Opus → MP3

Heoi, ā, e tika ana te whakarite i te taha. He ngaro nga āhuahira e rua, nā reira ko te MP3 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 MP3 mai i tērā, ka ārai katoa i te whakawhitinga rua.

Ko te pūmau ko te 192 kbps mō te ngaro MP3; whakawhitinga mō te kore ngaro MP3. 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 Opus ā, he kore ngaro te MP3 (hei tauira, MP3 → WAV), kāore te MP3 i te pai ake i te Opus — kāore e taea e koe te whakaora i ngā mōhiohio kua whakakoretia. Mēnā he kore ngaro te Opus ā, he ngaro te MP3, ka whakawhāiti anō te MP3 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 Opus me te tuhi ki te MP3 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 MP3 te MPEG-1 Audio Layer III, i oti i te tau 1993, ā, ko te āhua oro tino whakawātea o te reo.

He — ka tangohia he pūranga o ngā pūranga Opus 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 Opus e noho ana ki te 48 kHz i roto i MP3. 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 MP3, 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 MP3 kua whakawhāititia mō ngā pūrere ūnga. Kāore he mea e whakawātea ana i te MP3 mō te ōritetanga — ko ngā pūrere waka, ngā pūrere ā-rohe, ngā DAP me ngā pūrere o te rua tekau tau e whakaako ana i a ia me te kore pātai. Ko te MP3 e whakawāteatia ana e te AAC me te Opus i ia mokatere tātai, kāore e taea te rokiroki i ngā kanikani nui ake i te rua, ā, ka tāpiri tonutia he whakamutu ā-waenga iti.

He — e whakaatatia ana ngā pūranga Opus 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/.

Ko te kōwae ōrite-re-mux: 10 ki te 30 sekone. Whakawae ki tētahi kōwae rerekē: i te nuinga o te 10 ki te 20% o te roanga pūtake, nā reira he 1-ora Opus → MP3 e whakamutu ana i roto i te 6 ki te 12 min. Ko ngā mahi rōpū e whakatata ana i waenganui i ngā kaimahi mō ētahi atu whakateretanga.

Kāore he huringa whiwhinga ā-māori e puta ana engari rawa ka whakahohetia e koe te kōwhiringa pūnoa. Mēnā ka kitea e koe he huringa taumata, ka taea e tōna kaiwhakaari oro, te puna pāpāho rānei te hoatu i te ReplayGain, i te pūnoa-pātahi rānei i te whakateretanga — ehara i a mātou. Whakarewa i tēnei hei whakarongo i ngā taumata pono MP3.