Umkhuzi wezwi wezindawo ezinkulu: Angakwenza kanjaniisikhulumi se-line array yobungcwetiukwenza umugqa wokugcina uzwakale kahle?

I-Acousticukuhlolwa kukhombisa ukuthiuhlelo lomugqa wobungcwetikungathuthukisa ukucaca kwenkulumo ezindaweni ezinkulu ngo-50%, futhi kunciphise umehluko ezingeni lokucindezela komsindo emgqeni ongemuva ube ngaphakathi kwama-decibel amathathu

Ezinkundleni zemidlalo, ezikhungweni zemihlangano, noma ezindaweni zangaphandle ezingamukela izinkulungwane zabantu, zendabukoizinhlelo zomsindobavame ukubhekana nenkinga exakile: izethameli zangaphambili ziyavala izindlebe, kuyilapho izethameli ezisemuva zizwa omiyane nezimpukane. Namuhla, izinhlelo zomsindo zochwepheshe ezisekelwe ekubalweni okunembile kwe-acoustic zishintsha ngokuphelele lesi simo. Ngokulawula okuhlakaniphile kweamaprosesakanye nokushayela okunembileama-amplifier ochwepheshe, abalaleli kuzo zonke izingxenye zendawo bangathola ulwazi olucacile noluhambisanayo lokuzwa.

Umklamo we-uhlelo lomsindo lochwephesheiqala ngokuhlaziywa kwesayensi kwezici ze-acoustic zendawo. Ochwepheshe basebenzisa ukulinganisaamamakrofoniukwenza ukuskena okuphelele kwe-acoustic kwendawo, kanyeiprosesaisungula imodeli ye-acoustic enezinhlangothi ezintathu ngokusekelwe kudatha eqoqwe. Le modeli ibala ngokunembile indlela yokusabalala, izici zokuzindla, kanye nomthetho wokunciphisa amaza omsindo endaweni, ihlinzeka ngesisekelo sesayensi sokuhlelwa kanye nokulungiswa kwe-engeli yesipikha se-line array. Umsebenzi wokubambisana weama-amplifier edijithalifuthiama-amplifier ochwepheshekuqinisekisa ukuthi umsindo ugcina amandla anele kanye nokucaca ngesikhathi sokudlulisa ibanga elide.

Inzuzo eyinhloko yesipikha se-line array isekulawuleni kwaso okuqondile okuhlukile. Ngokuhlela okunembile kwamayunithi amaningi esipikha, uhlelo luyakwazi ukuveza amandla wamagagasi omsindo ngendlela eqondile njengokukhanya kokukhanya kokusesha. Ngokungafani nokusabalala okuyisiyingi komthombo wamaphuzu wendabuko.izipikha, amagagasi ayisilinda akhiqizwa yisipikha se-line array anganciphisa ngempumelelo imfucuza yamandla esibhakabhakeni nasezindaweni ezingasebenzi kahle, futhi agxilise amandla amaningi omsindo endaweni yezilaleli. Lokhu kunembile.insimu yomsindoUkulawula kuvumela abalaleli ukuthi bafinyelele amazinga okucindezela komsindo kanye nokucaca kwenkulumo okufana nalawo asemugqeni ongaphambili, ngisho nasezihlalweni zangemuva eziqhele ngamamitha angamakhulu.

Iprosesa idlala indima "yonjiniyela we-acoustic ohlakaniphile" ohlelweni lomsindo lwendawo. Ayidingi nje kuphela ukuphatha umsebenzi wokubambisana wamaqembu amaningi omsindo we-line array, kodwa futhi ithuthukisa ngokuguquguqukayo ngokwendlela esetshenziswa ngayo indawo. Uma kutholwa ubuningi bezilaleli endaweni ethile, iprosesa izolungisa ngokuzenzakalelayo amandla okukhipha eyunithi ye-line array ehambisanayo; Uma ihlangabezana nezivunguvungu noma izinguquko zomswakama ezithinta ukusabalala komsindo, uhlelo luzokhokhela impendulo yemvamisa ngesikhathi sangempela.i-power sequencerkuqinisekisa ukuvumelanisa okuqinile kokuqalisa nokusebenza kwawo wonke amayunithi omsindo, kugwema ukuphazamiseka kwesigaba okubangelwa umehluko omncane wesikhathi, okubalulekile ekugcineni ukucaca ekudlulisweni komsindo okude.

Ukucushwa kwei-subwooferkudinga ukucatshangelwa okukhethekile ngezidingo ezikhethekile zezindawo ezinkulu. I-subwoofer eyodwa yendabuko ivame ukuba nenkinga ezindaweni ezinkulu, futhi izixazululo zesimanje zamukela ukwakheka kwe-subwoofer array esabalele. Ngokusebenzisa ukuphathwa okuhlakaniphile kweprosesa, iyunithi ngayinye ye-subwoofer ingasebenza ndawonye ukwakha ukumbozwa okufanayo kwemvamisa ephansi ngaphakathi kwendawo. Ama-amplifier ochwepheshe ahlinzeka ngokusekelwa kwamandla okuzinzile nokuningi kwale subwoofer, okuqinisekisa ukuthi imiphumela yemvamisa ephansi iyamangalisa futhi inamandla, ngaphandle kokufihla ukucaca kwenkulumo yemvamisa ephakathi kuya kwephezulu.

Ububanzi bokuzinza kanye nokumbozwaimakrofoni engenantambozibalulekile emicimbini emikhulu yezindawo.Amamakrofoni angenantambo aphathwa ngesandlaUkusebenzisa ubuchwepheshe bokwamukela ukuhlukahluka kwebhendi ye-UHF kungagcina ukuxhumana okuzinzile ezindaweni eziyinkimbinkimbi ze-electromagnetic. Umsebenzi wokuphatha imvamisa ezenzakalelayo yeziteshi eziningi ofakwe ohlelweni ungenzaimonithafuthi ugweme amabhendi okuphazamiseka ngesikhathi sangempela, uqinisekise ukuthi izwi lesipikha noma lomculi lingadluliselwa ngokucacile nangokuzinzile lapho lisuka kunoma yisiphi isikhundla endaweni. I-algorithm ehlakaniphile yeisivimbeli sempenduloingabona futhi icindezele ukukhala okungenzeka, ikakhulukazi inikeze isivikelo esengeziwe laphoisikhulumiisondela esipikheni se-array yomugqa oyinhloko.

Abahlakaniphileumxube womsindoinikeza indawo elula kakhulu engakaze ibonwe ngaphambiliumsindoukuphathwa. Abaqhubi bangalawula ngokuzenzakalelayo amapharamitha omsindo wendawo ngayinye futhi baqaphe isimo sokusebenza seyunithi ngayinye yomugqa ngesikhathi sangempela ngokusebenzisa isikhombikubona sesikrini sokuthinta. Izindlela zesigcawu ezilungiselelwe zivumela izinhlobo ezahlukene zemisebenzi ukuthi zishintshe izilungiselelo zomsindo ngokushesha: imodi yenkomfa yenza ngcono ukucaca kwezwi, imodi yokusebenza ithuthukisa ukuvezwa komculo, kanye nemodi yezemidlalo igxila ekuqondeni kokuphawula. I-mixer yomsindo ethuthukisiwe iphinde isekele umsebenzi wokubambisana wabaqhubi abaningi, iqinisekisa ukuxhumana okuphelele kwezixhumanisi zomsindo ezahlukahlukene emicimbini emikhulu.

Ngamafuphi, iumsindo wobungcwetiIsixazululo sezindawo ezinkulu siwubunjiniyela besistimu obuphelele obuhlanganisa ukukhomba okunembile komsindo we-line array, ukushayela okuzinzile kwama-amplifier ochwepheshe, ukuguqulwa okuphumelelayo kwama-amplifier edijithali, ukuphathwa okuhlakaniphile kwama-processor, ukuvumelanisa okunembile kwama-sequencers, ukumbozwa okufanayo kwe-subwoofer, ukudluliselwa okuthembekile kwama-microphone ahlakaniphile, kanye nokulawula okulula kwama-mixer omsindo. Lolu hlelo lwe-Voice Commander aluxazululi nje kuphela inkinga yokusabalala kwe-acoustic ezindaweni ezinkulu, kodwa futhi lufinyelela ukuvumelana kulo lonke ulwazi lokuzwa ngobuchwepheshe obuhlakaniphile. Luvumela wonke amalungu ezilaleli, kungakhathaliseki ukuthi akuphi endaweni, ukuthi ajabulele ngokulinganayo umsindo ocacile nohambayo, eqaphela ngempela indawo yokulalela efanele "yokulingana phambi komsindo". Emicimbini yanamuhla emikhulu eyanda njalo, ukutshala imali kulokhouhlelo lomsindo lwendawo yobungcwetiiyisiqinisekiso esihle kakhulu sekhwalithi yomcimbi kanye nolwazi lwezilaleli.