kubha yamathuluzi, isikhulumi se-Bluetooth, noma i-subwoofer inenjongo ngoba ikunika umbono wangempela womhlaba wokuthi yiliphi izinga lemikhiqizo imikhiqizo engayifinyelela. Ukulinganiswa kwamanzi akusho.
Nasi esinye isibonelo. I-Hsu Research's VTF-15H ye-Subwoofer ine-350-watt amp futhi inika isilinganiso esingu-123.2 dB SPL phakathi kuka-40 no-63 Hz. I-subwoofer ye-Sunfire ye-Atmos - umklamo omncane kakhulu ongasebenzi kahle-unamamitha angu-1,400-watt, okwamanje uyingxenye engu-108.4 dB SPL phakathi kuka-40 no-63 Hz. Ngokusobala, ukuphuza amanzi akusho indaba lapha. Awufiki ngisho nakakhulu.
Kusukela ngo-2017, ayikho izinga lemikhiqizo yezingqikithi ze-SPL zemikhiqizo esebenzayo, nakuba kunemikhuba enengqondo. Enye indlela yokwenza ngayo ukuguqula umkhiqizo kufikele ezingeni eliphakeme elingakuthola ngaphambi kokuba ukuphazamiseka kube okungaqondakali (okuningi, uma kungenjalo, izingqikithi zomsindo kanye nezikhulumi ze-Bluetooth zingagijima ngokugcwele ngaphandle kokuphazamiseka okungaqondakali), bese ulinganisa umkhiqizo kumitha eyodwa usebenzisa isignali yomsindo we--10 dB. Yiqiniso, ukunquma ukuthi yikuphi ukuphazamiseka okungahambikiyo kuyisimo esizithobayo; umkhiqizi angasebenzisa izilinganiso zangempela zokuphazamisa , ethathwe kumshayeli wesipikha, kunalokho.
Ngokusobala, kunesidingo sephaneli lemboni ukudala imikhuba namazinga wokulinganisa ukukhishwa okusebenzayo kwemikhiqizo yomsindo. Yilokho okwenzeka ngezinga le-CEA-2010 le-subwoofers. Ngenxa yalowo mgangatho, manje singathola umqondo omuhle kakhulu wokuthi i-subwoofer enkulu izodlala kanjani ngempela.
Ingabe Ukuzwela Kuhlale Kuhle?
Ungase uzibuze ukuthi kungani abakhiqizi bengenzi izikhulumi ezibucayi ngangokunokwenzeka. Ngokuvamile ngoba ukuphoxeka kudinga ukwenziwa ukuze kufinyelelwe amazinga athile wokuzwela. Isibonelo, i-cone ku-woofer / umshayeli ingakhanyiswa ukuze kuthuthukiswe ukuzwela. Kodwa lokhu kubangelwa ukuthi kube nesiguli esivumelana nezimo, okuzokwenyusa ukuphazamiseka okukhulu. Futhi lapho onjiniyela bezikhulumi behamba ngokuqeda izintaba ezingadingeki esiphendulweni sesikhulumi, ngokuvamile bafanele banciphise ukuzwela. Ngakho-ke yizici ezinjengalezi abakhiqizi okufanele balinganise.
Kodwa ngazo zonke izinto ezicatshangwayo, ukhetha isikhulumi ngezinga eliphezulu lokuzwela uzwela ngokuvamile kuyisinqumo esingcono.Ungase ugcine ukukhokha kancane kancane, kodwa kuyokufanelekela ekugcineni.