Txij thaum Stereophonic suab nrov nrov ua rau hauv 50's qhov kev sib tw tau rau los tsim qhov kev mloog lus hauv tsev kawg. Txawm li ntawd rov qab los txij thaum xyoo 1930, cov kev sim nrog kev sib suab ua ke tau ua tiav. Nyob rau xyoo 1940, Walt Disney tau muab nws lub tswv yim Fantasound puag suab tshuab ua ke kom nkag mus rau cov neeg tuaj yeem hauv ob qhov kev pom thiab lub suab ntawm nws qhov kev ua yeeb yam, Fantasia .
Txawm hais tias "Fantasound", thiab lwm cov kev sim thaum ntxov hauv tshuab suab yuav tsis tshua tau duplicated rau hauv tsev ib puag ncig, uas tsis txwv lub quest los ntawm cov kws kho cov ntaub ntawv rau ob lub suab paj nruag thiab zaj duab xis los tsim cov txheej txheem uas yuav yog qhov tshwm sim ua rau cov suab ntawm cov suab nrov uas nyiam ua yeeb yam hauv tsev tsev thoob plaws ntiaj teb niaj hnub no.
Monophonic suab
Monophonic suab yog ib leeg-channel, unidirectional hom suab luam. Tag nrho cov ntsiab lus ntawm cov ntaubntawv povthawj siv suab yog hais txog kev siv tus amplifier thiab hais lus ua ke. Tsis muaj teeb meem txog qhov twg koj sawv hauv ib chav uas koj hnov tag nrho cov ntsiab lus ntawm lub suab sib npaug (tshwj tsis yog rau cov chav txawv txawv). Rau pob ntseg, tag nrho cov ntsiab lus ntawm lub suab, lub suab, cov twj paj nruag, cov teebmeem, thiab lwm yam ... tuaj rau lub hauv paus ntawm tib qho chaw hauv qhov chaw. Nws yog hais tias txhua yam yog "funneled" rau ib qho taw tes. Yog hais tias koj txuas ob tus neeg hais lus rau lub Monophonic amplifier, lub suab yuav tshwm sim los ntawm lub ntsiab lus nruab nrab ntawm ob tus neeg hais lus, tsim kom muaj "phantom" channel.
Stereophonic suab
Stereophonic Suab yog ib hom qhib ntau dua suab paj nruag. Txawm hais tias tsis muaj tseeb tiag, lub suab sib thooj ua rau tus neeg mloog tau qhov tseeb lub suab ntawm kev ua tau zoo.
Txoj Stereophonic Kev Soj Ntsuam
Qhov tseem ceeb ntawm Stereophonic suab yog qhov faib ntawm cov suab nyob ob txoj ke. Cov suab kaw tseg yog sib xyaw rau hauv xws li ib txoj kev uas cov ntsiab lus muaj channeled mus rau sab laug ntawm cov suab paj nruag; lwm tus mus rau sab xis.
Ib qho zoo tshwm sim ntawm lub suab tso suab yog tias cov neeg mloog tau hnov qhov tseeb suab ntawm cov suab paj nruag orchestra cov duab, qhov twg suab ntawm cov seev ntau ntau lawm los ntawm ntau qhov chaw ntawm theem. Txawm li cas los xij, monophonic ntsiab kuj muaj. Los ntawm sib xyaw cov suab los ntawm ib tug neeg ua suab paj nruag hauv ib pawg, mus rau ob qho tib si, tus neeg hu nkauj tau hu nkauj los ntawm "phantom" center channel, ntawm sab laug thiab sab xis.
Cov kev txwv ntawm Stereo Suab
Stereophonic suab yog ib qho kev sib tw rau cov neeg siv ntawm 50's thiab 60's tab sis muaj kev txwv. Qee cov ntaub ntawv tau ua rau "ping-pong" effect nyob rau hauv qhov sib tov hais txog qhov sib txawv ntawm sab laug thiab sab xis ntau dhau nrog tsis txaus sib xyaws ntawm cov ntsiab lus hauv "phantom" center channel . Tsis tas li, txawm hais tias lub suab tau zoo tshaj, qhov tsis muaj kev tawm tsam, xws li acoustics los yog lwm yam ntsiab lus, sab laug Stereophonic suab nrog ib tug "phab ntsa nyhav" uas txhua yam raug koj los ntawm lub hauv ntej thiab tsis muaj lub suab ntawm lub suab sab nrauv reflections los yog lwm cov ntsiab lus acoustic.
Quadraphonic suab
Ob qho kev tshwm sim tshwm sim nyob rau hauv cov hnub nyoog 60 xyoo thiab 70 xyoo ntxov uas sim tau hais txog kev txwv ntawm lub tso suab. Plaub Channel Discrete thiab Quadraphonic Suab.
Teeb Meem Nrog Four-Channel Discrete
Qhov teeb meem nrog Four Channel Discrete, nyob rau hauv plaub plaub qhov kev ua haujlwm zoo li qub (los yog ob lub tso suab) tau tsim tawm suab, yog tias nws tsis tshua kim heev (Cov no yog cov hnub ntawm Tubes thiab Transistors, tsis yog IC's thiab Chips).
Tsis tas li ntawd, cov suab paj nruag zoo li no tsuas yog muaj nyob rau Tshaj Xov Xwm (ob qhov FM tshev txhua qhov kev tshaj tawm ntawm ob txoj kev sib txig; .
Tsis tas li ntawd, Vinyl LP's thiab Turntables tsis tuaj yeem siv cov ntaub ntawv pov thawj ntawm cov plaub-channel discrete. Txawm hais tias ntau lub suab paj nruag ua yeeb yam tau simulcast siv qhov kev siv tshuab (nrog rau lub Chaw Haujlwm Saib Xyuas Kev Yees Duab Yees Duab Tshaj Tawm), tag nrho cov set-up tau cumbersome rau tus neeg siv nruab nrab.
Quad - Ib Qhov Chaw Zov Me Nyuam Ntxiv
Kev ua kom muaj tseeb thiab pheej yig mus kom ze rau cov suab paj nruag, dua li ntawm Four Channel Discrete, lub Quadraphonic hom muaj cov ntsiab lus ntawm plaub ntawm cov ntaub ntawv nyob hauv ob lub kaw suab. Cov tswv yim tshwm sim yog tias cov ambient los yog cov teebmeem suab tau muab tso rau hauv ob lub kaw suab uas yuav rov qab tau los ntawm ib qho phono stylus thiab kis mus rau ib tus neeg tuaj yeem los sis ntxiv nrog cov Quadraphonic decoder.
Hauv qog, Quad yog lub forerunner ntawm hnub no lub Dolby Surround (qhov tseeb, yog tias koj muaj cov khoom siv qub Quad - lawv muaj peev xwm los txiav txim rau feem ntau analog Dolby Surround Pib ntsais koj teeb). Txawm hais tias Quad tau muaj kev cog lus los coj tus nqi txaus siab rau qhov chaw nyob hauv tsev, qhov yuav tsum tau yuav cov tshiab amplifiers thiab receivers, cov neeg hais lus ntxiv, thiab thaum kawg tsis muaj kev pom zoo ntawm cov cuab yeej hluav taws xob thiab software tsim rau cov txheej txheem thiab cov programming, Quad tsuas tau khiav tawm ntawm roj ua ntej nws yuav tuaj tiag tiag.
Lub Emergence ntawm Dolby Surround
Nyob hauv nruab nrab-70's Dolby Labs, nrog kev seev suab paj nruag xws li Tommy , Lub Hnub Qub Wars , thiab Cov Kws Pom Zoo ntawm Peb Lub Hom Phiaj , qhia txog cov txheej txheem suab paj nruag tshiab uas yooj yim dua rau kev siv tsev. Tsis tas li ntawd, nrog rau lub HiFi Stereo VCR thiab TV Tso TV hauv lub xyoo 1980, muaj ib qho chaw ntxiv uas tau txais txiaj ntsig ntawm tsoomfwv hauv cheeb tsam: Tsev Theatre. Txog rau ntawm qhov taw tes, mloog lub suab ntawm TV los yog VCR daim kab xev yog zoo li mloog ib lub xov tooj cua AM.
Dolby Surround Sound - Tswv Yim Rau Lub Tsev
Nrog lub peev xwm uas tau muab cov ntaub ntawv qub rau hauv ob lub teeb liab uas tau teev nyob rau hauv thawj Movie lossis TV soundtrack, software thiab kho vajtse manufacturers tau ib lub tswv yim tshiab kom tsim nyog Surround sound components. Ntxiv-rau Dolby Surround processors tau muaj rau cov uas twb muaj cov suab-txais suab-nkaus xwb. Raws li cov koob meej ntawm txoj kev ua no tau txais mus rau hauv ntau lub tsev, ntau tus nqis Dolby Surround suab receivers thiab cov amplifiers los ua muaj, thaum kawg ua Surround suab ib ntu ntawm lub Tsev Kev Lom Zem.
Dolby Surround Basics
Tus txheej txheem Dolby Surround yuav tsum muaj plaub txoj kev ntawm cov ntaub ntawv - Sab Lem, Center, Pem Hauv Paus, thiab Tsheb Surround rau hauv ob lub teeb liab. Ib lub cim nti tom qab ces txiav plaub hau thiab xa mus rau qhov chaw uas tsim nyog, Left, Txoj Cai, Tsheb, thiab Phantom Center (nruab nrab channel yog muab los ntawm L / R pem hauv ntej).
Qhov tshwm sim ntawm Dolby Surround mixing yog ib qhov chaw sib npaug ntawm lub suab nrov uas yog los ntawm sab laug thiab sab xis, lub suab los yog kev sib txuas lus los ntawm qhov chaw phantom channel, thiab cov lus tso tawm los yog qhov teeb meem cov lus tawm hauv qab tus mloog.
Nyob hauv cov suab paj nruag kaw cov ntawv uas muaj cov txheej txheem no, lub suab muaj lub siab xav zoo tshaj, nrog lub suab paj nruag zoo dua. Nyob rau hauv movie yeeb yaj kiab, qhov kev xav ntawm lub suab nrov ntawm pem hauv ntej mus rau nram qab thiab sab laug rau ntawm txoj cai ntxiv ntau dua qhov tseeb rau kev saib / mloog kev los ntawm qhov muab tso rau hauv qhov kev txiav txim. Dolby Surround yog yooj yim pab nyob rau hauv ob lub suab paj nruag thiab cov suab seev suab paj nruag.
Qhov Txwv Ntawm Dolby Surround
Dolby Surround muaj nws cov kev txwv, txawm li cas los, nrog cov nram qab channel yog pib passive, nws lacks precise directionality. Kuj, qhov sib cais tag nrho ntawm kev yog ntau dua li cov ntaub ntawv raug Stereophonic.
Dolby Pro Logic
Dolby Pro Logic chaw nyob ntawm cov kev txwv ntawm tus qauv Dolby Surround los ntawm kev ntxiv cov khoom siv firmware thiab khoom kho nyob rau hauv qhov kev daws teeb meem uas hais txog cov cues tseem ceeb ntawm cov yeeb yaj kiab. Hauv lwm cov ntsiab lus, lub cim chip yuav ntxiv rau cov suab nrov ntawm cov lus taw qhia los ntawm kev ua kom nrov ntawm cov suab khiav hauv lawv cov kev cai.
Cov txheej txheem no, txawm hais tias tsis tseem ceeb hauv kev kaw suab paj nruag, zoo heev rau zaj duab xis soundtracks thiab ntxiv ntau cov neeg rau cov teebmeem xws li explosions, dav hlau flying overhead, thiab lwm yam. Muaj ntau dua sib cais ntawm kev. Tsis tas li ntawd, Dolby Pro Logic rho tawm ib lub Center Channel tshwj xeeb uas ntau qhov chaw sib txuas lus (qhov no yuav tsum muaj ib qhov chaw hais lus channel rau tag nrho cov nyhuv) hauv cov yeeb yam soundtrack.
Kev txwv ntawm Dolby Pro-logic
Txawm hais tias Dolby Pro-Logic yog ib qho zoo tshaj plaws ntawm Dolby Surround, nws cov teebmeem yog muab nrawm nrawm rau hauv cov txheej txheem tu tub tu kiv, thiab txawm hais tias lub tsheb puag ncig siv cov lus ob, lawv tseem huas lub teeb liab monophonic, limiting rear-to-front and side -ua-rau-pem suab thiab suab tso suab cues.
Dolby Digital
Dolby Digital yog feem ntau hu ua ib txoj kab ke 5.1. Txawm li cas los xij, nws yuav tsum tau sau tseg tias lub sij hawm "Dolby Digital" yog hais txog cov ntaub ntawv digital ntawm lub teeb liab, tsis yog li cas nws muaj. Hauv lwm cov lus, Dolby Digital yuav ua tau Monophonic, 2-channel, 4-channel, 5.1 raws, lossis 6.1 channels. Txawm li cas los xij, nyob rau hauv nws daim ntawv sau ntau tshaj, Dolby Digital 5.1 thiab 6.1 feem ntau hu ua Dolby Digital.
Cov Nyiaj Pab ntawm Dolby Digital 5.1
Dolby Digital 5.1 ntxiv ob qho tib neeg thiab yooj yim los ntawm kev ntxiv lub tsheb nyob puag ncig ntawm cov chaw uas pab kom muaj suab nrov nyob rau hauv cov lus qhia ntau ntxiv, nrog rau tus Subwoofer Channel muab kev qhia ntau rau cov teeb meem tsawg dua. Lub subwoofer channel yog qhov twg qhov kev xaiv tsa ntawm .1 los ntawm. Rau ntxiv, xa mus rau kuv tsab xov xwm: What the .1 txhais tau hais nyob hauv Surround Sound .
Tsis tas li ntawd, tsis zoo li Dolby Pro-logic uas yuav tsum tau muaj cov nram qab ntawm cov hluav taws xob tsawg zog thiab tsawg zaus teb, Dolby Digital encoding / decoding yuav tsum tau tib lub zog tso tawm thiab ntau zaus raws li lub ntsiab raws.
Dolby Digital encoding pib ntawm Laserdiscs thiab migrated rau DVD thiab satellite programming, uas tau ua tiav qhov hom ntawv nyob rau hauv kev lag luam. Vim tias Dolby Digital yuav tsum yog nws tus kheej cov txheej txheem encoding, koj yuav tsum muaj ib lub receiver Dolby Digital los yog tus nplij rau qhov tseeb ntawm qhov teeb meem, uas yog kis los ntawm kev tivthaiv, xws li DVD player, ntawm ib lub tshuab kho qhov muag lossis digital coaxial connector .
Dolby Digital EX
Dolby Digital EX yog ua tau raws li cov tswv yim tsim tau rau Dolby Digital 5.1. Txoj kev no ntxiv ib txoj kab thib peb sab uas muab tso ncaj qha rau tus neeg mloog.
Hauv lwm cov lus, tus neeg mloog tau ob sab pem hauv ntej thiab, nrog Dolby Digital EX, ib qho chaw nruab nrab ntawm qhov chaw. Yog tias koj poob suav, cov tshooj lus sau hais tias: Left pem hauv ntej, Center, Txoj cai sab nraud, Sij laug, Txoj cai, Subwoofer, nrog Surround Back Center (6.1) lossis Surround Back Left thiab Surround Back Right (uas yuav yog channel - nyob rau hauv cov nqe lus ntawm Dolby Digital EX decoding). Qhov no yog xav kom lwm tus neeg siv zog thiab tus cim tshwj xeeb ntawm A / V Surround Receiver.
Cov Nyiaj Pab ntawm Dolby Digital EX
Li ntawd, dab tsi yog qhov zoo ntawm cov EX li rau Dolby Digital Surround suab?
Yeej tseem ceeb, nws khoov rau qhov no: Hauv Dolby Digital, ntau lub suab ntxig los ntawm tus mloog ntawm sab pem los yog sab. Txawm li cas los xij, lub suab poob qee qhov kev taw qhia raws li nws txav ntawm sab mus rau nram qab, ua qhov kev ncaj ncees ntawm lub suab ntawm tsiv khoom txav los yog khawb ntawm chav tsev tsis yooj yim. Los ntawm kev tso ib txoj kab tsheb tshiab tom qab tus neeg mloog, panning thiab qhov teebmeem ntawm lub suab ntawm lub sab mus rau nram qab yog ntau ntau leej. Tsis tas li ntawd, nrog txoj kev ntxiv tsheb, nws yog qhov ua tau kom paub cov suab thiab cov teebmeem ntawm lub tsheb dua li precisely thiab. Qhov no yuav ua rau tus neeg mloog ntau dua nyob hauv qhov chaw ntawm qhov kev ua.
Dolby Digital EX Compatibility
Dolby Digital EX yog kiag li tshaj Dolby Digital 5.1. Txij li thaum lub Ceeb Tsheej Txheem Rawm yog qhov teeb meem hauv lub Dolby Digital 5.1 teeb liab, software titles encoded nrog EX tseem tuaj yeem raug ntaus rau cov neeg uas twb muaj cov DVD players nrog Dolby Digital outputs thiab seev suab hauv 5.1 ntawm cov uas twb muaj lawm Dolby Digital Receivers.
Txawm hais tias tej zaum koj yuav rov mus yuav tshiab EX-encoded versions ntawm films koj yuav muaj twb nyob hauv koj sau thaum koj thaum kawg tau koj tus khiav EX, koj tseem tseem ua koj cov DVDs tam sim no los ntawm ib tug 6.1 Channel Receiver thiab koj yuav tau mus ua si koj tshiab EX-encoded discs los ntawm ib tug 5.1 receiver, uas yuav cia li khaws cov ntaub ntawv ntxiv nrog rau lub tswv yim 5.1 tam sim no.
Dolby Pro Logic II thiab Dolby Pro Logic IIx
Txawm tias yav dhau los, Dolby puag suab nrov yog tsim los qhia qhov chaw nyob hauv cov DVD lossis lwm yam ntaub ntawv, muaj ntau ntau cov suab paj nruag CDs, VHS tsos, Laserdiscs, thiab cov tshooj xov xwm uas muaj cov lus yooj yooj yim analog ob channel los yog Dolby Surround encoding .
Surround Sound For Music
Tsis tas li ntawd, nrog rau cov qauv kev lag luam xws li Dolby Digital thiab Dolby Digital-EX feem ntau yog tsim los saib cov duab yeeb yaj kiab, muaj qhov tsis zoo ntawm cov txheej txheem suab paj nruag. Qhov tseeb, muaj ntau yam tsis txaus ntseeg audiophiles tsis txaus siab txog ntau lub suab paj nruag, nrog rau SACD tshiab (Super Audio CD) thiab DVD-suab ntau lub suab tawm tswv yim, hauv kev nyiam ua ob lub suab hauv lub tso suab.
Cov neeg tsim khoom, xws li Yamaha, tau tsim lub suab li yees duab (hu ua DSP - Digital Soundfield Processing) uas tuaj yeem muab cov khoom siv rau hauv qhov chaw suab nrov, xws li ib lub koom haum Jazz, concert hall, lossis chaw ua si, tab sis tsis tuaj yeem "hloov "ob los yog plaub khoom rau hauv ib hom ntawv 5.1.
Cov Kev Pab Ntawm Dolby Pro Logic II Kev Ua
Nrog rau qhov no, Dolby Labs tau tuaj rau txoj kev cawm nrog ib qho li nws thawj Dolby Pro-Logic tshuab uas tsim muaj ib qho "simulated" 5.1 channel puag ncig ntawm 4-Channel Dolby Surround teeb liab (dubbed Pro Logic II). Txawm hais tias tsis yog ib hom kev cais, xws li Dolby Digital 5.1 los yog DTS, uas txhua txoj hauv kev siv los ntawm nws tus kheej cov txheej txheem encoding / decoding, Pro Logic II ua zoo siv cov kev qhia kom xa cov duab 5.1 los sis suab paj nruag soundtrack. Nrog kev zoo siab hauv kev siv tshuab txij thaum thawj Pro-Logic txwm tsim tau tsim dua 10 lub xyoos dhau los, kev sib cais channel yog ntau dua, muab Pro Logic II lub cim ntawm lub tswv yim ntawm ib lub tswv yim 5.1 discrete, xws li Dolby Digital 5.1.
Extracting Surround Sound From Stereo Sources
Lwm cov txiaj ntsig ntawm Dolby Pro Logic II yog lub peev xwm los tsim kom tau ib qho kev mloog kev paub los ntawm ob-channel suab paj nruag cov duab. Kuv, rau ib qho, tau tsawg dua qhov txaus siab sim mloog ob-channel suab paj nruag kaw suab hauv cov suab ib puag ncig, siv tus qauv Pro Logic. Vocal tshuav, ntsuas tso, thiab cov suab nrov zoo ib txwm zoo li tsis tshua txaus siab. Muaj, ntau cov CD uas yog Dolby Surround lossis DTS encoded, uas yog sib xyaw rau kev mloog, tiam sis feem coob tsis yog li, yuav pab tau los ntawm daim ntawv thov ntawm Dolby Pro-Logic II li.
Dolby Pro Logic II kuj muaj ntau qhov chaw uas cia tus mloog tau kho cov soundstage kom haum npliag li. Cov chaw no yog:
Dimension tswj , uas tso cai rau cov neeg siv kho lub suab nrov ntawm lub hauv ntej los yog ntawm lub tsheb.
Qhov Chaw Tswj dav dav , uas tso cai rau kev sib txawv ntawm qhov chaw nruab nrab ces nws tsuas hnov ntawm lub chaw hais lus, tsuas yog los ntawm Left / Right hais lus los ua tus "phantom" chaw duab, lossis ntau yam kev sib txuas ntawm txhua tus neeg hais lus peb.
Panorama Hom uas txuas rau pem hauv ntej lub duab thev duab nrog rau cov neeg hais lus puag ncig rau cov nyhuv wraparound.
Ib qho kawg ntawm qhov Pro-Logic II decoder yog tias nws tuaj yeem ua tau raws li "ib txwm" 4-channel Pro-Logic decoder, li ntawd, hauv essence, receivers uas muaj Pro-Logic decoders tau, xwb, xws li Pro Logic II decoders , muab tus neeg tau txais kev pab ntau dua, tsis tas muaj tus nqi ntawm ob qhov sib txawv ntawm Pro-Logic decoders hauv tib chav tsev.
Dolby Pro Logic IIx
Thaum kawg, ib qho kev hloov tshiab ntawm Dolby Pro Logic II yog Dolby Pro Logic IIx, uas nthuav cov peev xwm ntawm extraction ntawm Dolby Pro Logic II, nrog rau nws cov chaw nyiam, 6.1 los yog 7.1 raws ntawm Dolby Pro Logic IIx ntim thiab cov kev pabcuam. Dolby Pro Logic IIx ua hauj lwm kom xa cov kev mloog kev mloog mus rau ntau dua cov kev tsis muaj kev nco thiab rov tsim cov khoom qub. Qhov no ua rau koj cov ntaub ntawv thiab CD sau tau yoog yooj yim mus rau qhov tseeb puag ncig lub suab mloog lus.
Dolby Prologic IIz
Dolby Prologic IIz ua yog ib qho uas ua rau kom muaj suab nrov puag ncig. Dolby Prologic IIz muaj kev xaiv ntxiv ob sab pem hauv ntej hais lus uas tau muab tso rau sab laug thiab sab xis lub ntsiab lus. Qhov no feature ntxiv "ntsug" los sis nyiaj siv ua haujlwm tshaj rau qhov chaw ua suab nrov (zoo heev rau nag, nyoob hoom qav taub, ya davhlau ya los). Dolby Prologic IIz yuav muab ntxiv rau ib qho 5.1 los yog 7.1 teeb channel. Rau ntxiv, xyuas seb kuv tsab xov xwm: Dolby Pro-Logic IIz - Koj Yuav Tsum Tau Paub Txog Dab Tsi .
CEEB TOOM: Yamaha muaj cov cuab yeej zoo sib xws rau qee qhov ntawm nws lub tsev ua yeeb yam hu ua Presence.
Dolby Virtual Speaker
Txawm hais tias tus qauv ntawm surround suab relies on ntxiv ntxiv raws thiab tham, qhov ntau ntawm cov neeg tham nyob ib ncig ntawm chav tsev tag nrho tsis yog ib txwm ua. Nrog rau qhov ntawd, Dolby Labs tau tsim ib txoj hauv kev los tsim kom muaj ib qho kev haumxeeb zoo uas qhia txog qhov teebmeem uas koj tabtom mloog suab paj nruag kaw lus tiam sis tsuas yog siv ob tus neeg hais lus thiab subwoofer xwb.
Dolby Virtual Speaker, thaum siv cov txheej txheem tso suab, xws li CD, tsim ib lub dav suab nrov. Txawm li cas los xij, thaum lub tso suab ntawm cov stereo nrog Dolby Prologic II, los yog Dolby Digital encoded DVDs, Dolby Virtual speaker tsim ib qho 5.1 duab siv cov cuab yeej siv rau hauv tus account suab xav txog thiab ua li cas tib neeg hnov suab hauv ib puag ncig ntuj, enabling surround suab qhov teeb liab yuav tsum muab tsim tawm tsis xav tau tsib los yog rau cov neeg tham.
Audyssey DSX (los yog DSX 2)
Audyssey, ib lub tuam txhab uas tsim thiab cov khw muag khoom sib txuas lus chav sib npaug thiab kho qhov software, tau tsim nws lub suab nruab nrab lub suab nruab nrab: DSX (Dynamic Surround Expansion).
DSX ntxiv pem hauv ntej ntsug pem taub hau, zoo ib yam li Prologic IIz, tab sis kuj sib txuas ntxiv ntawm kev sablaj sab laug / txoj cai sab nraud ntawm sab laug thiab sab xis thiab puag ncig sab laug thiab sab xis. Rau cov ncauj lus kom ntxaws thiab kev sib tham lus, xyuas seb tus Tso Ntaub Ntawv Tso Cai Soj Ntsuam DSX Page.
DTS
DTS kuj yog ib tug neeg paub zoo uas muaj suab nrov puag ncig thiab tau txais nws cov suab puag ncig rau kev siv hauv tsev. Qib DTS yog ib qhov kev ua tau zoo 5.1 xws li Dolby Digital 5.1, tab sis vim DTS siv kev ywj pheej tsawg dua ntawm txoj kev txheej txheem, ntau tus neeg xav tias DTS muaj qhov tshwm sim zoo rau kev mloog kawg. Tsis tas li ntawd, thaum Dolby Digital yog lub hom phiaj siv rau Kev Tshawb Fawb Movie, DTS yog siv rau qhov sib tov thiab kev tsim tawm ntawm cov suab paj nruas ua yeeb yam.
DTS-ES
DTS tau tuaj nrog nws tus kheej 6.1 channel systems, sib tw nrog Dolby Digital EX, xa mus rau DTS-ES Matrix thiab DTS-ES 6.1 Discrete. Yeej, DTS-ES Matrix muaj peev xwm tsim tau ib qhov chaw nruab nrab ntawm DTS 5.1 teeb meem ntawm cov ntaub ntawv, thaum DTS-Dis Discrete yuav tsum tau hais tias software raug ntaus tau muaj DTS-ES Discrete soundtrack. Raws li Dolby Digital EX, DTS-ES thiab DTS-ES 6.1 Discrete formats rov qab tau tshaj 5.1 channel DTS Receivers thiab DTS encoded DVDs.
DTS Neo: 6
Ntxiv rau DTS 5.1 thiab DTS-ES Matrix thiab Discrete 6.1 channel, DTS kuj muaj DTS Neo: 6 . DTS Neo: 6, kev ua haujlwm zoo ib yam li Dolby Prologic II thiab IIx, uas, nrog cov neeg txais kev pabcuam thiab cov preamps uas muaj DTS Neo: 6 decoders, nws yuav extract 6.1 channel puag ncig ntawm cov khoom uas twb muaj lawm analog ob-channel.
DTS Neo: X
Cov kauj ruam tom ntej uas DTS tau siv yog ua kom paub nws cov 11.1 Channel Neo: X hom ntawv. DTS Neo: X siv cov cues uas tau muaj nyob rau hauv los ntawm 5.1 los yog 7.1 channel soundtracks thiab tsim qhov siab thiab dav raws, enabling ntau lub suab "3D". Yuav kom paub ntau tshaj plaws ntawm DTS Neo: X processing, nws yog qhov zoo tshaj kom muaj 11 tus neeg hais lus, nrog 11 raws kev txhawb zog, thiab ib subwoofer. Txawm li cas los xij, DTS Neo: X tau muab kho ua hauj lwm nrog txoj kev teeb tsa 9.1 los yog 9.2.
DTS Surround Sensation
Qhov Kev Ntsuas Saum ua ib qho chaw phantom, sab laug, txoj cai, thiab ib puag ncig ntawm ob sab-hais lus lossis lub tso suab ntawm lub mloog pob ntseg. Nws yog peev xwm coj txhua yam kev qhia tawm suab paj nruag 5.1 thiab ua rau muaj kev paub suab nrig nrog ob tus neeg hais lus. Tsis tas li ntawd, ib puag ncig ntawm lub siab tuaj yeem nthuav dav ob lub suab paj nruag (xws li MP3) rau kev mloog zoo li ib puag ncig.
SRS / DTS Tru-Surround thiab Tru-Surround XT
SRS Labs yog lwm lub tuam txhab uas tseem muaj cov kev yees tshiab uas yuav txhim kho cov kev ua yeeb yam hauv tsev (Nco ntsoov: Txij thaum Lub Xya Hli 23, 2012, SRS Labs yog tam sim no yog ib feem ntawm DTS ).
Tru-Surround muaj peev xwm los siv cov khoom siv ntau qhov chaw, xws li Dolby Digital, thiab cov me nyuam puag ncig los ntawm kev siv ob tug neeg sib tham. Cov txiaj ntsig tsis zoo li Dolcer Digital 5.1 (qhov teeb meem ntawm lub hauv ntej thiab sab nrawm yog zoo kawg nkaus, tab sis lub tsheb puag teeb meem me ntsis luv luv, nrog qhov kev nkag siab tias lawv tuaj ntawm kev cia li mus rau nram qab ntawm koj lub taub hau es tsis txhob rov qab los chav). Txawm li cas los xij, nrog ntau tus neeg xav tsis kam sau lawv chav pw nrog rau lossis rau xya lub suab nrov nrov, Tru-Surround thiab Tru-SurroundXT muab qhov kev muaj peev xwm txaus siab rau 5.1 lub suab qis hauv thaj tsam li ob feem kev mloog suab paj nruag.
SRS / DTS Circle Surround thiab Circle Surround II
Lub voj voos ncig, ntawm qhov tod tes, txuas puag ncig suab hauv ib txoj kev sib txawv. Thaum Dolby Digital thiab DTS ua kauj koos suab rau lub hom phiaj ntawm kev ncaj ncees (cov suab tshwj xeeb uas tawm los ntawm cov neeg hais lus tshwj xeeb), Lub voj voos ncig thaj tsam hais txog lub suab nrov. Yuav kom ua tiav qhov no, ib qho 5.1 suab suab tau muab teev cia rau ob txoj kev, rov qab rov qab rov qab mus rau hauv 5.1 raws thiab muab faib rov qab mus rau 5 cov neeg hais lus (ntxiv rau subwoofer) nyob rau hauv xws li ib txoj kev uas yuav tsim tau ntau lub suab uas tsis tas poob ntawm cov kev coj ntawm tus thawj 5.1 channel qhov khoom siv.
Cov txiaj ntsig yog qhov zoo tshaj qhov tshaj ntawm Tru-Surround lossis Tru-Surround XT.
Ua ntej, panning suab xws li ya dav hlau, lub tsheb ceev ceev, lossis tsheb ciav hlau, suab txawm tias lawv hla lub suab theem; feem ntau hauv DD thiab DTS, panning suab yuav "poob" hauv qhov kev siv thaum lawv tsiv los ntawm ib tus neeg hais lus rau lwm zaus.
Kuj, tsheb-rau-pem hauv ntej thiab pem hauv ntej-rau-nram qab lub suab nrov smoother li zoo. Thib ob, tej lub suab nrov, xws li xob quaj, nag, cua, lossis cua tsis zoo tag nrho lub suab nrov zoo dua hauv DD lossis DTS. Piv txwv li, tsis hnov lus nag los ntawm ntau cov lus qhia, cov ntsiab lus ntawm cov lus teb ntawm cov lus qhia yog puv, yog li muab tso rau hauv cov nag los nag, tsis yog cia li mloog nws.
Lub voj voog puag ncig qhia txog Dolby Digital thiab zoo ib puag ncig lub suab uas tsis muaj kev ntxub ntxaug ntawm lub suab sib tov.
Lub voj voog Surround II yuav siv lub tswv yim no ntxiv los ntawm kev ntxiv ib qho kev pabcuam hauv chaw nres tsheb ntxiv, yog li muab lub thauj tog rau ntawm lub suab tawm ntawm sab nraud.
Headphone Surround: Dolby Headphone, CS Headphone, Yamaha Silent Xinesmas, Smyth Research , thiab DTS Headphone: X.
Surround Sound tsis yog tas li rau ntau qhov system, tab sis kuj tuaj yeem siv tau rau lub mloog pob ntseg. SRS Labs, Dolby Labs, thiab Yamaha muaj tag nrho cov tshuab ua suab paj nruag nrog lub mloog pob ntseg mloog.
Feem ntau, thaum mloog lub suab (suab paj nruas los yog yeeb yaj kiab) lub suab zoo li pib hauv koj lub taub hau, uas yog tsis zoo. Dolby Headphone SRS Lub taub hau, Yamaha Silent Cinema, thiab Smyth Research ntiav tshuab uas tsis tsuas muab tus mloog lub suab ntim xwb, tab sis tshem tawm ntawm nws lub ntsej muag thiab thaj chaw ua suab nrov ntawm sab xub ntiag thiab sab nraum lub taub hau, uas yog ntau dua li mloog mus rau ib txwm hais lus puag ncig lub suab kaw lus.
Hauv lwm txoj kev loj hlob, DTS tau tsim DTS Headphone: X uas tuaj yeem muab rau 11.1 channel puag ncig lub suab mloog siv cov khub ntawm lub ntsej muag uas siv rau hauv lub mloog xov tooj, xws li smartphone, portable media player, los yog tsev ua yeeb yam hauv tsev nrog DTS Headphone: X ua.
Cov Lus Txhais Ua Yooj Yim Los Suab Nrab Suab Nruab Nrab: Dolby Digital Plus , Dolby TrueHD, thiab DTS-HD Master Audio
Nrog cov kev taw qhia txog Blu-Ray Disc thiab HD-DVD (HD-DVD lawm txij li tau txiav lawm), nyob nrog HDMI interface kev txuas, kev txhim kho siab txhais suab tawm suab hauv DTS (nyob rau hauv ob daim DTS-HD thiab DTS-HD Master Audio) thiab Dolby Digital (nyob rau hauv daim ntawv ntawm Dolby Digital Plus thiab Dolby TrueHD) muab kev txhim kho thiab tseeb.
Kev ntxiv zog ntawm Blu-ray thiab HD-DVD, thiab kev hloov mus rau ntau dua ntawm HDMI , uas yog yuav tsum tau nkag mus rau Dolby Digital Plus, Dolby TrueHD, thiab DTS-HD, tau pub rau kev muaj tseeb, qhov ntsej muag, suab ua kom txog li 7.1 Cov suab cua ntawm ib puag ncig, thaum tseem rov qab sib xws nrog cov laus 5.1 channel puag ncig lub suab thiab cov suab / cov yeeb yaj kiab.
Ceebtoom: HD-DVD tau raug txiav lawm, tabsis yog hais txog hauv tsab ntawv no rau cov hom phiaj keeb kwm.
Dolby Atmos thiab Ntau
Pib hauv xyoo 2014, lwm lub suab nrov tau muab tso rau hauv thaj chaw ua yeeb yam hauv tsev, Dolby Atmos. Txawm hais tias lub tuam tsev tsim los ntawm yav dhau los Dolby Surround suab tawm tswv yim, Dolby Atmos tau muab suab nrov thiab mloog cov lus los ntawm cov kev txwv ntawm cov neeg hais lus thiab cov ntsiab lus los ntawm kev qhia txog qhov uas lub suab yuav tsum tau muab tso rau hauv ib qho chaw muaj 3-dimensional. Yog xav paub ntxiv txog Dolby Atmos technology, cov ntawv thov, thiab cov khoom siv, xa mus rau cov khoom nram qab no kuv tau sau:
Dolby Atmos - Koj Puas Ready Rau 64-Channel Surround Suab?
Dolby Atmos - Los Ntawm Lub Xinesmas Rau Koj Hauv Tsev Theatre
Ntau Surround suab yees
Saib rau ntawm DTS: X Surround Sound Format
Xaus - Rau Tam Sim No ...
Niaj hnub no ib puag ncig lub suab yog qhov tshwm sim ntawm xyoo ntawm evolution. Lub suab nrov puag ncig tam sim no yooj yim siv tau yooj yim, tswv yim, thiab pheej yig rau tus neeg tau txais kev pab, nrog ntau dua tuaj rau yav tom ntej. Mus ncig ua si!
Cov Nta:
5.1 vs 7.1 Channel Cov Tub Ntxhais Cov Yeeb Ncuab Channel - Uas Yog Txoj Cai Rau Koj? .
Yuav ua li cas rau .1 Txhais tau tias nyob hauv Txoj Kev Zoo Siab