MP4 → OGG

Guqula Eyakho MP4 kuya OGG amafayela kalula

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Ukulayisha

Indlela yokuguqula MP4 kuya OGG

Isinyathelo 1: Layisha eyakho MP4 amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

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

Isinyathelo 3: Landa i-version yakho OGG amafayela

MP4 kuya OGG Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiyikhipha kanjani i-audio track kusuka ku-MP4 njenge-OGG?

Layisha phezulu ihele MP4 futhi umguquli ususa umsindo osuka kwi-MP4, bese uguqula ikhodi ibe yi-OGG. Amafreyimu wevidiyo asuswa — akukho sikhathi sevidiyo sesibili, akukho phutha lomgangatho ngaphandle kokukhishwa kwe-OGG codec. MP4 yi ISO/IEC 14496-14, ejwayelekile ngo-2001 futhi ivela ku-QuickTime box layout MOV isebenzisa. OGG yi-Xiph.Org container, ehlala igcina umsindo we-Vorbis, yakhiwa ngo-2000 njengenye indlela engavunyelwanga ye-MP3.

Ingabe ukushintsha MP4 kuya ku OGG kuyingxenye yesithathu yokucindezela okulahlekile?

Yebo, futhi kufanelekile ukuhlela. Izifomethi zombili ziyi-lossy, ngakho-ke i-OGG 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-OGG kusuka kulo kunciphisa ukudlula okuphindiwe ngokuphelele. Kuyinto encane kakhulu ukuthi wonke ama-MP4 aphilayo ayizividiyo ze-H.264 ezinesandi se-AAC; isiqoqi sigcina ngokusemthethweni i-HEVC, AV1 ne-VP9. I-Vorbis ngaphakathi kwe-OGG ilahlekile futhi isebenzisa i-bitrate eguqukayo ngokuzenzakalela, ngakho-ke ukhwalithi ibekwe njengezinga ngaphandle kwe-kbps eqinile.

Ingabe ngiyiphawula i OGG ngemininingwane yomuntu odlalayo ne-album?

Yebo, futhi kuyinzuzo engokoqobo ngaphezulu kwe MP4, engeke ikwazi ukugcinwa kuphi naphi. OGG ifaka isihloko, umculi, i-album, unyaka, inani le-track kanye ne-cover art efakwe ngaphakathi kwebhokisi, ngakho-ke i-library yomculo ifaka ngokulungile ngaphandle kokufaka isandla. I-OGG Vorbis ishaya i-MP3 nge-bitrate elinganayo futhi ayihambisani nezindleko zokugunyazwa, ngakho-ke ama-engine wemidlalo kanye nesofthiwe yomthombo ovulekile yasebenzisana nayo.

Ingabe i-OGG izodlala emoto yami noma ku-hardware edala?

Ngokuvamile akunjalo. MP4 i-decoded yinoma yini, kufaka phakathi izimoto eziphezulu nezidlali ezikhulu; OGG idinga isofthiwe eyazi i-codec, esizohlala i-hardware ehlala ikhona. Uma indawo esiya kuyo imoto ye-stereo noma umdlali ophathekayo, lokhu kuyisinqumo esiqinile sokuhlala ku MP4. OGG inezinsizakusebenza ezincane — amastereo wemoto, ama-iPods adala kanye nama-TV amaningi ngeke abone ifayela ngaso sonke isikhathi.

Yiyiphi i-track yomsindo ekhishwayo uma MP4 yami iqukethe eziningi?

Ngephutha umsindo 0 (umsindo wokuqala, ngokuvamile umsindo omkhulu). Uma MP4 wakho ufaka umlayezo, ama-dubs, noma umsindo ochazayo kuma-tracks angeziwe, umkhethi othuthukisiwe "umsindo" ukuvumela ukuthi ukhethe 1, 2, 3... ngokucacile. Uhlu lwe-track lubonisa ukufinyelela kokubuka kuqala ukuze ungakhetha ngokuzifihla.

Ihele OGG lisebenzisa i-bitrate enjani?

Iphutha OGG i-bitrate yi-192 kbps (icacile kuma-earphones amaningi). Nciphisa ku-320 kbps nge-audiophile output, noma 96-128 kbps ngezwi/podcast lapho ihele elincane liyisisekelo. Ama-OGG angeke alahlekile (WAV, FLAC) agweme ukumiswa kwe-bitrate futhi agcine yonke isampula.

Ingabe ukusuka ku MP4 kuya ku OGG kuzonciphisa ubunjani bomsindo wami?

Uma i OGG ifomethi ingekho lutho (WAV, FLAC, ALAC), yonke isampula yangempela igcinwa. Uma i OGG ingekho lutho (MP3, AAC, OGG, Opus), i-codec icindezela futhi — ku-192 kbps ushintsho alukwazi ukulizwa kuningi kwezithameli; ku-96 kbps ungalizwa ama-cymbals noma ama-sibilans abandayo. I-MP4 i Container ayinaso isikhundla kulolu hlelo — ukumiswa kwe-codec kuphela okubalulekile.

Ingabe i-OGG ekhishwayo igcina i-MP4 isilinganiso sesampula?

Ngokungagqibekanga yebo — 48 kHz MP4 umsindo ushintsha ube 48 kHz OGG umsindo, 44.1 kHz ushintsha ube 44.1 kHz. Uma ufuna ukuncipha kwesampula ukuze kusebenze (isibonelo 96 kHz studio masters kuya ku 44.1 kHz CD-quality OGG) isampula-rate dropdown yenza lokhu ngekhwalithi ephezulu yokusatshalaliswa kabusha.

Ingabe ngingakwazi ukukhishwa kwe OGG umsindo kusuka kusibaya sehele MP4?

Yebo — susa isibaya se MP4 amafayela endaweni yokulayisha futhi siqhube ukukhishwa ngokufanayo. I-Premium ithola abasebenzi abafanayo abaningi; ku-100-file batch (uhlelo lwemiculo-video olujwayelekile) lokhu kuyinto ehlukile phakathi kwamasekondi angama-90 namaminithi angama-8.

Ingabe kuthatha isikhathi esingakanani ukukhishwa kwe OGG kusuka ku-MP4 wehora elilodwa?

Umsindo demux + transcode usebenza ngokushesha kakhulu kunakhodi yevidiyo - ngokuvamile 5-15% yesikhathi somthombo. Ihora le-1 MP4 -> OGG liphele ngemizuzu engu-3-9 ku-pipeline ejwayelekile. Uma i-OGG codec ifana ne-source codec esekwi-MP4 (ejwayelekile ye-AAC ngaphakathi kwe-MKV / MP4), iyi-remux ecacile futhi isebenza ngemizuzu.

Ingabe ihele OGG lifaka isihloko / umculi / amathegi we-albhamu?

Uma ihele MP4 ligcina i-stream metadata (umculi, isihloko, i-album), sikopa lezi zindawo kuOGG isitoreji lapho ifomu lixhasa amathegi. ID3v2 (MP3), amazwana we-Vorbis (OGG, FLAC), ama-MP4 atoms (AAC / M4A), RIFF INFO (WAV) wonke abhalwe. Ukungabi nathegi MP4 kwenza OGG — sebenzisa i-Mp3tag noma i-Picard emva-kwe-ukukhishwa ukuze uthuthukise.

Ingabe MP4 yami imfihlo ngesikhathi sokukhipha umsindo?

Yebo — imodeli yobumfihlo efanayo nezo zonke iziguqulo. Umsuka MP4 nesokudla OGG zicutshungulwa kubasebenzi abahlukanisiwe futhi zicishwe ngaphakathi kwemizuzu. Asikwazi ukudlala, ukugcina, noma ukuhlanganisa okuqukethwe. Bona /privacy/.