Mu dongosolo la mawu, kutenthedwa kwa sipika kumakhala kovuta kwambiri kwa ogwiritsa ntchito mawu, kaya pamalo a KTV, kapena pamalo oimikapo magalimoto kapena pamalo ena. Nthawi zambiri, lingaliro lofala kwambiri ndilakuti ngati voliyumu ya amplifier yakwera kwambiri, zimakhala zosavuta kutenthedwa sipika. Ndipotu, pali zifukwa zambiri zomwe sipika imatenthedwa.
1. Kapangidwe kosayenera kaokamba nkhanindima amplifiers amphamvu
Anzanu ambiri omwe amasewerera mawu angaganize kuti mphamvu yotulutsa ya amplifier yamagetsi ndi yayikulu kwambiri, zomwe zimapangitsa kuti tweeter iwonongeke. Ndipotu, sichoncho. Pazochitika zaukadaulo, wokamba nkhani nthawi zambiri amatha kupirira kugwedezeka kwakukulu kwa ma signali kawiri kuposa mphamvu yovomelezedwa, ndipo amatha kupirira katatu nthawi yomweyo. Kugwedezeka kwakukulu kuwirikiza kawiri kuposa mphamvu yovomelezedwa popanda vuto. Chifukwa chake, nthawi zambiri tweeter imatenthedwa ndi mphamvu yayikulu ya amplifier yamagetsi, osati chifukwa cha kugwedezeka kwamphamvu kosayembekezereka kapena kulira kwa maikolofoni kwa nthawi yayitali.
Ngati chizindikiro sichinasinthidwe, mphamvu yamagetsi ya chizindikiro chodzaza ndi mphamvu yaifupi imagwera pa woofer ndi mphamvu yayikulu, zomwe sizimapitirira mphamvu yaifupi ya sipika. Nthawi zambiri, sizingayambitse kupatuka kwa kugawa kwa mphamvu ya sipika ndikuwononga gawo la sipika. Chifukwa chake, pansi pa mikhalidwe yogwiritsidwa ntchito bwino, mphamvu yotulutsa yovotera ya amplifier yamagetsi iyenera kukhala yowirikiza kawiri mphamvu yovotera ya sipika, kuti zitsimikizire kuti amplifier yamagetsi siyimayambitsa kusokonezeka mphamvu ya sipika ikagwiritsidwa ntchito.
2. Kugwiritsa ntchito molakwika kugawa ma frequency
Kugwiritsa ntchito molakwika malo ogawa ma frequency a input terminal pamene kugawa ma frequency akunja kukugwiritsidwa ntchito, kapena kuchuluka kwa ma frequency operating range a speaker ndi chifukwa cha kuwonongeka kwa tweeter. Pogwiritsa ntchito frequency divider, malo ogawa ma frequency ayenera kusankhidwa motsatira kuchuluka kwa ma frequency operating a speaker omwe aperekedwa ndi wopanga. Ngati crossover point ya tweeter yasankhidwa kukhala yotsika ndipo mphamvu yake ndi yolemera kwambiri, n'zosavuta kuwotcha tweeter.
3. Kusintha kosayenera kwa equalizer
Kusintha kwa equalizer ndikofunikiranso. Equalizer ya ma frequency imakonzedwa kuti ikwaniritse zolakwika zosiyanasiyana za malo omveka mkati ndi ma frequency osafanana a okamba, ndipo iyenera kusinthidwa ndi chowunikira cha spectrum kapena zida zina. Makhalidwe a ma frequency otumizira pambuyo pokonza ma debugging ayenera kukhala athyathyathya mkati mwa mtunda winawake. Ma tuner ambiri omwe alibe chidziwitso cha mawu amachita kusintha momwe akufunira, ndipo ngakhale anthu ambiri amakweza ma frequency apamwamba komanso ma frequency otsika a equalizer kwambiri, ndikupanga mawonekedwe a "V". Ngati ma frequency awa awonjezeka ndi oposa 10dB poyerekeza ndi ma frequency apakati (kuchuluka kwa kusintha kwa equalizer nthawi zambiri ndi 12dB), sikuti kusokonekera kwa gawo komwe kumachitika ndi equalizer kudzasintha kwambiri phokoso la nyimbo, komanso kumayambitsa mosavuta treble unit ya audio Burned out, mtundu uwu wa vuto ndi womwenso umayambitsa ma speaker otopa.
- Kusintha kwa voliyumu
Ogwiritsa ntchito ambiri amaika attenuator ya amplifier yamagetsi pambuyo pa gawo pa -6dB, -10dB, ndiko kuti, 70%--80% ya knob ya voliyumu, kapena ngakhale malo abwinobwino, ndikuwonjezera input ya siteji yakutsogolo kuti akwaniritse voliyumu yoyenera. Akuganiza kuti wokamba nkhani ndi wotetezeka ngati pali malire mu amplifier yamagetsi. Ndipotu, izi ndizolakwikanso. Knob ya attenuation ya amplifier yamagetsi imachepetsa chizindikiro cholowera. Ngati input ya amplifier yamagetsi yachepetsedwa ndi 6dB, zikutanthauza kuti kuti ikhalebe voliyumu yomweyo, siteji yakutsogolo iyenera kutulutsa 6dB yowonjezera, voliyumu iyenera kuwirikiza kawiri, ndipo mutu wapamwamba wa dynamic wa input, udzadulidwa pakati. Panthawiyi, ngati pali chizindikiro chachikulu mwadzidzidzi, zotulutsa zidzadzaza 6dB koyambirira, ndipo mawonekedwe odulidwa adzawonekera. Ngakhale amplifier yamagetsi si yodzaza, input ndi mawonekedwe odulidwa, gawo la treble ndi lolemera kwambiri, osati treble yokha yomwe yasokonekera, komanso tweeter ikhozanso kuyaka.
Tikagwiritsa ntchito maikolofoni, ngati maikolofoni ili pafupi kwambiri ndi sipika kapena ikuyang'ana sipika, ndipo voliyumu ya amplifier yamphamvu yayatsidwa mokweza, zimakhala zosavuta kupanga mawu omveka bwino ndikuyambitsa kulira, zomwe zimapangitsa kuti tweeter izime. Chifukwa chakuti zizindikiro zambiri zapakati ndi treble zimatumizidwa kuchokera ku unit ya treble mutadutsa mu frequency divider, chizindikiro champhamvu ichi chimadutsa mu unit ya treble ndi coil yopyapyala kwambiri, ndikupanga mphamvu yayikulu ya instantaneous current, zomwe zimapangitsa kutentha kwakukulu nthawi yomweyo, ndikuwomba waya wa voice coil, tweeter idasweka itapanga kulira kwa "woo".
Njira yolondola ndikugwiritsa ntchito maikolofoni yomwe siili pafupi kapena moyang'anizana ndi chipangizo cholankhulira, ndipo mphamvu ya amplifier yamagetsi iyenera kuwonjezeredwa pang'onopang'ono kuchokera pa yaying'ono mpaka yayikulu.cholankhulira mawuZingawonongeke ngati voliyumu ili yokwera kwambiri, koma vuto lalikulu ndilakuti mphamvu ya amplifier yamagetsi si yokwanira ndipo cholankhulira chimayatsidwa mwamphamvu, kotero kuti kutulutsa kwa amplifier yamagetsi sikutanthauza kuti ndi mafunde wamba, koma chizindikiro chokhala ndi zinthu zina zosakwanira, zomwe zidzatentha cholankhuliracho.
Nthawi yotumizira: Novembala-14-2022