M4A → AIFF

Kāore, ā, e tika ana kia mārama: kāore e taea. Ko te M4A kua whakakoretia kētia ngā taipitopito i te wā o tōna waehere taketake, ā, ko te whakaroa i te mea e noho ana i roto i tētahi AIFF kāore i te ngaro, ka pupuri tonu - kāore anō. He maha ngā wā e nui ake ai te faila, ā, he ōrite ngā pūoro. He mahi tika tonu tēnei i mua i te whakarerekētanga, nā te mea kāore e tāpiri te AIFF i tētahi whakatupuranga tuarua o ngā ahanoa i te wā e kawea atu ai. Ko AIFF te āhua o te whakawhitinga whare taupuni i runga i te macOS, e whakahaere tika ana i te metadata i te WAV noa iho, ā, ka tāurutia ki Logic me Pro Tools. E rua nga mea rerekē e whakawāteatia ana e M4A i muri i tētahi whakaroanga — AAC ngaro me ALAC kore ngaro — ā, kāore te tautoko ā-Apple i te ōrite.

DRM. He pūrere ā-roto o ngā pūranga M4A kua whakawaeheretia e te puna, te pūmanawa rānei i tukuna, ā, kāore e taea te whakawaehere i te oro whakawaeheretia e tētahi kaiwhakarere. Ko ngā mea katoa i whakawāteatia e koe, i whakakōrerotia, i hokona rānei me te kore parenga, ka whakawhiti i te tikanga; kāore e whakawāteatia te hoko ā-whakahaere.

I te nuinga o te wā kāore. M4A e whakakōrerotia ana e ngā mea katoa, tae atu ki ngā wae o te waka me ngā kaiwhakaari pakeke; AIFF e hiahiatia ana he pūmanawa e mōhio ana ki te pūkōrero, ā, kāore i te nuinga o te wā e whai ana i ngā pūrere. Mēnā he pūkōrero waka, he kaiwhakaari whakarerekē rānei te ūnga, he tautohe kaha mō te noho i runga i M4A. He nui tonu te AIFF ki te WAV me te tautoko iti iho i waho o te ao Apple, nō reira he kōwhiringa iti mō te tuaritanga.

Ko te pūmau ko te 192 kbps mō te ngaro AIFF; whakawhitinga mō te kore ngaro AIFF. Whakapae ki te 320 kbps mō te pūoro, 96 kbps rānei mō te reo / podcast. Ko te kōwhiringa e whakawhiti ana i te rahi o te pūranga ki te pono whakarongo; i raro iho i te 96 kbps ka kitea ngā hua o te ngaro i runga i te pūoro.

Mēnā he ngaro te M4A ā, he kore ngaro te AIFF (hei tauira, MP3 → WAV), kāore te AIFF i te pai ake i te M4A — kāore e taea e koe te whakaora i ngā mōhiohio kua whakakoretia. Mēnā he kore ngaro te M4A ā, he ngaro te AIFF, ka whakawhāiti anō te AIFF codec; i te 192 kbps he mārama te hua mō te nuinga o ngā ihirangi.

He — e ako ana te taitara, te kaitapere, te pūrākau, te tau, te tau o te whakataki, me te whakaahuatanga pūrākau mai i te M4A me te tuhi ki te AIFF i reira e tautoko ana te hanga i ngā tohu. Ko ngā ūnga katoa (MP3, AAC, FLAC, OGG) e whakahaere tika ana i ngā tohu; kāore te WAV mārō. Ko AIFF te Apple's Audio Interchange File Format mai i te tau 1988, i hangaia ki runga i te hoahoa porohita IFF ōrite ki te AVI's RIFF.

He — Ka tangohia he pūrākau o ngā pūranga M4A ki roto, ā, ka whakamātautau mātou i a rātou i te whakarara. He nui ake ngā kaimahi whakatata o te Premium, ā, kāore he tauine tauine-whakahaere, nā reira ka oti te rōpū 500-file i roto i ngā minu, kaua ko ngā tekau minu.

Mā te tīpako, ā, — 48 kHz M4A e noho ana 48 kHz i AIFF. Mēnā e hiahiatia ana e koe te whakaiti i te ōritetanga (96 kHz → 44.1 kHz mō te pūkōrero CD), ka hoatu te kōwhiringa tātauira ki te whakawātea ā-whakahaere i te whakawhitinga waehere ōrite.

He — ka hoatu e te kōwhiringa pūnoa-pūnoa te pūnoa ITU-R BS.1770 / EBU R128 ki te AIFF, e ūnga ana ki -14 LUFS (paerewa rererangi), -16 LUFS rānei (paerewa podcast). Ka whai hua ina whakawāteatia ngā whakataki i ngā taumata rerekē.

Ka whakatangitangi te MP3 i ngā wāhi katoa. Ka whakatangitangi te AAC i runga i te Apple, te nuinga o te Android, me te Sonos. Ka whakatangitangi te FLAC i runga i te Sonos me te Android engari kāore i runga i ngā iPod tahi. Ka whakatangitangi te WAV i ngā mea katoa engari he nui rawa. Ko te whakatūtū-whakahaere-whakahaere-whakahaere e kōwhiri ana i tētahi AIFF codec i whakawhāititia ai mō ngā pūrere o tōmu ūnga.

He — e whakarewaina ana ngā pūranga i whakarewaina M4A ki ngā kaimahi motuhake, ā, ka whakakoretia i roto i ngā minu. Kāore anō tātau ki te whakataetae, ki te rokiroki roa, ki te tiritiri rānei i ngā ihirangi oro. Ko te matapihi tautuhi katoa i roto i /privacy/.