Nweba

Isho ukuthi isipikha siyakusekela yini okokufaka okuhambisanayo kweziteshi eziningi, noma ngabe kukhona okukhiphayo kokusebenza kwezipikha ezizungezile, noma ngabe sinomsebenzi wokufaka we-USB, njll. Inombolo yama-subwoofers angaxhunywa kuzipikha ezizungezile zangaphandle nazo indlela yokukala ukusebenza okunwetshiwe.Izikhulumi ezijwayelekile ze-multimedia ikakhulukazi zihlanganisa i-analog interface kanye ne-USB interface.Ezinye, ezifana ne-optical fibre interfaces kanye ne-interface yedijithali emisha, azivamile kakhulu.

Umphumela womsindo

Ubuchwepheshe obujwayelekile behadiwe ye-3D yemiphumela yomsindo buhlanganisa i-SRS, i-APX, i-Spatializer 3D, i-Q-SOUND, i-Virtaul Dolby ne-Ymersion.Nakuba benezindlela ezihlukene zokusebenzisa, zonke zingenza abantu bazizwe bezwakala imiphumela yenkundla yomsindo enezinhlangothi ezintathu.Ezokuqala ezintathu zivame kakhulu.Abasebenzisa i-Extended Stereo theory, okungukuthi ukucubungula isignali yomsindo ngesekhethi, ukuze umlaleli ezwe ukuthi isiqondiso sesithombe somsindo sinwetshwa ngaphandle kwezikhulumi ezimbili, ukuze kwandiswe isithombe somsindo futhi abantu banomqondo wesikhala kanye nobukhulu obuthathu, okuholela kumphumela obanzi we-stereo.Ngaphezu kwalokho, kukhona ubuchwepheshe obubili bokuthuthukisa umsindo: ubuchwepheshe be-servo obusebenzayo be-electromechanical (ikakhulukazi kusetshenziswa isimiso se-Helmholtz resonance), ubuchwepheshe besistimu yokukhiqiza umsindo ye-BBE high-definition plateau kanye nobuchwepheshe “befeksi yesigaba,” obuphinde bube nomthelela othile ekuthuthukiseni ikhwalithi yomsindo.Ezikhulumini ze-multimedia, ubuchwepheshe be-SRS kanye ne-BBE kulula ukubusebenzisa futhi bunemiphumela emihle, engathuthukisa ngempumelelo ukusebenza kwezikhulumi.

Ithoni

Isho isignali enobude beza beza obuthile futhi ngokuvamile obuzinzile (iphimbo), ukukhuluma ngokuhlanganyela, ithoni yomsindo.Ngokuyinhloko kuncike kubude begagasi.Ngomsindo onobude obufushane beza, indlebe yomuntu iphendula ngezwi eliphakeme, kuyilapho ngomsindo onobude obude, indlebe yomuntu iphendula ngezwi eliphansi.Ukushintsha kwephimbo nge-wavelength empeleni kuyi-logarithmic.Izinsimbi ezihlukene zidlala inothi elifanayo, nakuba i-timbre ihlukile, kodwa iphimbo lazo liyefana, okungukuthi, igagasi eliyisisekelo lomsindo liyafana.

I-Timbre

Umbono wekhwalithi yomsindo futhi iyikhwalithi yesici yomsindo owodwa owuhlukanisa komunye.Uma izinsimbi ezahlukene zidlala ithoni efanayo, i-timbre yazo ingahluka kakhulu.Lokhu kungenxa yokuthi amagagasi abo ayisisekelo ayafana, kodwa izingxenye ze-harmonic zihluke kakhulu.Ngakho-ke, i-timbre ayincikile kuphela kumagagasi ayisisekelo, kodwa futhi ihlobene eduze nama-harmonics ayingxenye ebalulekile yegagasi eliyisisekelo, okwenza insimbi ngayinye yomculo nomuntu ngamunye abe ne-timbre ehlukile, kodwa incazelo yangempela incike kakhulu. futhi angase azizwe engaqondakali.

Amandla

Isilinganiso sokunamandla nokubuthakathaka emsindweni, esivezwa nge-dB.Isibonelo, ibhendi inobubanzi obuguqukayo obungu-90dB, okusho ukuthi ingxenye ebuthaka kakhulu inamandla amancane angu-90dB kunengxenye enomsindo kakhulu.I-Dynamic range isilinganiso samandla futhi ayihlanganise lutho nezinga eliphelele lomsindo.Njengoba kushiwo ngaphambili, uhla oluguquguqukayo lwemisindo ehlukahlukene emvelweni nalo luyahlukahluka kakhulu.Isignali yenkulumo evamile icishe ibe ngu-20-45dB kuphela, futhi ububanzi obuguquguqukayo bamanye ama-symphony angafinyelela ku-30-130dB noma ngaphezulu.Nokho, ngenxa yemikhawulo ethile, ububanzi obuguquguqukayo besistimu yomsindo akuvamile ukuthi bufinyelele ububanzi obuguquguqukayo bebhendi.Umsindo ongokwemvelo wedivayisi yokurekhoda unquma umsindo obuthakathaka ongarekhodwa, kuyilapho umthamo wesignali omkhulu (izinga lokuhlanekezela) wesistimu ukhawulela umsindo onamandla kakhulu.Ngokuvamile, ububanzi obuguquguqukayo besiginali yomsindo busethelwe ku-100dB, ngakho ububanzi obuguquguqukayo bemishini yomsindo lungafinyelela ku-100dB, okuyinto enhle kakhulu.

Ingqikithi yama-harmonics

Isho izingxenye ezengeziwe ze-harmonic zesignali yokuphumayo ebangelwa izingxenye ezingaqondile kunesiginali yokokufaka lapho umthombo wesignali yomsindo udlula kusikhulisi samandla.Ukuhlanekezelwa kwe-Harmonic kubangelwa ukuthi isistimu ayilayini ngokuphelele, futhi siyiveza njengephesenti lesikwele esiyimpande sengxenye ye-harmonic ephelele esanda kufakwa enanini le-rms lesiginali yoqobo.