Kodi Kutanthauzira Chisamaliro Chikutanthauzanji ndi Chifukwa Chiyani Ndikofunika?

Kumvetsetsa Mmodzi mwa Ofunika Kwambiri Ngakhale Wosokoneza Wokamba Nkhani

Ngati pali ndondomeko imodzi yoyankhulira yomwe ikuyenera kuyang'anitsitsa, ndiyeso yachangu. Kukhudzidwa kumakufotokozerani kuchuluka kwa mawu omwe mungapeze kuchokera kwa wokamba nkhani ndi kuchuluka kwa mphamvu. Sizingatheke kokha kumakhudza wosankha wanu, koma komanso kusankha chojambulira stereo / amplifier . Kutengeka kumaphatikizapo okamba ma Bluetooth , mabasiketi, ndi subwoofers, ngakhale kuti mankhwalawa sangathe kulemba ndondomekoyo.

Kodi Chisamaliro Chikutanthauza Chiyani?

Wokamba kulankhula ndikutanthauzira pokhapokha mutamvetsa momwe akuyendera. Yambani mwa kuika maikolofoni a muyeso kapena SPL (mlingo wa mpweya woyezera) mita imodzi imodzi kutali ndi kutsogolo kwa wolankhula. Kenaka gwirizanitsani wopukutira kwa wokamba nkhaniyo ndi kusewera chizindikiro; mufuna kusintha ndondomeko kuti amplifier ipereke mphamvu imodzi yokha kwa wolankhula . Tsopano yang'anani zotsatira, kuyeza mu decibels (dB), pa maikolofoni kapena SPL mita. Ndiko kukhudzidwa kwa wokamba nkhani.

Kutsika kwa msinkhu wokhudzidwa wa wokamba nkhani, mofulumira kumasewera ndi madzi enaake. Mwachitsanzo, okamba nkhani ena ali ndi chidwi chozungulira 81 dB kapena choncho. Izi zikutanthawuza ndi mphamvu imodzi yamagetsi, iwo amapereka mlingo womvetsera wokwanira. Mukufuna 84 dB? Mufunikira ma watti awiri - izi ndi chifukwa chakuti zina zonse 3 dB zavunikira zimafuna mphamvu ziwiri. Mukufuna kugunda mokoma ndi mokweza 102 dB pamwamba panu Mufunikira ma watt 128.

Kuyeza kwa mphamvu za 88 dB ndi pafupifupi pafupifupi. Chilichonse pansi pa 84 dB chimawoneka kuti sichimvetsetsa. Kukhudzidwa kwa 92 dB kapena apamwamba ndi zabwino kwambiri ndipo ziyenera kufufuzidwa.

Kodi Kuchita Zokwanira ndi Kukhudzidwa Ndizofanana?

Inde ndi ayi. Nthawi zambiri mumawona mawu akuti "kutengeka" ndi "kugwiritsira ntchito" zomwe zimagwiritsidwa ntchito mosasinthasintha m'mawu, zomwe zili bwino. Anthu ambiri ayenera kudziwa zomwe mukutanthauza pamene mukunena kuti wokamba nkhani ali ndi "89 dB bwino." Mwachidziwitso, kugwiritsira ntchito bwino ndi kukhudzidwa ndizosiyana, ngakhale kuti akufotokoza lingaliro lomwelo. Zomwe zimatchulidwa zingathe kutembenuzidwa kuti zidziwike bwino komanso zotsutsana.

Kuchita bwino ndi kuchuluka kwa mphamvu yopita ku wokamba nkhani yomwe imasinthika. Mtengo umenewu nthawi zambiri ndi wocheperapo gawo limodzi, zomwe zimakuuzani kuti mphamvu zambiri zotumizidwa kwa wokamba nkhani zimathera ngati kutentha osati kumveka.

Momwe Kuyeza Kwambiri Kungathetsere

Ndikochepa kuti wopanga wokamba nkhani afotokoze mwatsatanetsatane momwe amayeza mphamvu. Ambiri amakonda kukuuzani zomwe mukudziwa kale; chiyesocho chinachitidwa pamtunda umodzi pamtunda wamita imodzi. Mwatsoka, miyeso yokhudzidwa ikhoza kuchitidwa m'njira zosiyanasiyana.

Mukhoza kuyeza kutengeka ndi phokoso la pinki. Komabe, phokoso la pinki limasintha pamlingo, zomwe zikutanthauza kuti sizomwe zili zenizeni pokhapokha mutakhala ndi mita yomwe imachita masentimita pamasekondi angapo. Phokoso la phokoso limanenanso kuti sizingalole kuti njira yochepetsera mayesero ena amveke. Mwachitsanzo, wokamba nkhani yemwe ali ndi zida zake zowonjezereka ndi +10 dB amasonyeza chiwerengero chakumvetsetsa, koma kwenikweni ndi "kunyenga" chifukwa cha mabasi onse osayenera. Mmodzi akhoza kugwiritsa ntchito miyeso yolemera - monga kulemetsa, komwe kumayang'ana pakati pa 500 Hz ndi 10 kHz - ku mita ya SPL kuti iwononge maulendo opitirira. Koma izi zowonjezera ntchito.

Ambiri amakonda kusanthula kutengeka mwa kuyang'ana pafupipafupi mayendedwe a okamba pa magetsi. Kenaka mungasankhe mapepala onse owonetsera pakati pa 300 Hz ndi 3,000 Hz. Njirayi ndi yabwino kwambiri popereka zotsatira zobwerezabwereza molondola mpaka 0,1 dB.

Koma apo pali funso lakuti ngati zowonongeka zowonongeka zinachitidwa mwachidwi kapena mu chipinda. Chiyeso cha anechoic chimangomva phokoso lokhalo lochokera kwa wokamba nkhani ndi kunyalanyaza zizindikiro kuchokera ku zinthu zina. Iyi ndi njira yokondedwa, popeza ndi yobwereza komanso yeniyeni. Komabe, muyeso ya chipinda ndikukupatsani chithunzi cha "dziko lenileni" la masankhulidwe omveka kuchokera kwa wokamba nkhani. Koma muyeso ya chipinda mumakupatsani inu owonjezera 3 dB kapena choncho. N'zomvetsa chisoni kuti ambiri opanga samakuwuzani ngati kuyesa kwawo ndi anechoic kapena mu-chipinda - vuto ndilo pamene akukupatsani zonse kuti mutha kudziwonera nokha.

Kodi Izi Zili ndi Chiyani ndi Soundbars ndi Olankhula Bluetooth?

Zindikirani kuti okamba maofesi omwe amagwiritsidwa ntchito mkati mwawo, subwoofers, mazenera a mawu, ndi ma Bluetooth , salemba konse chidwi chawo? Oyankhula awa amatengedwa "mawonekedwe otsekedwa," kutanthauza kuti mphamvu (kapena ngakhale mphamvu ya mphamvu) ziribe kanthu mofanana ndi momwe mulingo wonsewo umagwirira ntchito.

Zingakhale zabwino kuona kuwona kwachisomo kwa madalaivala omwe amalankhula ntchito. Opanga kawirikawiri sakayikira kufotokozera mphamvu ya amplifiers mkati, nthawi zonse kutulutsa manambala ochititsa chidwi monga 300 W pa galasi lopanda mtengo kapena 1,000 W ya pakhomo.

Koma mphamvu zamakono kwazinthu izi ziri pafupi zopanda pake pa zifukwa zitatu:

  1. Wopanga pafupifupi samakuuzani momwe mphamvu imayesedwera (mlingo wapamwamba wopotoza, kutaya kwa katundu, etc.) kapena ngati magetsi a unit akhoza kwenikweni kupereka madzi ambiri.
  2. Mphamvu ya amplifier sikumakuwuzani momwe chipangizocho chidzasewera pokhapokha ngati mutadziwa zokhudzidwa ndi madalaivala oyankhula.
  3. Ngakhale amp amp akutulutsa mphamvu zambiri, simukudziwa kuti madalaivala omwe amalankhula angathe kuthana ndi mphamvu. Masewera a bwalo ndi ma Bluetooth oyendetsa galimoto amakonda kukhala osakwera mtengo.

Tiye tikulankhulana, terengwe pa 250 W, ndikukutulutsa 30 watts-pa-njira pakagwiritsidwe ntchito. Ngati galasi lamagetsi limagwiritsa ntchito madalaivala otsika mtengo - tiyeni tipite ndi 82 dB kumvetsa - ndiye zongopeka zogwirizana ndi 97 dB. Izi zikanakhala zokhutiritsa zokongola za masewera ndi mafilimu amachitidwe! Koma pali vuto limodzi; madalaivala awo akhoza kuthana ndi ma watt 10 okha, omwe angachepetse bwalo lofikira pafupifupi 92 dB. Ndipo sikumveka mokweza kwambiri kuposa china chilichonse chowonerera TV.

Ngati galasi lamakono ali ndi madalaivala omwe adavotera ku 90 dB mphamvu, ndiye kuti mumafunikira ma watti asanu ndi atatu okha kuti muwapatse 99 dB. Ndipo mphamvu zisanu ndi zisanu ndi zitatu sizingatheke kukakamiza oyendetsa galimoto kuti asalowe malire.

Cholinga chomveka chofikira apa ndi chakuti, mkati mwazinthu zamakono, monga zida zowonjezera, ma Bluetooth, ndi subwoofers, ziyenera kuwerengedwa ndi voliyumu yonse yomwe angathe kupulumutsa osati mwa madzi oyera. Kuwerenga kwa SPL pawombera, wokamba nkhani wa Bluetooth, kapena subwoofer ndi lothandiza chifukwa imakupatsani lingaliro lenileni la momwe bukuli limagwirira ntchito. Kulingalira kwa madzi sikutanthauza.

Nazi chitsanzo china. Hsu Research's VTF-15H subwoofer ili ndi 350-watt amp ndipo imaika 123.2 dB SPL pakati pa 40 ndi 63 Hz. Mpweya wotchedwa Sunfire's Atmos subwoofer - kamangidwe kakang'ono kochepa kwambiri - kamene kali ndi 1,400-watt amp, koma ndi 108.4 dB SPL pakati pa 40 ndi 63 Hz. Mwachiwonekere, kuyamwa sikukuuzani nkhani apa. Izo sizimayandikira nkomwe.

Pofika m'chaka cha 2017, palibe malonda a SPL omwe amawagwiritsira ntchito, ngakhale pali njira zowonongeka. Njira imodzi yochitira izo ndikutembenuza mankhwalawo mpaka pamlingo womwe ungathe kukwanitsa kusokoneza (zowonjezera, ambirimbiri, mabotolo ndi ma Bluetooth akutha kuyendetsa mokwanira popanda kupotoka kosayenera), ndiye muyese zotsatira zake pamtunda umodzi pogwiritsa ntchito -10 dB chizindikiro cha phokoso la pink. Inde, kusankha chisokonezo ndi cholakwika; wopanga angagwiritse ntchito miyeso yowonongeka kwenikweni , yotengedwa pa woyendetsa galimoto, m'malo mwake.

Mwachiwonekere, pali chosowa chachitukuko cha mafakitale kuti apange zizolowezi ndi miyezo yoyesera kuchuluka kwa ntchito yogulitsa. Izi ndi zomwe zinachitika ndi standard CEA-2010 ya subwoofers. Chifukwa cha muyezo umenewo, tsopano tikhoza kupeza lingaliro labwino kwambiri kuti subwoofer idzawombera.

Kodi Kukhala Wokoma Mtima Kumakhala Kosangalatsa NthaƔi Zonse?

Mungadabwe kuti chifukwa chiyani opanga sangapange zokamba zomwe ziri zovuta monga momwe zingathere. Ndizoti chifukwa chakuti kunyengerera kumafunika kupangidwira kuti tikwaniritse masewera ena. Mwachitsanzo, cone ya woofer / dalaivala ingayambe kuwunikira kuti imvetsetse mphamvu. Koma izi zimapangitsa kuti zikhale zosavuta kusintha, zomwe zingapangitse kusokonezeka kwakukulu. Ndipo pamene alangizi oyankhula amayenda kuthetsa mapiri omwe sakufunidwa pa yankho la wokamba nkhani, nthawi zambiri amayenera kuchepetsa kutengeka. Kotero ndizo zinthu monga izi zomwe opanga amayenera kuchita.

Koma ndi zinthu zonse zoganiziridwa, kusankha wokamba nkhani ndi chiwerengero chapamwamba chakumvetsetsa kawirikawiri ndi kusankha kopambana.Ukhoza kutha kumalipira pang'ono, koma kudzakhala koyenera pamapeto pake.