Surround suab yog ib lo lus siv rau ntau hom ntawv uas ua rau koj hnov suab los ntawm ntau cov lus qhia, nyob ntawm cov khoom siv.
Txij thaum nruab nrab-1990s, ib puag ncig lub suab tau yog ib feem tseem ceeb ntawm kev ua yeeb yam hauv tsev thiab, nrog rau qhov ntawd, muaj ntau hom suab nrov ib puag ncig xaiv los ntawm.
kab hauv qab
Cov neeg ua si tseem ceeb hauv thaj chaw suab paj nruag yog Dolby thiab DTS. Txawm li cas los xij, muaj lwm tus. Feem ntau cov neeg tsim khoom hauv tsev ua yeeb yam muaj kev koom tes nrog lwm tus neeg thib peb nrog ib lossis ntau lub tuam txhab uas muab lawv tus kheej twists los txhim kho koj qhov kev paub ib puag ncig.
Yuav Ua Li Cas Koj Yuav Tsum Tau Nkag Mus Rau Ib Lub Suab
Koj xav tau lub tsev ua yeeb yam tau txais kev txhawb nqa yam tsawg kawg 5.1 channel hais lus, AV preamp / processor ua ke nrog ntau lub suab nrov thiab cov hais lus, lub tsev ua yeeb yam-hauv-ib lub thawv, lossis lub suab nrov rau experience surround sound.
Txawm li cas los xij, tus lej thiab hom hais lus lossis lub suab nrov hauv koj qhov teeb tsa yog ib feem ntawm qhov sib npaug. Txhawm rau kom tau txais txiaj ntsig ntawm lub suab ib puag ncig, koj kuj yuav tsum nkag mus rau cov ntsiab lus suab uas koj lub tsev ua yeeb yam txais, lossis lwm yam khoom siv sib xws, tuaj yeem txiav txim siab lossis txheej txheem.
Surround Sound Decoding
Ib txoj hauv kev nkag mus rau ib puag ncig lub suab yog siv cov txheej txheem encoding / decoding. Cov txheej txheem no yuav tsum muaj lub suab nrov ib puag ncig kom sib xyaw, encoded, thiab muab tso rau hauv lub disc, cov ntaub ntawv suab tau yooj yim, lossis lwm hom kev xa tawm los ntawm cov ntsiab lus (xws li lub studio ua yeeb yaj kiab).
Ib lub cim suab ib puag ncig yuav tsum tau nyeem los ntawm cov khoom siv ua si sib xws (Ultra HD Blu-duab tshav, Blu-duab tshav, lossis DVD) lossis cov xov xwm tshaj tawm (Roku Box, Amazon Hluav Taws Xob, lossis Chromecast).
Tus neeg uas ua ntawv lossis streamer xa cov teeb liab encoded los ntawm digital optical / coaxial lossis HDMI kev sib txuas mus rau lub tsev ua yeeb yam receiver, AV preamp processor, lossis lwm yam khoom siv sib xws uas txiav txim siab lub teeb liab thiab faib cov teeb liab mus rau cov channel tsim nyog thiab hais lus kom koj hnov.
Piv txwv ntawm cov suab ib puag ncig uas poob rau hauv qeb saum toj no suav nrog 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 Audio.
Surround Sound Processing
Lwm txoj hauv kev nkag mus rau lub suab ib puag ncig yog nrog kev ua suab ib puag ncig. Qhov no txawv dua li encoding/decoding. Txawm hais tias koj xav tau lub tsev ua yeeb yam, AV processor, lossis lub suab nrov nkag mus rau nws, nws tsis tas yuav muaj txheej txheem encoding tshwj xeeb ntawm sab xub ntiag.
Surround sound processing yog ua tiav los ntawm lub tsev ua yeeb yam tau txais kev nyeem cov suab nrov (uas tuaj yeem ua analog lossis digital) thiab tom qab ntawd nrhiav cov cues uas qhia qhov chaw uas cov suab yuav muab tso rau hauv yog tias nws nyob hauv ib puag ncig lub suab. format.
Txawm hais tias cov txiaj ntsig tsis raug raws li lub suab ib puag ncig uas siv lub tshuab encoding / decoding, nws muab qhov kev lees paub ib puag ncig lub suab rau feem ntau cov ntsiab lus.
Feem ntau ib puag ncig lub suab ua cov qauv tuaj yeem nqa ob lub suab tso suab teeb liab thiab sib xyaw rau plaub, tsib, xya, lossis ntau dua.
Yog koj xav paub seb koj cov qub VHS Hi-Fi tapes, audio cassettes, CDs, vinyl records, thiab FM stereo tshaj tawm suab zoo li nyob ib puag ncig lub suab, ib puag ncig lub suab ua yog txoj hauv kev ua.
Qee ib puag ncig lub suab ua tawm tswv yim suav nrog ntau lub tsev ua yeeb yam hauv tsev thiab lwm yam khoom siv tau suav nrog:
- Dolby Pro-Logic: Mus txog plaub channel.
- Pro-Logic II: Mus txog tsib tshooj.
- Pro-Logic IIx: tuaj yeem sib xyaw ob-channel suab mus txog xya channel lossis upmix 5.1 channel encoded signals mus txog 7.1 channels.
- Dolby Surround upmixer: tuaj yeem sib xyaw los ntawm ob, tsib, lossis xya tshooj rau Dolby Amos zoo li ib puag ncig kev paub nrog ob lossis ntau txoj kab ntsug.
Ntawm DTS sab, muaj DTS Neo: 6 (tuaj yeem sib xyaw ob lossis tsib txoj hauv rau rau 6 channel), DTS Neo: X (tuaj yeem sib xyaw ob, tsib, lossis xya txoj rau 11.1 raws), thiab DTS Neural:X (uas ua haujlwm zoo ib yam li Dolby Atmos upmixer).
Lwm yam kev ua suab nrov ib puag ncig suav nrog:
- Audyssey DSX: nthuav tawm 5.1 channel txiav txim siab lub teeb liab los ntawm kev ntxiv ib qho ntxiv-dav channel lossis pem hauv ntej qhov siab channel lossis ob qho tib si.
- Auromatic los ntawm Auro3D Suab: Ua haujlwm zoo ib yam li Dolby Surround thiab DTS Neural: X upmixers.
THX muaj cov qauv kev txhim kho suab tsim los txhim kho lub tsev ua yeeb yam zoo mloog rau cov yeeb yaj kiab, games, thiab suab paj nruag.
Ntxiv rau qhov kev txiav txim siab ib puag ncig thiab ua cov qauv saum toj no, qee lub tsev ua yeeb yam hauv tsev, AV processors, thiab cov neeg tsim suab nrov ntxiv cov hom xws li Anthem Logic (Anthem AV) thiab Cinema DSP (Yamaha).
Virtual Surround
Txawm hais tias saum toj no ib puag ncig kev txiav txim siab thiab ua cov qauv ua haujlwm zoo rau cov tshuab nrog ntau tus neeg hais lus, qee yam sib txawv yuav tsum tau ua haujlwm nrog soundbars. Nov yog qhov chaw virtual puag ncig lub suab tuaj.
Virtual surround suab ua rau lub suab nrov lossis lwm lub kaw lus (qee zaum muaj nyob hauv tsev ua yeeb yam txais tos ua lwm qhov kev xaiv) uas muab lub suab nyob ib puag ncig nrog ob tus neeg hais lus (lossis ob tus neeg hais lus thiab subwoofer).
Paub los ntawm ntau lub npe (raws li lub suab nrov nrov) Phase Cue (Zvox), Lub voj voog ncig (SRS / DTS–Lub voj voog ncig tuaj yeem ua haujlwm nrog ob qho tib si tsis tau sau npe thiab nkag mus), S-Force Front Surround (Sony), AirSurround Xtreme (Yamaha), Dolby Virtual Speaker (Dolby), thiab DTS Virtual: X.
Virtual surround tsis muaj tseeb ib puag ncig lub suab. Nws yog ib pab pawg ntawm cov thev naus laus zis uas, los ntawm kev ua haujlwm theem-hloov, suab qeeb, suab rov qab, thiab lwm yam txuj ci, ua rau koj lub pob ntseg xav tias koj tab tom ntsib lub suab ib puag ncig.
Virtual surround ua haujlwm hauv ib qho ntawm ob txoj hauv kev. Nws tuaj yeem siv ob-channel teeb liab thiab muab ib puag ncig zoo li kev kho mob. Los yog, nws tuaj yeem siv lub teeb liab 5.1 channel, sib tov rau ob txoj hauv kev, thiab tom qab ntawd siv cov lus qhia no los muab cov suab nrov ib puag ncig siv ob tus neeg hais lus uas nws yuav tsum ua haujlwm nrog.
Virtual ib puag ncig lub suab kuj tuaj yeem muab lub suab ib puag ncig kev mloog hauv lub mloog pob ntseg mloog ib puag ncig.
Kev Ua Kom Zoo Dua
Ib puag ncig lub suab tuaj yeem ua tiav ntxiv nrog rau kev siv ntawm kev txhim kho ambiance. Ntawm cov neeg ua yeeb yam hauv tsev feem ntau, ntxiv cov kev txhim kho lub suab tau muab ntxiv uas tuaj yeem ntxiv ambiance rau ib puag ncig lub suab mloog, txawm hais tias cov ntsiab lus los txiav txim siab lossis ua tiav.
Kev ua kom muaj kev thaj yeeb nyab xeeb muaj nws cov hauv paus hauv kev siv reverb los simulate qhov chaw mloog loj dua rov qab rau xyoo 1960 thiab 1970s (siv ntau lub suab hauv tsheb) tab sis tuaj yeem ntxhov siab.
Txoj kev uas reverb yog siv rau niaj hnub no yog los ntawm lub suab los yog mloog hom muab rau ntau lub tsev ua yeeb yam receivers thiab AV processors. Cov qauv ntxiv qhov tshwj xeeb ambiance cues haum rau cov ntsiab lus tshwj xeeb lossis simulate cov khoom acoustic ntawm cov chaw ib puag ncig.
Tej zaum yuav muaj hom kev mloog rau cov yeeb yaj kiab, suab paj nruag, kev ua si, lossis cov ntsiab lus kis las. Thiab, qee zaum, nws tau txais tshwj xeeb (sci-fi movie, taug txuj kev nyuaj movie, jazz, pob zeb, thiab ntau dua).
Qee lub tsev ua yeeb yam kuj muaj xws li cov chaw uas simulate lub suab nrov ntawm chav tsev ib puag ncig, xws li kev ua yeeb yaj kiab, auditorium, arena, lossis pawg ntseeg.
Qhov kawg kov muaj nyob rau ntawm qee lub tsev ua yeeb yam hauv tsev siab kawg yog lub peev xwm los kho qhov kev mloog ua ntej thiab kev teeb tsa ambiance manually los muab cov txiaj ntsig zoo dua los ntawm kev kho yam xws li chav tsev loj, ncua sijhawm, nyob, thiab reverb time.
