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.

192 kbps te pūtake mō te ngaro WAV; whakawhitinga mō te kore ngaro WAV. Whakapae ki te 320 kbps mēnā e hiahiatia ana e koe te pūmautanga ngaro tino nui, 128 kbps mō te tuaritanga podcast-ki te rahi, 96 kbps rānei mō ngā pūtake reo- anake e nui ake ai te nui o te faila iti iho i te taipitopito o te whare karakia.

Mēnā he ngaro te M4A (MP3, AAC) ā, he kore ngaro te WAV (WAV, FLAC), kāore te WAV i te pai ake i te M4A — kāore e taea e koe te whakaora i ngā mōhiohio kua whakakoretia e te codec ngaro M4A. Mēnā he kore ngaro te M4A ā, he ngaro te WAV, e tūmanako ana te WAV whakakōrero kia whakawhāiti anō; i te 192 kbps kāore e mōhiotia te ngaro ki te nuinga o ngā oro.

He — ko te taitara, te kaitapere, te pūrākau, te tau, te tau rererangi, te toi pūrākau, te BPM, te whiwhinga whakahōu e ako ana mai i te M4A me te tuhi ki ngā āpure ōrite i runga i te WAV. ID3v2 (MP3), ngā kōrero Vorbis (OGG, FLAC), ngā ngota MP4 (AAC, M4A), RIFF INFO (WAV), iXML ngā wāhanga katoa o te mahere mārama. 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 tētahi pūranga o ngā pūranga M4A ki roto, ā, ka tukatuka i a rātou. He nui ake ngā kaimahi taurite o te Premium, ā, kāore he tauine tauine-whakahaere, nā reira ka oti te rōpū 500-file i roto i ngā minu, kaua i ngā tekau minu. Ka tiakina te hanganga pūranga i te huaputa ZIP.

Mā te pūmau, ā, (48 kHz M4A e whakaputa ana i te 48 kHz WAV, he 44.1 kHz M4A e whakaputa ana i te 44.1 kHz WAV). Mō te ōritetanga tauwhāiti — hei tauira, te whakaiti i ngā māngai whare taupuni 96 kHz ki te 44.1 kHz WAV mō te whakairo CD, te whakapiki rānei i te 22 kHz te karere reo ki te 44.1 kHz WAV — ka hoatu te whakaiti o te ōrite tauira ki te whakarerekētanga āhua SOX-ki te āhua.

He — ka hoatu e te kōwhiringa pūnoa-pūnoa te pūnoa ITU-R BS.1770 / EBU R128 ki te huaputa WAV, e ūnga ana ki -14 LUFS (paerewa rerenga), -16 LUFS rānei (paerewa podcast), he uara rānei o te tangata. Ka whai hua ina tahuri ngā whakarerekētanga pūnoa me ngā taumata whakahaere rerekē ki tētahi pūrākau pūoro kotahi WAV.

Ka whakapāpāho te MP3 i ngā pūrere katoa i hangaia i ngā tau e 20 kua hipa. Ka whakapāho te AAC i runga i te Apple, i te nuinga o te Android, i te Sonos, i ngā pūrere o nāianei. Ka whakapāho te FLAC i runga i te Sonos me te Android o nāianei, he iti iho te pai i ngā iPods tawhito. Ka whakapāho te WAV i ngā mea katoa engari he nui te faila. Ka kōwhiria e te whakapāho-whāinga pūrere tētahi pūrere haumaru WAV mō te pūnaha e tautuhia ana e koe.

He — e whakaata ana ngā pūranga M4A i whakarewaina i roto i ngā kaimahi motuhake, ā, ka tangohia i roto i ngā minu. Kāore anō tātau ki te whakataetae, ki te penapena, ki te tiritiri rānei i ngā ihirangi oro. Ka haere te pūtautau i runga i ngā pūrere e whakahaeretia ana e tātau i te mutunga ki te mutunga; kāore he ratonga tuatoru e whiwhi ana i tō koe.