FLAC txhais
Kev Tsis Tsim Nyog Tsis Pub Dawb Codec yog ib qho qauv txheej txheem uas tsim los ntawm XIPh.org Foundation koom tes uas txhawb nqa cov ntaub ntawv tawm suab uas yog zoo tib yam rau cov ntaub ntawv tseem ceeb. Cov ntaub ntawv FLAC-encoded, uas feem ntau nqa lub .flac ncua ntxiv, yog qhov tseem ceeb rau kev muaj kev qhib dav qhib qhov chaw xws li cov ntaub ntawv me me thiab cov sijhawm nrawm decoding.
Cov ntaub ntawv FLAC nrov heev hauv qhov chaw tsis muaj suab thaj. Nyob rau digital audio, ib tus poob codec yog ib qho uas tsis poob cov cim tseem ceeb ntawm cov suab paj nruag thawj zaug thaum lub sij hawm ua ntaub ntawv-compression. Muaj ntau lub suab codecs siv lossy compression algorithms-piv txwv li, lub MP3 thiab Windows Media Audio standards-uas poob qee cov kev cuam tshuam ntawm lub sij hawm ua haujlwm.
Ripping Music CDs
Qhov tseeb, muaj ntau tus neeg siv xav rov qab lawv cov CDs (CD ripping ) kom siv FLAC los tuav lub suab tsis yog siv lub hom phiaj los xij . Ua qhov no ua kom paub tseeb tias yog qhov tseem ceeb los yog ploj lawm, ces ib daim qauv zoo meej tuaj yeem tsim cov ntaub ntawv teev npe FLAC yav dhau los.
Tawm ntawm tag nrho cov suab tawm suab tsis muaj, FLAC yog kab lus feem ntau nrov nyob rau hnub no. Qhov tseeb, qee qhov HD music pab tam sim no muaj kev lem hauv hom ntawv no rau.
Ripping lub suab CD rau FLAC feem ntau ua cov ntaub ntawv nrog qhov sib piv ntawm feem ntau ntawm 30 feem pua thiab 50 feem pua. Vim tias cov hom ntawv tsis zoo, qee cov tib neeg kuj xav khaws lawv lub tsev qiv ntawv suab paj nruag raws li FLAC cov ntaub ntawv tawm rau sab nraud cia tawm thiab hloov cov ntaub ntawv los ntawm cov ntaub ntawv ( MP3 , AAC , WMA , thiab lwm yam) thaum xav tau - piv txwv, neeg uas ua ntawv lossis lwm hom khoom siv tau.
FLAC Tus Cwj Pwm
Tus txheej txheem FLAC yog kev txhawb siab rau txhua qhov loj operating systems, suav nrog Windows 10, macOS High Sierra thiab sab saum toj, feem coob ntawm Linux, Android 3.1 thiab tshiab, thiab iOS no 11 thiab tshiab dua.
Cov ntaub ntawv FLAC txhawb kev teev npe duab, kos duab kos duab, thiab ceev nrooj nrhiav cov ntsiab lus. Vim tias nws yog ib hom ntawv tsis suav nrog kev tso cai royalty-free ntawm nws cov tub ntxhais technology, FLAC tshwj xeeb tshaj yog nrov nrog cov neeg tsim khoom qhib. Hauv particular, FLAC's ceev streaming thiab seev suab piv rau lwm hom ntawv tsim nws haum rau hauv internet playback.
Los ntawm cov kev xav, lub FLAC encoder txhawb rau:
- Sampling nqi ntawm 1 Hz rau 65,545 Hz hauv 1 Hz cov kauj ruam, los yog 10 Hz rau 655,350 Hz hauv 10 Hz cov kauj ruam, siv ntawm ib thiab yim khiav
- PCM me ntsis kev daws teeb meem ntawm 4 mus rau 24 cov khoom rau ib qho qauv (txawm tias tsuas tsau-point, thiab tsis ntab-taw tes, kuaj tau txais kev txhawb)
FLAC kev txwv
Tus thawj drawback rau cov ntaub ntawv FLAC yog tias feem ntau kho vajtse tsis natively yug nws. Txawm hais tias lub computer thiab smartphone operating systems tau pib txhawb FLAC, Kua tsis txhawb nws kom txog rau thaum xyoo 2017 thiab Microsoft txog rau xyoo 2016-txawm qhov tseeb tias cov codec twb tso tawm hauv xyoo 2001. Cov neeg siv khoom kho khoom feem ntau tsis txhawb FLAC, tab sis-ntau hom ntawv xws li MP3 lossis WMA.
Ib qho laj thawj hauv FLAC tej zaum yuav muaj kev lag luam qeeb qeeb qeeb, txawm tias nws yog ib qho tseem ceeb raws li tus txheej txheem ntawm kev ywj pheej, yog tias nws tsis txhawb cov kev muaj peev xwm siv digital-rights. Cov ntaub ntawv FLAC yog tsim los ntawm kev tsim, tsis muaj kev cuam tshuam los ntawm software daim ntawv tso cai, uas tau txwv tsis pub nws siv rau kev lag luam streaming cov lag luam thiab cov lag luam suab paj nruag ua lag luam.