I-Bitstream Audio iyisici esibalulekile emidlalo yaseshashalazini - thola ukuthi kungani
Sithatha kalula lapho silalela umlayezo, kodwa ukuthola umculo, inkhulumomphendvulwano kanye nemisindo evela kumthombo ezindlebeni zakho kudinga ubuchwepheshe obonakala bufana nemilingo.
Okunye ubuchwepheshe obuqashwe ekuhambiseni umsindo bubizwa ngokuthi yi- Bitstream (aka Bitstream Audio, Bit Stream, Digital Bitstream, noma Audio Bitstream).
I-Bitstream ichazwe
I-Bitstream yizinkinobho zedatha kanambambili (1 no-0) ezingadluliselwa kusuka kudivayisi eyodwa kuya kwenye. Ama-Bitstream asetshenziselwa ku-PC, ukuxhumana nezinhlelo zokusebenza zomsindo.
Ukulalelwayo, i-bitstream ihilela ukuguqula umsindo ube yizinkinobho zedijithali zolwazi (1 no-0) bese udlulisela lolo lwazi kusuka kumshini womthombo kumuntu owamukelayo, futhi, ekugcineni, ezindlebeni zakho.
Isibonelo, i- PCM ne- Hi-Res yomsindo yizibonelo zomsindo osebenzisa ama-bitstreams ukudlulisela izignali zomsindo wedijithali.
Indlela I-Bitstream Eyasetshenziswa Ngayo Ekhaya Leshashalazi
Ezingxenyeni zaseshashalazini zasendlini, i-bitstream ichazwe ngokucacile njengendlela yokudlulisa izignali zomsindo ezifakiwe zefomethi ezizungezile zomsindo ezivela emthonjeni kuya kumamukeli wendawo yaseshashalazini ohambisanayo noma inhlanganisela ye- AV preamp / inqubo / inhlanganisela yamandla we-amplifier .
Isamukeli sekhaya yaseshashalazini noma iprojector ye-AV ithola ukuthi ifomu elizungezile lifakwe kuyo. I-processor eyamukelayo noma i-AV iphinda ikwazi ukucacisa ulwazi ngokusekelwe emiyalweni enikezwe kwisignali encane, ineza noma yikuphi ukuthunyelwa kokuthunyelwe okungeziwe, futhi ekugcineni iguqulwe kwifomu le-analog ukuze ikhuliswe futhi ithunyelwe kuzikhulumi ukuze uzwe it.
Inqubo ye-bitstream iqala nomdali wokuqukethwe kanye / noma injini yomsindo / mixer. Ukuze u-bitstream usebenze, umdali wokuqukethwe / unjiniyela womsindo uqala ukukhetha ukuthi iyiphi ifomethi enomsindo ozungezile ongayisebenzisa ukuze urekhode umsindo noma ukuhanjiswa okuphilayo. Umdali (umsindo womsindo, umxubeki) bese eqhubeka ukufaka umsindo njengama-bits edijithali kufomethi ekhethiwe ngokwemigomo yesakhiwo.
Uma le nqubo isiphelile, izingcingo zibekwa kwiDiski (i-DVD, i-Blu-ray, i-Ultra HD Blu-ray), ikhebula noma isevisi ye-satellites, umthombo wokusakaza, noma ngisho nokunamathiswa kwe-TV ebukhoma.
Izibonelo zezakhiwo ezizwakalayo ezizungezile ezisebenzisa inqubo yokudlulisa kancane zihlanganisa i- Dolby Digital, EX, Plus , i- TrueHD , i- Atmos , i- DTS , i- DTS-ES , i- DTS 96/24 , i- DTS HD-Master Audio , ne- DTS: X.
I-bitstream edingekayo ingathunyelwa kusuka emthonjeni ngqo kumamukeli wemidlalo yaseshashalazini (noma i-AV Preamp / Processor) ngokuxhumeka ngokomzimba ( optical digital, digital coaxial , noma i-interface ye- HDMI ) kusuka ku-disc player efanele, umsakazo wezindaba, noma ikhebula / i-satellite ibhokisi. I-bitstream ingathunyelwa nge-wireless nge-antenna noma inethiwekhi yasendlini.
Izibonelo ze-Bitstream Management
Nazi izibonelo zendlela ukudluliswa kwe-audio encane kungasebenza kuhlelo lokusetha yaseshashalazini:
- I-DVD, i-Blu-ray, noma i-Ultra HD iqukethe i-soundtrack ye-Dolby Digital noma i-DTS ekhonjiswe njengezinkinobho zedijithali. Isidlali esivumelanayo kufanele sifunde lokhu kukhishwa kwe-disc, udlulisele isignali encoded kwifomu encane nge-digital optical, coaxial digital, noma uxhumano lwe-HDMI ku-Receiver yasekhaya yasekhaya / i-AV Preamp Processor ene-Dolby Digital noma i-DD Decoder.Umamukeli, futhi, ikhetha i-Dolby Digital noma i-DTS engxenyeni yayo efanele yesiteshi bese ithumela isignali yesiteshi esinikezwe ngezihambeli ezifanele, ukuze ilalele umlaleli ngokusebenzisa ama-loudspeakers.
- Ngaphandle kwendlela engenhla yokuphatha i-bitstream, i-DVD Blu-ray, noma i-Ultra HD Disc player ingase inikeze ikhono lokunquma i-bitstream ephuma kwi-disc ngaphakathi kwifomethi ye-PCM .Lokhu kusho ukuthi kunokuba kuxhomeke kumamukeli ukucacisa i-bitstream evela kumdlali, kwezinye izimo ungakhetha ukuba isidlali sithumele isignali esivele samukelwe kwifomu ye-PCM nge-digitally kumamukeli wendawo yaseshashalazini nge-HDMI noma kwifomu ye-analog ngokusebenzisa uxhumano lwe- analog multi-channel .
- Kulezi zimo, amakhodididi womukeli we-receiver ahlehlisiwe futhi isignali yomsindo idluliselwa ngokuqondile kumamukeli kuya kuma-amplifiers ayo nakuzo izikhulumi ngaphandle kokucubungula ngaphandle uma umlaleli evula noma yikuphi ukucubungula okungeziwe ngaphakathi kwe-receiver yasekhaya noma i-AV preamp / pro processor.
- Isiteshi se-TV sidlulisela isignali ngaphezu kwesiteshi sayo esinikeziwe esihlanganisa i-Dolst Digital-encoded bitstream. I-TV ehambelana nayo ithola leyo signal, bese idlulisela lo mgwaqo kubha yomsindo ohambisanayo, isamukeli sekhaya yaseshashalazini, noma i-pre preamp / iprosesa esebenzayo noma i-digital optical output noma i- HDMI Audio Return Channel . Ibha yamathuluzi, isamukeli sekhaya yaseshashalazini, noma i-pre preamp / iprosesa bese ikhetha i-bitstream iphinde idlale isignali ekhonjisiwe. Kuye kubha yamathuluzi, isamukeli, i-pre preamp / iprosesa, umsebenzisi angase abe nenketho yokuhlanganisa umphumela weDolby Digital otholiwe ngokucutshungulwa komsindo okwengeziwe.
- Ngokusakaza kwe-intanethi, isevisi, njenge-Netflix, inikeza uhlelo noma i-movie ekhonjiwe ku-Dolby Digital noma ifomethi ehambisana nendawo ezungezile. Uma uthola lokho okuqukethwe usebenzisa umsakazo wezokuxhumana, futhi uxhumeke kumamukeli womdlalo womdlalo usebenzisa i-digital audio connection (optical, coaxial, HDMI), i-bitstream yomsindo ozungezile iyathunyelwa kumamukeli, i-decoded, futhi ithunyelwe nge-amplifier kanye nezikhulumi. Ngokufanayo, uma umsakazo wezokuxhumana axhunyiwe ngqo kwi-TV nge-HDMI, futhi i-TV ixhunywe kumbono womsindo ohambisanayo noma isamukeli sekhaya yaseshashalazini ngokukhishwa komsindo we-digital noma nge-HDMI Audio Return Channel, i-TV izodlula isignali encane nge-TV futhi uye e-soundbar / yaseshashalazini yasendlini yokucubungula nokukhulisa.
- Kwesinye isimo se-intanethi ye-intanethi, ungathola i-Netflix noma amanye amasevisi ngokuqondile nge- Smart TV . Uma kunjalo, i-TV ingakwazi ukudlulisela isignali ye-Dolby Digital encodelwe kumsakazo wesikhulumi, isamukeli sekhaya yaseshashalazini, noma i-pre preamp / iprosesa esebenzisa izindlela ezifana nokuthi i-TV ithola ukusakaza kwesiteshi - nge-digital optical noma i-HDMI Audio Return Channel ukucacisa kanye nanoma iyiphi enye inqubo ekhethiwe yomsebenzisi yokuthokozisa okungeziwe kokulalela.
Okubalulekile
I-encoding ye-Bitstream iyinhlangano yobuchwepheshe obuyinhloko esetshenziselwa ukulalelwayo kwekhaya yaseshashalazini. Ihlinzeka indlela yokudlulisa ulwazi lomsindo ojikelezayo lwedatha phakathi kwedivayisi yomthombo kanye nesamukeli sekhaya yaseshashalazini noma i-AV preamp / prosesa ngaphakathi komkhawulokudonsa omncane usebenzisa izinketho ezihlukahlukene zokuxhumana.