WebM → MP2

Guqula Eyakho WebM kuya MP2 amafayela kalula

Khetha amafayela akho

noma cindezela bese ususa amafayela akho lapha

I-Free Plan: 1 Ukushintsha/ihora · Iya ngaphandle komkhawulo →

Guqula amafayela afinyelela ku-1 GB mahhala, abasebenzisi be-Pro bangaguqula amafayela afinyelela ku-100 GB; Bhalisa manje

Ukulayisha

Indlela yokuguqula WebM kuya MP2

Isinyathelo 1: Layisha eyakho WebM amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

Isinyathelo 2: Chofoza inkinobho ethi 'Guqula' ukuze uqale ukuguqulwa.

Isinyathelo 3: Landa i-version yakho MP2 amafayela

WebM kuya MP2 Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiyikhipha kanjani umsindo kusuka kuhele lami WebM njenge MP2?

Layisha phezulu ihele WebM futhi umguquli ukhipha umsindo, bese uguqula ikhodi liyi MP2. Akukho sikhathi sevidiyo sesibili - umsindo obonakalayo ususwa ngokushesha ngakho-ke ukukhishwa kusheshe kakhulu kunalokho okuphelele kokuphinde uguqule ikhodi. I-WebM iyingxenye eqinile ye-Matroska eshicilelwe yi-Google ngo-2010 ekhethekile ekubeni yividiyo ye-HTML5 equkethwe ngaphandle kwe-royalty. MP2 yi MPEG-1 Audio Layer II, i-layer edlule i-MP3 futhi yabe yi-audio standard ye-DVB ne-DAB broadcasting.

Ingabe ukushintsha WebM kuya ku MP2 kuyingxenye yesithathu yokucindezela okulahlekile?

Yebo, futhi kufanelekile ukuhlela. Izifomethi zombili ziyi-lossy, ngakho-ke i-MP2 encoder isebenza kusuka kumsindo osele udlulele engxenyeni eyodwa ye-psychoacoustic, futhi iziphakamiso zayo zihlanganisa isiqephu sokuqala. Ku-192 kbps noma ngaphezulu, imiphumela ihlala icacile kakhulu. Uma une-lossless master nganoma yikuphi, uku-encoding i-MP2 kusuka kulo kunciphisa ukudlula okuphindiwe ngokuphelele. WebM idinga ukucophelela: VP8 noma VP9 ividiyo (AV1 manje) nge Vorbis noma Opus umsindo, futhi akukho okuthile okuningi. MP2 ilahlekelwa yinto kodwa isebenzisa isihlungi esilula kunaso iMP3, isebenza nge 192 kuya ku 384 kbps.

Yini i-bitrate yomsindo osetshenziswa yi-MP2 ekhishwayo?

Izinga le-bit elimiselwe le-lossy MP2 yi-192 kbps, elicacile kumculo. Ungashintsha ufike ku-320 kbps (audiophile) noma 96-128 kbps (ubizo / ipodcast / ifayela elincane). Izinga le-bit eliphansi livela ezinketho eziphezulu ngaphambi kokuba ucofe uguqule.

Ingabe ngizolahlekelwa ubunjani besandi uma ngisuka ku WebM kuya ku MP2?

Uma MP2 ingekho lutho (WAV, FLAC), yonke isampula igcinwa ngokugcwele. Uma MP2 ingekho lutho (MP3, AAC, OGG, Opus), i-MP2 codec icindezela kabusha umsuka womsindo — ku-192 kbps imiphumela icacile cishe kuzo zonke izithako. Ukuya kwe-nothing → akukho lutho akugcini nje ngokubuyisela imininingwane ekhishwe.

Ingabe umsindo MP2 ugcina isilinganiso sokuqala sesampula?

Ngephutha yebo — 48 kHz umsindo ku WebM wakho uhlala 48 kHz ku MP2 kuphuma. Ukukhuphula i-CD noma ukuhambisana nomdlali odala ungakhuphula isampula ku-44.1 kHz ngesampula-rate dropdown; isampula ephindayo isezingeni eliphakeme le-SoX.

Ingabe ngizokhipha umsindo kusuka ku WebM amafayela amaningi kuya ku MP2 ngeqembu elilodwa?

Yebo — susa ifolda ye WebM amafayela futhi sizokhipha umsindo ngokufanayo. Abasebenzisi abaphezulu bathola abasebenzi abafanayo; kuhele olune-50-batches lokhu kuyinto ehlukile phakathi kwemizuzu emihlanu nemizuzu eyisithupha.

Ingabe i-MP2 izophawulwa ngesihloko / umculi / i-album metadata?

Uma i WebM ithatha isiqephu noma i-stream metadata, sikopa isihloko / umculi / ama-album ama-fields kwi-MP2 container. Uma kungenjalo, i-MP2 iphuma ingaphawuliwe — sebenzisa umhleli wesihloko (Mp3tag, Picard) ngemuva kokuthumela ngaphandle ukuze uphawulwe ngokunethezeka.

Ingabe kuthatha isikhathi esingakanani ukukhishwa kwe MP2 umsindo kusuka ku-WebM wehora elilodwa?

Umsindo demux + ukukopela kushesha — 5 kuya ku-15% yesikhathi somthombo. Ihora le-1 WebM → MP2 liphele ngemizuzu engu-3 kuya ku-9 ku-pipeline ejwayelekile; i-Premium parallelism isusa lokhu ngaphezu kwemisebenzi yeqembu.

Ingabe ngizokhipha kuphela isigaba se WebM somsindo njenge MP2?

Akunalesi sisetshenziswa ngokuqondile — khipha umsindo wonke njenge MP2, bese usebenzisa /audio-trim/ noma /audio-cutter/ ukucisha inqwaba. Indlela yezinhlangothi ezimbili ivame ukuba isheshe kunalokho okwenziwayo futhi ikunikeza ukulawula okucacile kwe-waveform-level.

Ingabe ihele lami WebM liyimfihlo ngesikhathi sokukhipha umsindo?

Yebo - imodeli yobumfihlo efanayo njengezo zonke iziguqulo: abasebenzi abahlukanisiwe, akukho kuhlolwa komuntu, ukususwa okuzenzakalelayo ngaphakathi kwemizuzu yokuqedwa. Ifasitela lokugcinwa okuningiliziwe ku /privacy/.

Kungani ihele MP2 linezingcindezi ezingenalutho lapho i WebM ikhona umsindo?

Kuyinto evamile ukukhethwa kwe-stream engalungile: WebM iqukethe ama-tracks omsindo amaningi futhi i-demuxer ikhetha umsindo ongenalutho noma osiza. Sebenzisa isikhethi esithuthukisiwe "i-stream yomsindo" ukukhetha umsindo 0, 1, 2 ngokucacile, noma ubeke i-MP2 ibhokisi elixhasa i-multi-track output (FLAC, OGG).

Ingabe ngigcina i-MP2 njenge-stereo, mono, noma i-5.1 surround?

Uhlelo lwesixhumi lugcinwa kusuka ku WebM ngokuzenzakalela — 5.1 WebM kukhiqiza 5.1 MP2 uma i-MP2 codec ixhasa lokhu (AAC, FLAC, OGG, Opus). Ukhetho lokuxuba phezulu lucindezela i-stereo noma i-mono — lusetshenziswa kumapodcast ahamba kahle lapho amabhayela ajikelezayo elahlekile i-bitrate.