M4A → WAV

Kāore, ā, e tika ana kia mārama: kāore e taea. Ko te M4A kua whakakoretia te taipitopito i te wā o tōna waehere taketake, ā, ko te whakaroa i te mea e noho ana i roto i tētahi WAV kāore i te ngaro, ka pupuri tonu i taua mea - 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 WAV i tētahi whakatupuranga tuarua o ngā ahanoa i te wā e kawea atu ai. Ko te WAV te āhua tika mō te whakahua, te whakahauhau me te pūranga, nā te mea ka taea te whakakōrero anō i ētahi wā me te kore e whakatōpū i ngā ahanoa. 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.

Kāore i te tīariari. M4A e mau ana i tētahi kōwae metadata tika, engari WAV kāore he wāhi paerewa mō te kaitapere, pūrākau, tau rererangi, toi rānei, nā reira ka whakawāteatia ngā tohu i te kore e whakawāteatia. Whakataki te M4A hei tārua tohu, whakahōu rānei i muri mai me tētahi utauta pēnei i te Mp3tag, MusicBrainz Picard rānei. He tino nui te WAV — tata ki te 10 MB ia minu i te āhuatanga CD — ā, he 4 GB te tauine o te āhua o te pūrākau, ā, kāore he wāhi mō ngā tohu tika.

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 whakatata, i hoko rānei me te kore parenga, ka huri noa; kāore e hoko te hoko ā-kōrero.

Ko te pūmau ko te 192 kbps mō te ngaro WAV; whakawhitinga mō te kore ngaro WAV. 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 huamanu ngaro i runga i te pūoro.

Mēnā he ngaro te M4A ā, he kore ngaro te WAV (hei tauira, MP3 → WAV), kāore te WAV 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 WAV, ka whakawhāiti anō te WAV 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 rererangi, me te whakaahua pūrākau mai i te M4A me te tuhi ki te WAV 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 i te WAV raw. Ko te WAV he pūrere oro i runga i te Microsoft me IBM RIFF mai i te tau 1991, ā, ko te mea tata tonu ki ngā whakawhitinga oro me ngā DAW e tuhi ana i runga i te pūkete.

He — ka tangohia he pūranga o ngā pūranga M4A ki roto, ā, ka tukatuka i a rātou i te whakarara. He nui ake ngā kaimahi whakarara o te utu, ā, kāore he tauine tauine-whakahaere, nā reira ka oti te rōpū 500-file i roto i ngā minu, kaua i ngā tekau minu.

Mā te pūmau, ā, — 48 kHz M4A e noho ana ki te 48 kHz i roto i WAV. Mēnā e hiahiatia ana e koe te whakaiti hei ōritetanga (96 kHz → 44.1 kHz mō te pūngao CD), ka hoatu te kōwhiringa ā-tauira ki te whakarerekētanga o te āhua o te waeine tiketike i roto i te whakawhitinga waehere ōrite.

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

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

He — e whakaatatia ana ngā pūranga M4A i whakawāteatia i roto i ngā kaimahi takitahi, ā, ka tangohia i roto i ngā minu. Kāore anō mātou ki te whakataetae, ki te penapena roa, ki te tiritiri rānei i ngā ihirangi oro. Ko te matapihi tauwhāiti katoa i roto i /privacy/.