Mukuita kwekutenderedza ruzha, ese Dolby AC3 neDTS vane hunhu hwavanoda akawanda matauri panguva yekutamba.Nekudaro, nekuda kwemitengo uye nzvimbo zvikonzero, vamwe vashandisi, sevashandisi vemultimedia komputa, havana vatauri vakakwana.Panguva ino, tekinoroji inodiwa inokwanisa kugadzirisa masaini e-multi-channel uye oatamba achidzoka mumatauri maviri akafanana, uye kuita kuti vanhu vanzwe kutenderedza ruzha.Iyi iine virtual surround sound tekinoroji.Zita reChirungu revirtual surround sound iVirtual Surround, inonziwo Simulated Surround.Vanhu vanodana tekinoroji iyi isiri-standard surround sound technology.

Iyo isiri-yakajairwa yakatenderedza ruzha system yakavakirwa pambiri-chiteshi stereo pasina kuwedzera chiteshi uye vatauri.Chiratidzo chemunda chinonzwika chinogadziriswa nedunhu uye chobva chatepfenyurwa, kuitira kuti muteereri anzwe kuti ruzha rwunobva kune dzakawanda nzira uye gadzira inofananidzirwa stereo ndima.Kukosha kwevirtual surround sound Kukosha kwevirtual surround tekinoroji kushandisa vatauri vaviri kutevedzera matenderedzwa eruzha.Kunyangwe isingakwanise kuenzaniswa neyeiyo imba theatre, mhedzisiro yacho yakanaka mune yakanakisa yekuteerera chinzvimbo.Kuipa kwacho ndechokuti kazhinji hachienderani nokuteerera.Inonzwika chinzvimbo chinodiwa chakakwira, saka kushandisa iyi chaiyo yakatenderedza tekinoroji kune mahedhifoni isarudzo yakanaka.

Mumakore achangopfuura, vanhu vakatanga kudzidza kushandiswa kwematanho mashoma uye vatauri vashoma kugadzira matatu-dimensional ruzha.Iyi kurira kwekuita haisi yechokwadi seyakakura yakatenderedza matekinoroji akadai seDOLBY.Nekudaro, nekuda kwemutengo wakaderera, tekinoroji iyi iri kuwedzera kushandiswa mumagetsi amplifiers, terevhizheni, odhiyo yemotokari uye AV multimedia.Iyi tekinoroji inodaidzwa kunzi non-standard surround sound technology.Iyo isiri-yakajairwa yakatenderedza ruzha system yakavakirwa pambiri-chiteshi stereo pasina kuwedzera chiteshi uye vatauri.Chiratidzo chemunda chinonzwika chinogadziriswa nedunhu uye chobva chatepfenyurwa, kuitira kuti muteereri anzwe kuti ruzha rwunobva kune dzakawanda nzira uye gadzira inofananidzirwa stereo ndima.

Virtual Surround Sound Principle Kiyi yekuziva chaiyo Dolby Surround Sound ndiyo chaiyo yekugadzirisa inzwi.Iyo inoshanda mukugadzirisa yakatenderedza chiteshi chezwi yakavakirwa pamunhu physiological acoustics uye psychoacoustic nheyo, ichigadzira fungidziro yekuti yakatenderedza sosi inobva kumashure kana kudivi remuteereri.Migumisiro yakawanda inobva pamitemo yekunzwa kwevanhu inoshandiswa.Binaural effect.Nyanzvi yefizikisi yekuBritain Rayleigh akawana kuburikidza nekuedza muna 1896 kuti nzeve mbiri dzevanhu dzine misiyano yenguva (0.44-0.5 microseconds), misiyano yekusimba kwekurira uye mutsauko wechikamu chekunzwika kwakananga kubva kune imwechete inonzwika sosi.Kunzwa kwekunzwa kwenzeve yemunhu kunogona kutariswa zvichibva pane izvi zvidiki Musiyano unokwanisa kunyatso tsanangura kwainobva ruzha uye kuona nzvimbo yeizwi sosi, asi inogona kungogumira pakuona kunobva ruzha munzira yakachinjika pamberi. , uye haikwanise kugadzirisa kumira kwetatu-dimensional spatial inonzwika sosi.

Auricular effect.Iyo auricle yemunhu inoita basa rakakosha mukuratidzira kwemafungu eruzha uye kutungamira kwenzvimbo inonzwika masosi.Kuburikidza nemhedzisiro iyi, iyo-matatu-dimensional chinzvimbo cheizwi sosi inogona kutsanangurwa.Frequency kusefa mhedzisiro yenzeve yemunhu.Iyo ruzha rwekugadziriswa kwenzvimbo yenzeve yemunhu ine hukama neiyo ruzha frequency.Iyo bass ye20-200 Hz inowanikwa nechikamu musiyano, iyo yepakati-renji ye300-4000 Hz inowanikwa neruzha rwekusimba musiyano, uye treble inowanikwa nekusiyana kwenguva.Kubva pamusimboti uyu, misiyano yemutauro uye matani emimhanzi mumhanzi yakadzokororwa inogona kuongororwa, uye kurapwa kwakasiyana kunogona kushandiswa kuwedzera pfungwa yekutenderedza.Musoro-unoenderana nekufambisa basa.Iyo yemunhu inoongorora sisitimu inoburitsa zvakasiyana-siyana zvemanzwi kubva kwakasiyana mativi, uye iyi spectrum hunhu inogona kutsanangurwa nemusoro-inoenderana nekufambisa basa (HRT).Kupfupisa, kumira kwenzvimbo kwenzeve yemunhu kunosanganisira mativi matatu: yakachinjika, yakatwasuka, uye kumberi neshure.

Kumisikidzwa kwakachinjika kunonyanya kuvimba nenzeve, kumira kwakamira kwakamira zvakanyanya kutsamira pagoko renzeve, uye kumberi nekumashure chinzvimbo uye maonero enzvimbo yakatenderedza ruzha anovimba nebasa reHRTF.Zvichienderana nemhedzisiro iyi, chaiyo Dolby yakatenderedza inogadzira yakafanana wave wave mamiriro seyo chaiyo inonzwika sosi munzeve yemunhu, ichibvumira uropi hwemunhu kuburitsa inoenderana inonzwika mifananidzo mune inoenderana spatial kutaridzika.