Sinthani MP4 ku AAC

Sinthani Yanu MP4 ku AAC zolemba molimbika

Sankhani mafayilo anu

*Mafayilo achotsedwa patatha maola 24

Sinthani mafayilo okwana 1 GB kwaulere, ogwiritsa ntchito Pro amatha kusintha mafayilo okwana 100 GB; Lowani tsopano

Kukweza

Momwe mungasinthire MP4 ku AAC

Gawo 1: Kutumiza wanu MP4 kutengerapo ndi kuchotsa mafayilo pogwiritsa ntchito batani pamwambapa kapena ndi Shift ndi dziko.

Gawo 2: Dinani 'Transform' batani kuti ayambe kusintha.

Gawo 3: Yamba wanu anasintha AAC mafayilo

MP4 ku AAC Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingagwiritse ntchito bwanji audio kuchokera ku MP4 fayilo ngati AAC?

Ikani fayilo ya MP4 ndipo tidzachotsa mndandanda wa audio, kenako tidzasintha ku AAC. Palibe kanema wachiwiri komanso palibe kuwonongeka kwabwino kuposa codec ya AAC.

Kodi fayilo ya AAC imagwiritsa ntchito mtundu uti wa ma bitrate?

Malamulo a AAC ndi 192 kbps (wosawoneka bwino kwa nyimbo). Mukhoza kuwonjezera 320 kbps (audiophile) kapena 96-128 kbps (wokamba / podcast / fayilo yaing'ono). Chosankhacho chimawonekera m'masankho owonjezera.

Kodi ndidzataya mtundu wa audio kuchokera ku MP4 kupita ku AAC?

Ngati AAC ndi mtundu wopanda kuwonongeka (WAV, FLAC), mumakhala ndi zonse zomwe mwapeza. Ngati AAC ndi mtundu wowonongeka (MP3, AAC, OGG), AAC codec imabwezeretsa - mtundu umadalira bitrate ndi ma audio ochokera. Timapanga 192 kbps, zomwe ndizosawoneka bwino kwa zinthu zonse.

Kodi AAC yosanduka imasunga kuchuluka kwa sampling?

Mwa default ndi yemweyo — 48 kHz audio track mu MP4 imakhala 48 kHz mu AAC. Ngati mukufuna 44.1 kHz (CD-quality) kuti mugwirizane ndi osewera oyambirira, zosankha zowonjezera zimaphatikizapo mndandanda wolowetsedwa wa sampling-rate.

Kodi ndingagwiritse ntchito ma audio kuchokera ku MP4 mafayilo ambiri kupita ku AAC m'modzi?

Yesani - chotsani fayilo ya MP4 ndipo tidzatulutsa audio mofanana. Ogwiritsa ntchito Premium amalandira ogwira ntchito ambiri mofanana; pa fayilo ya 50-fayilo iyi ndi kusiyana pakati pa masekondi 90 ndi maola 8.

Kodi fayilo ya AAC idzaphatikizidwa ndi mutu / woimba / album?

Ngati fayilo ya MP4 ili ndi gawo kapena metadata ya stream, timakopera masamba a woimba / mutu / album ku AAC. Ngati sichoncho, fayilo ya AAC siyimayikidwa - kugwiritsa ntchito wolemba tag (Mp3tag, Picard) pambuyo pa kutumiza kunja ngati mukufuna ma tag ochuluka.

Kodi ndi nthawi yayitali bwanji kuti mutenge AAC kuchokera ku fayilo ya MP4?

Kutulutsa kwa audio ndi kosavuta kuposa kubwezeretsa kanema - nthawi zambiri 5-15% ya nthawi yoyambira. 1-hour MP4 → AAC imatha m'maola 3-9 pa standard pipeline.

Kodi ndingagwiritse ntchito gawo limodzi la MP4 audio ngati AAC?

Sichigwira ntchito pa ntchitoyi — chotsani audio yonse monga AAC apa, kenako mugwiritse ntchito /audio-trim/ kapena /audio-cutter/ kuti muchepetse gawo. Njira ya mawindo awiri nthawi zambiri imayenda mofulumira kuposa ntchito yophatikizidwa.

Kodi fayilo yanga MP4 ndi yapadera pamene ndikuchotsa audio?

Inde — mtundu wofanana wa kuteteza deta monga pazosintha zonse: ogwira ntchito osiyana, kuchotsa kwachidziwitso m'maola ochepa, palibe kuyankha kwa munthu pazomwe zili.

N'chifukwa chiyani fayilo yanga AAC ili ndi zigawo zosadziwika?

Ma gaps opanda mawu amatanthauza kuti fayilo ya MP4 ili ndi ma track ambiri a audio ndipo tasankha ma stream opanda pake. Pezani njira yowonjezera ya "audio stream" kuti musankhe ma stream 0, 1, etc., kapena kuwonjezeranso ma stream onse ku AAC yokhala ndi ma track ambiri ngati AAC ikugwirizana nayo.

Kodi AAC yotulutsa ikhoza kukhala stereo / mono / 5.1?

Chithunzi cha sitima chimasunga kuchokera ku MP4 mwa default - 5.1 MP4 chimatulutsa 5.1 AAC komwe codec imathandizira (AAC, FLAC, OGG). Mukhoza kuletsa stereo kapena mono pogwiritsa ntchito njira yowonjezera-kanali, yothandiza pa ntchito ya podcast.

Kodi AAC yosakira imasewera pa iPhone / Android / stereo yagalimoto?

MP3 imasewera kulikonse. AAC / M4A imasewera pa Apple ndi ambiri a Android. OGG / Opus amafuna wosewera waposachedwa pa iOS. Zosankha zowonjezera zimasonyeza "chida" choyamba chomwe chimasankha AAC codec yomwe ingakhale yoyenera kusewera pazolinga zanu.