MP4 → M4A

Tahurihia Tō MP4 Tuhinga o mua M4A kōnae ngawari

Tīpakohia ō kōnae

Ka tangohia rānei ā-rānei ōna doke ki konei

Whakahaua: 1 Ka whakawhitinga/ora · Kāore i te whakawhāiti →

Tahurihia kia 1 GB ngā kōnae mō te kore utu, ka taea e ngā kaiwhakamahi Pro te tahuri ki te 100 GB ngā kōnae; Waitohu inaianei

Tukuatu ana

Me pēhea te huri MP4 Tuhinga o mua M4A

Hipanga 1: Tukuatu tō MP4 ngā kōnae mā te whakamahi i te pātene i runga ake nei, mā te tōia me te whakataka rānei.

Hipanga 2: Pāwhiritia te pātene 'Tahuri' hei tīmata i te tahuritanga.

Hipanga 3: Tikiake i tō mea kua tahurihia M4A kōnae

MP4 Tuhinga o mua M4A Ngā Pātai Auau mō te Tahuritanga

He pēhea te tango i te oro mai i tōku MP4 pūranga hei M4A?

Whakataki i te MP4 me te whakarerekētanga o te whakarerekētanga i te rerenga oro, kātahi ka whakakōrerotia ki M4A. Kāore he whakawhitinga ataata tuarua - ka whakakoretia te rererangi ki te āhua o te whakateretanga i te wā kotahi, kia tere ake ai te whakawāteatanga i te whakakōrerotanga katoa. Ko MP4 te ISO/IEC 14496-14, i paerewa i te tau 2001, ā, i puta mai i te āhua o te kāwai pēnei i te QuickTime e whakamahia ana e MOV. Ko te M4A he pūrere MP4 e mau ai te oro anake, ā, ko te mea e whakaputaina ana e iTunes, Apple Music me te taupānga iPhone Voice Memos.

He whakawhitinga te MP4 ki te M4A he porowhita tuarua o te whakawhāiti ngaro?

Heoi, ā, e tika ana te whakarite i te taha. He ngaro nga āhuahira e rua, nā reira ko te M4A encoder e mahi ana mai i te oro, kua puta kētia e tētahi whakawhitinga psychoacoustic, ā, ko ōna whakataunga anō e whakakotahi ana i te tautuhi tuatahi. I te 192 kbps, i runga ake rānei i te hua, he mārama tonu te hua mō te nuinga o te whakarongo. Mēnā kei a koe tētahi māngai kore ngaro i tētahi wāhi, ka whakakōrerotia te M4A mai i tērā, ka ārai katoa i te whakawhitinga rua. Tata tonu ki ia MP4 i te mohoao he ataata H.264 me te oro AAC; kei roto hoki i te kāwai he HEVC, AV1 me VP9. Kei roto i te M4A te AAC i te nuinga o nga take, Apple Lossless rānei (ALAC) ina puta mai i tētahi tāruatanga kore.

Ka taea e au te tohu i te M4A me ngā mōhiohio kaiwaiata me te pūrākau?

Heoi, ā, he whiwhinga tūturu i runga i te MP4, kāore he wāhi e whakawhirinaki ana ki te rokiroki i tētahi o ia. M4A e mau ana i te taitara, te kaitapere, te pūrākau, te tau, te tau rererangi me te toi kāwai i roto i te kāwai anō, kia tika ai te pūranga pūoro me te kore e whakawhiti i te kāwai. Ka pupuri te M4A i ngā metadata āhua iTunes, ngā wāhanga me ngā mahi toi, ā, ko te āhua oro māori i runga i ngā pūrere Apple katoa.

He aha te bitrate oro e whakamahia ana e te M4A?

Ko te bitrate pūmau mō te ngaro M4A ko te 192 kbps, he mārama mō te pūoro. Ka taea e koe te whakahōu ki te 320 kbps (pūoro), 96-128 kbps rānei (whakaaho / podcast / pūranga iti ake). Ka puta te bitrate i roto i ngā kōwhiringa tiketike i mua i te kōwhiri i te tahuri.

Ka ngaro ahau i te āhua o te oro mai i te MP4 ki te M4A?

Mēnā he kore ngaro te M4A (WAV, FLAC), ka tiakina ngā tauira katoa ki te tika. Mēnā he ngaro te M4A (MP3, AAC, OGG, Opus), ka whakawhāiti anō te codec M4A te pūtake oro — i te 192 kbps he mārama te hua mō te nuinga o ngā ihirangi. Ka haere te ngaro → kāore e whakaora ana i ngā taipitopito kua whakakoretia.

E pupuri ana te M4A oro i te mokatere tauira taketake?

E whakawhirinaki ana — 48 kHz te oro i roto i tōna MP4 e noho ana 48 kHz i roto i te M4A huaputa. Mō te pūkōrero CD-burner, te pūkōrero rānei, ka taea e koe te whakamōhio ki te 44.1 kHz mā te whakaroa o te ōrite tauira; He mātauranga SoX-kitenga te tātai.

Ka taea e au te whakawātea i te oro mai i ngā pūranga maha MP4 ki M4A i roto i tētahi rōpū?

He — ka tangohia he pūrākau o ngā pūranga MP4, ā, ka tangohia e tātau te oro i te taha kotahi. Ka whiwhi ngā kaimahi utu nui ake i ngā kaimahi taha kotahi; i runga i te 50-file batch ko tēnei te rerekētanga i waenganui i ngā minu me ngā minu tekau.

Ka tohu te M4A me te taitara / kaitapere / metadata pūranga?

Mēnā ka mau te MP4 i te wāhanga, i te metadata rānei o te rerenga, ka tārua tātau i ngā āpure taitara / kaitapere / pūranga ki roto i te M4A. Mēnā kāore, ka puta mai te M4A kāore i te whakahuahua - hoatu i tētahi kaiwhakawhanake tohu (Mp3tag, Picard) i muri i te whakahuahua mo te whakahuahua ā-wai.

He maha te roa o te whakawātea i te M4A oro mai i te MP4 wā 1?

He tere te whakahua reo + whakahua - i te nuinga o te 5 ki te 15% o te roanga pūtake. Ko te 1-ora MP4 → M4A e whakamutu ana i roto i te 3 ki te 9 min i runga i te pūtautau paerewa; Ka whakaiti ake te whakahua Premium i tēnei mō ngā mahi rōpū.

Ka taea e au te whakawātea i tētahi wāhanga anake o te MP4 oro hei M4A?

Kāore i roto i tēnei utauta — ka tangohia te oro katoa hei M4A, kātahi ka whakamahia te /oro-trim /, /oro-kutter / rānei hei whakaiti i te wāhanga. He tere ake te ara e rua-ki tētahi mahi whakakotahi, ā, ka hoatu ki a koe te mana tika o te taumata-whakamoho.

He tūmataiti te MP4 o ahau i te wā o te whakawāteatanga oro?

He — te tauira anō o te ātetetanga pēneia huringa: kaimahi motuhake, kāore he arotakenga tangata, he tango ā-pūmau i roto i ngā minu o te whakaotitanga. Ko te matapihi tauwhāiti o te tiakitanga i runga i te / ātetetanga/.

He aha te take i noho ai te M4A i te mokowā mārō i reira te MP4 i whai oro?

Tata tonu ki te tīpakonga rerekē i ngā wā katoa: MP4 he maha ngā pūrere orooro, ā, i kōwhiria e te demuxer tētahi rererangi wātea, kore rānei. Ka whakamahia te kōwhiringa "pūrere orooro" hōhonu hei kōwhiri i te rererangi 0, 1, 2 mārama, ki te ūnga rānei i tētahi M4A kāwai e tautoko ana i te huaputa rererangi maha (FLAC, OGG).

MP4

Ka taea e te hōputu ipu MP4 te pupuri i ngā ataata, oro, hauraro, me ngā whakaahua i roto i te kōnae kotahi me te kōpeketanga tino pai.

M4A

M4A Ko te hōputu kōnae ororongo e te piri tata ki MP4. Ka tukuna he kohinga ororongo kounga teitei me te tautoko mo nga metadata, e pai ana mo nga momo tono.