3GP → 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. Kei roto i te 3GP te H.263, MPEG-4 rānei, te wāhanga 2 o te ataata me te oro kōrero AMR, e whakawāteatia ana katoa mō te iti rawa o te bitrate, kaua ko te āhuatanga. He ngaro te MP3: ko te tauira ā-hinengaro e whakakore ana i ngā auautanga kāore e taea e te oro te mōhio, i te nuinga o te wā i te 128 ki te 320 kbps.

Heoi, ā, he whiwhinga tūturu i runga i te 3GP, kāore he wāhi e whakawhirinaki ana ki te rokiroki i tētahi o ia. MP3 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. 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 bitrate tōtika mō te ngaro MP3 ko te 192 kbps, he mārama mō te pūoro. Ka taea e koe te whakawātea ki te 320 kbps (audiophile), 96-128 kbps rānei (rorohiko / podcast / pūranga iti ake). Ka puta te bitrate dropdown i roto i ngā kōwhiringa tiketike i mua i te kōwhiri i te tahuri.

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

Mā te pūmau, ā, — 48 kHz te oro i roto i tōmu 3GP e noho ana 48 kHz i roto i te huaputa MP3. Mō te pūkōrero CD-burning, te pūkōrero rānei, ka taea e koe te whakawātea ki te 44.1 kHz mā te whakatata i te ōrite tauira; he mātauranga SoX-kitenga nui te tātai.

He — ka tangohia tētahi pūrākau o ngā pūranga 3GP, ā, ka tangohia e tātau te oro i te āhua ōrite. Ka whiwhi ngā kaiwhakamaori Premium ki ngā kaimahi ā-tōtahi kē atu; i runga i te 50-file batch ko tēnei te rerekētanga i waenganui i ngā minu me ngā minu tekau.

Mēnā ka mau te 3GP i te wāhanga, i te metadata rānei o te rerenga, ka tārua tātau i ngā āpure taitara / kaitapere / pūrākau ki roto i te MP3. Mēnā kāore, ka puta mai te MP3 kāore i te whakahuahua - ka whakamahia te kaiwhakawhanake tohu (Mp3tag, Picard) i muri i te whakahuahua mō te whakahuahua ā-whakahaere.

He tere te reo demux + encoding — i te nuinga o te 5 ki te 15% o te roanga pūtake. Ko te 1-ora 3GP → MP3 e whakamutu ana i roto i te 3 ki te 9 minu i runga i te pūtautau paerewa; Ka whakaiti te whakatata Premium i tēnei i ngā mahi whakatōpū.

Kāore i tēnei utauta — ka tangohia te oro katoa hei MP3, kātahi ka whakamahia /oro-trim /, /oro-kuteru rānei hei whakaiti i te wāhanga. He tere ake te ara e rua-whakapae i te mahi whakakotahi, ā, ka hoatu ki a koe te mana tika o te taumata-whakapae.

He — te tauira anō o te āhua o te āhua o ia huringa: kaimahi motuhake, kāore he arotakenga tangata, he whakakore ā-tōtika i roto i ngā minu o te whakamutu. Ko te matapihi o te tiakitanga i roto i /privacy/.

Tata tonu ki te tīpakonga rerekē i ngā wā katoa: 3GP 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 MP3 kāwai e tautoko ana i te huaputa rererangi maha (FLAC, OGG).