AMR → M4A

Chinja Yako AMR kuti M4A mafaira pasina simba

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Kuisa

Maitiro ekushandura AMR kuti M4A

Danho 1: Isa yako AMR mafaira uchishandisa bhatani riri pamusoro kana nekudhonza nekudonhedza.

Danho rechipiri: Dzvanya bhatani rekuti 'Convert' kuti utange kushandura.

Danho rechitatu: Dhawunirodha yako yakashandurwa M4A mafaira

AMR kuti M4A Mibvunzo Inowanzo bvunzwa Nezvekuchinja

Ndeipi bitrate iyo iyo M4A faira ichashandisa?

A lossy M4A encoded at 192 kbps by default. The Audio Quality setting also offers 320 kbps for the best quality and 128 kbps for a smaller file. A lossless M4A (WAV, FLAC) ignores the bitrate and keeps every sample.

Kushandura AMR kuenda ku M4A ndeimwe yekupedzisira rondedzero yekumanikidza kwekumanikidza?

Yeah, uye zvinokosha kutarisira. Mafomati maviri ari kushaya, saka encoder M4A ari kushanda kubva kune audio iyo yaive yapfuura ne psychoacoustic pass, uye pfungwa dzayo dzinoumba yekutanga seti. Pa 192 kbps kana kupfuura, iyo mhinduro ichiri yakajeka kune vazhinji vanonzwa. Kana iwe uine master isina kushaya chero kupi, encoding the M4A kubva pane inodzivirira double pass zvakakwana. AMR i narrowband speech codec ichiita pakati pe4.75 ne12.2 kbps, ichifananidza nevanhu vanotaura, kwete nezvose zvinotaurwa nevanhu. An M4A iine AAC mumamiriro ezvinhu akawanda, kana Apple Lossless (ALAC) apo yakaita kubva ku lossless kurova.

Ndinogona here kuisa zita remutambi kana realbum paM4A?

Ndinoda, uye ndeimwe yechokwadi kubudirira kupfuura AMR, iyo haina kuchengeta chero chinhu. M4A inotakura zita, muimbi, album, gore, nhamba yemugwagwa uye inopinda mufananidzo wechidzitiro mubhokisi, saka library yemuvhimi inoisa zvakakwana pasina manual pass. M4A inoita kuti metadata, mabhuku, uye maartist arambe aripo, uye ndiyo audio format inoshandiswa neApple.

Nei mutauro wemutauro unonzwa sewevakadzi munguva iyi?

Nekuti imwe nzvimbo yacho inonzi codec yechitaura kupfuura codec yechirongwa chemuvhi. Inoratidza pfungwa dzevanhu uye inobvisa zvese zviri kunze kwebandwidth yefoni, izvo zvinokosha kana uchida kutumira meseji uye zvinokuvadza kana uchida kutumira chero chinhu chine mainstruments. Kuchinjana kwacho hakugone kudzosera mafrequencies akaipa — havana kunyorwa mukodzero yekutanga. AMR inoravira ndangariro: 8 kHz bandwidth yake inoravira zvese zviri pamusoro pefoni frequencies, uye hapana mari yekudzokorora-kunyora zvinozoidzosera.

Kubva pa AMR kuenda pa M4A kunoderedza sei kunaka kwezwi rangu?

Kana AMR iri nematambudziko uye M4A iri pasina matambudziko (e.g. MP3 → WAV), M4A haina kuipa kupfuura AMR — haugone kudzosa ruzivo rwakaiswa pasi. Kana AMR iri nematambudziko uye M4A iri nematambudziko, M4A codec inodzosera kumanikidza; pa192 kbps, iyo mhinduro inoratidza zvirimo zvakawanda.

Ndinogona kushandura mazana e AMR mafaera kuita M4A?

Zvimwe faira muimwe basa vanofanira kubhadharwa chirongwa. Free kushandisa ndeimwe faira per conversion, imwe conversion paawa. Pachirongwa chakabhadharwa unogona kuwedzera akawanda faira kune imwe basa, wobva warodha pasi chero chikonzero pamwechete kana vese vavo muZIP.

I M4A ichachengeta iyo imwechete sampling rate se AMR?

Zviri pachena kuti hapana — 48 kHz AMR inoramba 48 kHz mu M4A. Kana iwe uchida kushambadza pasi kuti zvive zvakaenzana (96 kHz → 44.1 kHz kune CD kurodha), sarudzo ye sampling-rate inoshandisa kushambadzazve kwemhando yepamusoro mune imwe encoding pass.

Ndinogona here kushandura AMR kuenda kuM4A?

Hapana mune iyi nhanho. The converter ane hapana loudness kuiswa uye anosiya chiyero sezvairi. Kutiwo kunze mutauro, kuenderera M4A yakamisikidzwa kuburikidza a Normalize chirongwa paIndaneti.

Ndinogona here kutamba M4A yangu pafoni yemotokari, iPod, uye Sonos?

MP3 inotamba zvakakwana. AAC inotamba paApple zvinoshandiswa, akawanda Android mafoni uye Sonos. FLAC inotamba pa Sonos uye Android asi kwete pa iPods, uye WAV inotamba pazvinenge zvese asi zvinoita mafile akakura. Hapana zvirongwa zvekushandisa zvinoiswa pawebhusaiti iyi, saka sarudza chinangwa chemufananidzo chaunofarira. M4A anochengeta maviri zvakasiyana zvinhu pamberi imwe kusvikira — lossy AAC uye lossless ALAC — uye kwete-Apple hardware rutsigiro hachisi chakafanana.

Ndiani anochengeta AMR faira rangu kana ndichishandura kuita M4A?

Yes. Uploaded AMR mafaera anogadziriswa pazvirongwa zvedu zvekushandura, hapana munhu anoongorora iwo, uye havazove nenguva yekugoverana. Upload uye yakashandurwa M4A vaviri vanobvisa otomatiki nezve 24 hrs mushure mekushandurwa, izvo zvinopa nguva yekurodha pasi iyo result. See /privacy/ for the full policy.

AMR

AMR (Adaptive Multi-Rate) iodhiyo yekumanikidza fomati yakagadziridzwa yekutaura kodhi. Inowanzoshandiswa mumafoni ekurekodha inzwi uye kutamba zvakare.

M4A

M4A iodhiyo faira fomati ine hukama neMP4. Iyo inopa yepamusoro-mhando yekutsikirira nerutsigiro rwemetadata, ichiita kuti ive yakakodzera kune akasiyana maapplication.