Computers, Software
Yuav ua li cas characterizes lub WMA hom ntawv thiab dab tsi yog nws?
Muaj coob tus neeg tseem nco ntsoov lub hnub thaum lub ntsiab qhov kev pab cuam rau saib video on lub computer yog ib tug txheej txheem "Media neeg uas ua ntawv". Functionality, nws tsis ci, thiab friendliness mus rau inexperienced neeg siv puas tau tsis txawv. Tsuas yog nyob rau hauv 2000 , Microsoft qhia rau cov pej xeem rau lub qhov rais Media neeg uas ua ntawv 7 daim ntawv thov.
Nyob rau hauv tas li ntawd, lawv txheem players nyob rau ntawm lub sij hawm txaus siab rau nws tsis dhau txaus thiab yog li ntawd sai poob chaw. Raws li ib tug "neeg lub" lwm thiab WMA hom yog tsim, uas peb muaj lawm pib los ntawm sib ntsib los yog crook, mus rau "laub" nyob rau hauv lub qhov rais OS. Cov kev vam meej ntawm xws li ib tug xyaum tsis txaus, thiab tsis kawg lub luag hauj lwm nyob rau hauv no ua si kev nom kev tswv nws tus kheej Redmondskoy lub tuam txhab tswj.
Pib nrog lub fact tias lawv tau ua WMA hom ntawv yog kiag li proprietary - kaw rau cov ceevxwm, kev hloov kho thiab kev siv ntawm peb-tog cov khoom. Thiab yog hais tias lawv "chaw ua hauj lwm", qhov no muab zoo ntxim (tom qab tag nrho, lub monopoly tsis tau tso tseg), ces nkag mus rau kev ua lag luam ntawm multimedia tawm tswv yim, thiab twb muaj neeg coob los ntawm players, nws yog frankly ua dag.
Txawm li cas los, tus yam ntxwv ntawm lub WMA (Qhov rai Media Suab) tsis yog li ntawd phem. Yog li, lub chaw tsim tshuaj paus neeg pab leg ntaubntawv hais tias nws compressed music ntaub ntawv nrog ib tug bitrate ntawm 160 kbit / s nyob rau hauv cov nqe lus ntawm zoo nyob rau hauv tsis muaj txoj kev ua tsis tau zoo rau lub MP3 ntaub ntawv rau lub tib lub sij hawm nyob rau hauv 256 kbit / s. Muaj teeb meem daim ntawv qhia, thiab nws cov thawj version ho tsis txhawb ib tug ntau dua me ntsis nqi, ua lub WMA hom ntawv yog tsis heev nrov nyob rau hauv audiophile ib puag ncig. Nyob rau hauv tas li ntawd, thaum lub suab zaus saum toj no 15 kHz tag nrho cov "ntxiv" kev khuv leej truncated, li ntawd, uas hais txog tej yam "raws li lub CD" yuav tsis muab suav hais tias.
Peb yuav tsum them tribute rau Microsoft: noj kom zoo dua ntawm nws yuav luag unlimited kev pab, lawv yuav tsum pab txhawb qhov kev siv ntawm lawv cov offspring yuav luag tag nrho cov "hlau" thiab software players, yog li ntawd niaj hnub no muaj lub siab xav hloov WMA ntaub ntawv rau MP3 rau playback nws tau poob nws qhov tseeb nyob rau hauv koj lub neeg uas ua ntawv. Ntxiv mus, los ntawm cov nyob deb 1995, thaum thawj version ntawm nws codec "paub tab txaus" rau nws cuaj thawj nyob rau hauv uas muaj ntau yam ntawm kev ua yuam kev ntawm yav dhau los tej teeb meem tau raug tsau.
Nyob rau hauv kev, lub suab zoo yog zoo heev ntau zog, nws yog ua tau ob-pass VBR-encoding, uas cia li txhais "mus ib txhis tsis nco qab lawm» WMA rau tawm sufficiently muaj zog players nyob rau hauv lub lag luam ntawm cov suab. Nyob rau hauv tas li ntawd, mas acclaimed thiab nrov Winamp neeg uas ua ntawv tau "nyiag" nyob rau hauv nws lub suab seev CD, uas hu rau xwb out_wma.dll plugin.
Yog li, txiav txim zoo heev los hloov WMA rau MP3 hom ntawv tsis yog, vim hais tias ua tsaug rau lub siab ntawm Microsoft codec rau ib tug par nrog sib tw hom kev txhawb los ntawm tag nrho cov pab kiag li lawm thiab cov kev pab cuam rau ua si cov suab paj nruag. Nyob rau hauv tas li ntawd, raws li ib tug tshwm sim ntawm cov conversion of lub suab zoo yuav qub zus muaj ho, nws yog tsis zoo li mus thov koj.
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