Piav tawm lub tswv yim Blu-txoj sab ci

Blu-duab tshav los nrog lub lossless zoo. Yog hais tias koj muaj obsessed los ntawm cov kev kawm txawj zoo suab, koj yuav tau twv yuav raug hu hlub Blu-duab tshav suab. Nws yog cov kua uas txiav txim siab tau zoo dua. Lossless suab yuav coj tuaj rau ntawm qhov chaw rau duab tshav Blu disc tons, tiam sis qhov no yog obviously tsis muaj teeb meem rau BD25 (25GB) thiab BD50 (50GB). Blu-duab tshav suab li no muaj rau cov suab ntsiag to 7.1 channel HD xwv koj thiaj paub qhov sib txawv li cas txawm tias koj tsis muaj ib tug piv tawm qhov chaw los yog tsev theatre lawv.

Tawm lub tswv yim Blu-txoj sab ci

DVD disc tau suab zoo zoo los ntawm kev siv kev tso suab Dolby surrounds, Dolby cov 5.1 los yog DTS (cov Theatre System). Blu-duab tshav disc kuj txhawb cov lossy lub tawm tswv yim, tab sis yog lossless suab kuj zoo dua DVD zoo suab. Yog mas peb lossless lub codecs siv Blu-duab tshav disc: PCM, Dolby TrueHD, thiab DTS-HD MA.

PCM

PCM, luv rau mem tes Code tes taws los piav, kuj hu ua LPCM, tawm PCM los yog Uncompressed. Nws encodes cov tswv yeej tsis muaj compression. Vim li no, nws yuav siv sij hawm tag loj Blu txoj sab ci disc chaw. Tiam sis, nws yog peb fronts, plaub surround thiab ib tug tsawg zaus nyhuv channel tsawg dua cov nqi zauv thiab qhov tob hauv ntsis.

Dolby TrueHD

Piv rau PCM, Dolby TrueHD muab ua tib zoo tiamsis yuav siv sij hawm tsawg dua qhov chaw rau duab tshav Blu disc. Tsis zoo li PCM lub ntsis qhov twg, nws yog ib tug ntsis kuj tsis paub meej npaum li cas codec, uas siv long-term 8 raws 24-ntsis/96 kHz suab. Dolby TrueHD yog tus Individual lub codec ntawm HD DVD. Txawm tias feem ntau cov discs Blu-duab tshav yuav encode suab nrog cov codec no, nws yog qhov nrov tsawg hnub no dua DTS-HD tswv suab.

DTS-HD tswv suab

Zoo li Dolby TrueHD, DTS-HD yuav siv sij hawm tuaj tsawg chaw rau ib Blu-duab tshav disc dua uncompressed PCM. DTS-HD muaj ob tug kwj: ib qho kev daws teeb meem loj tab sis lossy DTS teev thiab ib suab DTS-HD tswv rau khiav uas yog lossless. Vim tswv DTS-HD suab hais ntxiv mus tso npe, tias feem ntau zoo li hauv Blu-duab tshav players loj kawg. Yog hais tias koj muaj ib qhov suab system txawv, koj yuav xaiv tus coj Blu-duab tshav disc nrog tswv DTS-HD suab. Txwv tsis pub, tus ascas DTS-HD suab yuav tsum tejzaum nws tom PCM los yog Dolby xwb cov ua ntej yuav xa mus rau lub receiver.