Dab tsi yog Surround Sound
Cov suab nrov thaj chaw yog ib lub sij hawm siv rau ntau hom kev tawm tswv yim uas ua rau tus mloog tau hnov suab los ntawm ntau cov lus qhia, nyob ntawm qhov khoom siv los.
Txij li thaum lub suab nrov ntawm lub suab paj nruag thaum xyoo 1990 tau ua ib qho tseem ceeb ntawm kev ua yeeb yam hauv tsev, thiab, qhov ntawd, tau los ntawm keeb kwm ntawm cov suab tawm suab los xaiv los ntawm.
Tus Neeg Ua Si hauv Cov Toj roob hauv pes zoo nkauj
Cov neeg ua si hauv cheeb tsam suab paj nruag yog Dolby thiab DTS, tiam sis muaj / thiab yog lwm tus, xws li Auro Audio Technologies. Tsis tas li xwb hais txog txhua lub tsev ua yeeb yam uas txais lub tsev tau, ntxiv nrog rau kev siv yees los ntawm ib los yog ntau dua ntawm cov tuam txhab, los kuj muab lawv tus kheej ntxiv twists los txhim kho cov kev ua si.
Yam Koj Yuav Tsum Tau Los Mus Saib Cov Suab Kom Zoo
Yuav tsum muaj suab nrov nrov, koj xav tau ib lub tsev ua yeeb yam tshaj plaws hauv tsev txhawb nqa tsawg kawg 5.1 hais lus kaw lus , muaj AV preamp / processor paired nrog multi-channel amplifier thiab tham, tsev ua yeeb yam hauv-ib-lub kaw lus, los yog lub suab suab.
Txawm li cas los xij, tus naj npawb thiab hom kev hais lus, los yog lub suab bar, koj muaj nyob rau hauv koj lub teeb tsuas yog ib feem ntawm qhov kev ua zauv. Yuav kom tau txais cov txiaj ntsim ntawm qhov suab ib puag ncig, koj kuj yuav tsum tau saib cov ntsiab lus hauv koj lub tsev ua yeeb yam, lossis lwm yam khoom siv sib xws, muaj peev xwm los txiav txim los yog ua haujlwm. Qhov no tuaj yeem ua tau ntau yam.
Kev Suab Dej Daws Siab
Ib txoj kev mus saib surround suab yog ntawm qhov txheej txheem encoding / decoding. Txoj kev no yuav tsum tau hais tias lub suab teebmeem ntawm lub suab yuav tsum sib xyaw, encoded, thiab muab tso rau hauv Disc los yog kwj ntawv tau suab, los ntawm tus neeg muab kev pab cuam (xws li movie studio). Yuav tsum tau nyeem ib lub cim suab hauv lub suab teeb meem (Ultra HD Blu-ray, Blu-duab tshav, DVD), los yog ib tus tawm suab (Roku Box, Amazon Fire, Chromecast).
Tus neeg ua si los yog tus neeg tawm dej mam li xa tawm qhov teeb meem ntawm qhov kev sib tw ntawm cov kabmob digital / txuas lossis HDMI txuas rau lub tsev ua yeeb yam hauv tsev, AV preamp processor, lossis lwm yam khoom siv uas yuav txiav txim tau qhov teeb liab, thiab xa mus rau cov kev cai thiab cov neeg tham kom nws tau hnov los ntawm tus mloog.
Piv txwv ntawm lub suab nrov surroundings uas tau poob rau hauv no yog xws li: Dolby Digital, EX, Dolby Digital Plus , Dolby TrueHD , Dolby Atmos , DTS Digital Surround , DTS 92/24 , DTS-ES , DTS-HD Master Audio , DTS: X , thiab Auro 3D suab .
Surround Sound Processing
Lwm txoj kev uas koj tuaj yeem nkag tau suab ua suab nrov yog ntawm kev ua suab nrov. Qhov no yog qhov sib txawv, txawm tias koj xav tau lub tsev ua yeeb yam hauv tsev, AV processor, los sis ib lub suab mus rau nws, nws tsis tas yuav muaj cov txheej txheem tshwj xeeb kev tawm tsam nyob rau ntawm nplooj ntawv kawg.
Xwb, qhov chaw ua suab nrov yog ua tiav los ntawm lub tsev ua yeeb yam hauv tsev (lwm yam ...) nyeem cov teeb liab uas tuaj yeem (uas yog cov analog los yog digital) thiab tom qab ntawd tab tom nrhiav cov cs lawm uas tau muab cov cim uas cov suab tso rau hauv yog tias tau nyob rau hauv ib lub suab uas muaj suab nrov encoded.
Txawm hais tias cov qhabnias tsis zoo li surround puag ncig uas siv kev kaw lus encoding / seev suab, cov ntsiab lus tsis muaj qub puag ncig suab-encoded.
Dab tsi zoo kawg nkaus rau cov tswvyim no yog tias koj tuaj yeem nqa cov teeb liab ntawm ob lub suab tawm thiab "upmix" nws mus rau 4, 5, 7, lossis ntau dua, raws li ntawm cov ntaub suab paj nruag siv.
Yog hais tias koj tau xav txog seb koj lub VHS Hifi tapes, Lub Cassettes, CDs, Vinil Records, thiab txawm tias FM xov tooj sib suab zoo li suab paj nruag, surround suab ua yog txoj kev ua nws.
Qee lub suab ua suab hom ntawv uas muaj nyob rau hauv ntau lub tsev txais suab paj nruag, thiab lwm yam khoom siv sib xws, xws li Dolby Pro-Logic (txog 4 raws), Pro-Logic II (mus txog 5 channels), IIx (upmix 2 channel audio up mus txog 7 raws lossis, 5.1 lub cim suab cim teeb tsa txog 7.1 raws), thiab Dolby Surround Upmixer (uas tuaj yeem ua kom siab tshaj 2, 5, los yog 7 raws mus rau Dolby Amos zoo li kev ua nrog ob lossis ntau dua ntawm txoj kab ntsug).
Hauv DTS sab, muaj DTS Neo: 6 (tuaj siab tau ob lossis 5 raws rau 6 raws), DTS Neo: X (tuaj yeem upmix 2, 5, lossis 7 raws 11,1 raws), anf DTS Neural: X nyob rau hauv ib yam zoo li lub Dolby Atmos upmixer).
Lwm cov suab ua suab nrov muaj xws li Audyssey DSX (muaj peev xwm nthuav tau ib lub teeb xyaw 5.1 teeb tsa los ntawm kev ntxiv ob qho tib si dav los yog pem hauv ntej qhov siab los yog ob qho tib si.
Kuj, Auro 3D Technologies kuj ua kom muaj nws lub suab ua hom uas ua haujlwm zoo ib yam li Dolby Surround thiab DTS Neural: X upmixers.
Txawm tias THX muab puag ncig lub suab ua hom uas tsim los ua kom zoo tshaj plaws hauv tsev yeeb yaj kiab mloog kev ua yeeb yaj kiab, kev ua si, thiab suab paj nruag.
Raws li koj muaj peev xwm pom muaj ntau qhov chaw suab suab seev thiab kev xaiv ua muaj, nyob ntawm lub hom / qauv ntawm koj lub tsev ua yeeb yam, AV processor, lossis suab bar, tab sis tsis yog txhua yam.
Tsis tas li ntawd, qhov teebmeem ntawm lub suab nrov thiab kev ua haujlwm saum toj no, qee lub tsev kawm ntawv theatre receivers, AV processors, thiab cov suab tshuab ua suab nrov ntxiv nrog lawv tus kheej xws li Anthem Logic (Anthem AV) thiab Cinema DSP (Yamaha).
Virtual Surround
Txawm hais tias cov lus hais saum toj no hais txog kev ua suab nrov thiab kev ua haujlwm ua haujlwm rau ntau lub tshuab, ntau yam yuav tsum tau ua hauj lwm nrog Cov Kev Tawm Paj Nruag - qhov no yog qhov chaw uas muaj suab nrov ua suab nrov. tsev ua yeeb yam hauv tsev ua lwm txoj haujlwm) uas muab lub suab "surround suab" nrog ob tug neeg tham (los yog ob tug neeg tham thiab subwoofer).
Paub ntau lub npe (nyob ntawm lub suab npe hom) Lub Cue (Zvox), Lub voj voos ncig (SRS / DTS - Lub voj voog ncig ua haujlwm nrog ob qho chaw tsis muaj encoded thiab encoded), S-Force Front Surround (Sony), AirSurround Xtreme (Yamaha ), thiab Dolby Virtual Speaker (Dolby), lub suab sib txuas lus tsis muaj tseeb tiag, tiam sis yog ib pawg ntawm cov cuab yeej uas, los ntawm kev ua hauj lwm hloov theem, suab qeeb, suab xav txog, thiab lwm cov tswv yim, tricks koj lub pob ntseg mus xav koj tseem muaj puag ncig lub suab.
Virtual surround yuav ua hauj lwm hauv ib txoj hauv kev ntawm ob txoj hauv kev, nws tuaj yeem yog siv ob hom teeb liab thiab muab kev kho suab zoo li suab thaj, los yog nws tuaj yeem ua tau teebmeem 5.1 teeb liab, sib xyaw kom haum raws ob, ces siv cov cues los muab lub suab puag ncig ntawm kev siv lub suab uas tsuas yog muaj ob tug neeg hais lus nws tau ua haujlwm nrog.
Lwm qhov tseem ceeb tshaj plaws txog Virtual Surround suab yog qhov no yog siv los muab ib puag ncig lub suab mloog hauv ib lub mloog pob ntseg mloog. Ob tug qauv yog Yamaha Silent Cinema, thiab Dolby Headphone.
Ambience Enhancement
Surround suab yuav ua tau ntxiv los ntawm kev siv Ambience Enhancement. Nyob rau ntau lub tsev ua yeeb yam hauv tsev, ntxiv cov suab li nqis tau muab ntxiv uas yuav ntxiv qhov chaw nyob rau kev mloog suab nrov, seb qhov twg yog qhov kev daws teebmeem lossis kev ua haujlwm.
Ambience li nws cov hauv paus hniav siv Reverb kom simulate thaj tsam loj dua rov qab rau hauv 60's thiab 70's (siv ntau lub suab suab), tab sis frankly, raws li tau siv thaum lub sij hawm, yuav yog heev annoying.
Txawm li cas los xij, txoj kev uas lub ntsiab lus reverb yog siv cov hnub no, yog ntawm lub suab los sis mloog hom uas muaj nyob rau ntau lub tsev ua yeeb yam hauv tsev thiab AV processors. Cov hom ntxiv ntxiv cov kev qhia ciab uas tsim nyog yuav tsum tau txiav rau tej hom ntsiab lus lossis simulate ambience thiab cov khoom siv zog ntawm ib qhov chaw hauv chav.
Piv txwv, tej zaum yuav muaj kev mloog lus rau Movie, Music, Game, or Sports - thiab, qee zaum nws tau txais ntau txawm tias (Sci-Fi movie, Adventure Movie, Jazz, Rock, etc ...).
Txawm li cas los xij, muaj ntau dua. Qee tus neeg ua yeeb yam hauv tsev kuj muaj xws li cov chaw uas sim ua tus xav siv cov chav kawm hauv tsev, xws li Kev Ua Yeeb Yam (Theater Alert), Auditorium, Arena, lossis Lub Koom Txoos.
Qhov kawg kov uas muaj nyob rau hauv qee cov tub ntxhais kawm ntawv ua yeeb yam, muaj peev xwm rau cov neeg siv cov txheej txheem qhib kev ua kom zoo dua qub thaum siv hom kev xaiv / kev nyab xeeb ntawm tus kheej kom ua zoo dua los ntawm kev tsim kho xws li chav loj, qeeb, liveness, thiab reverb lub sij hawm.
Lub Kab Hauv Qab
Raws li koj pom, Surround Sound yog ntau tshaj li kab lus xwb. Nyob ntawm seb koj muaj cov ntsiab lus dab tsi, kev ntaus ua si, thiab cov yam ntxwv ntawm chav tsev, muaj ntau txoj kev mloog uas tuaj yeem nkag mus rau thiab xav tau rau koj cov kev xav tau thiab nyiam.